Biomass zog tsim technology!

Taw qhia

Biomass fais fab tuag yog qhov loj tshaj plaws thiab paub tab niaj hnub siv tshuab hluav taws xob biomass.Tuam Tshoj yog nplua nuj nyob rau hauv biomass peev txheej,

Feem ntau suav nrog kev ua liaj ua teb pov tseg, pov tseg hav zoov, tsiaj txhu tsiaj txhu, pov tseg hauv nroog, cov dej khib nyiab organic thiab cov khoom pov tseg.Tag nrho

tus nqi ntawm cov khoom siv biomass uas tuaj yeem siv los ua lub zog txhua xyoo yog sib npaug li 460 lab tons ntawm cov qauv thee.Hauv 2019, lub

ntsia lub peev xwm ntawm lub ntiaj teb biomass fais fab tuag tau nce los ntawm 131 lab kilowatts hauv 2018 mus txog 139 lab kilowatts, nce ntxiv.

li ntawm 6%.Kev tsim hluav taws xob txhua xyoo tau nce los ntawm 546 billion kWh hauv 2018 txog 591 billion kWh hauv 2019, nce li ntawm 9%,

feem ntau hauv EU thiab Asia, tshwj xeeb tshaj yog Tuam Tshoj.Tuam Tshoj 13th Tsib Xyoo Plan rau Biomass Energy Development qhia tias los ntawm 2020, tag nrho

ntsia lub peev xwm ntawm biomass fais fab tuag yuav tsum ncav cuag 15 lab kilowatts, thiab lub zog txhua xyoo yuav tsum ncav cuag 90 billion.

kilowatt teev.Txog rau thaum xaus ntawm 2019, Tuam Tshoj lub peev xwm ntawm lub tshuab hluav taws xob tsim hluav taws xob tau nce los ntawm 17.8 lab kilowatts hauv 2018 rau

22.54 lab kilowatts, nrog rau kev tsim hluav taws xob txhua xyoo ntau tshaj 111 billion kilowatt teev, tshaj cov hom phiaj ntawm 13th Tsib Xyoo Plan.

Nyob rau hauv xyoo tas los no, lub hom phiaj ntawm Tuam Tshoj txoj kev tsim hluav taws xob biomass muaj peev xwm loj hlob yog siv kev ua liaj ua teb thiab hav zoov pov tseg thiab cov khib nyiab hauv nroog.

nyob rau hauv lub cogeneration system los muab lub zog thiab cua sov rau hauv nroog.

 

Cov kev tshawb fawb tshiab tshaj plaws ntawm biomass fais fab kev siv tshuab

Kev tsim hluav taws xob biomass pib hauv xyoo 1970s.Tom qab lub ntiaj teb kev kub ntxhov hluav taws xob tawg, Denmark thiab lwm lub tebchaws sab hnub poob pib

siv biomass zog xws li straw rau kev tsim hluav taws xob.Txij li thaum xyoo 1990, biomass fais fab tsim tshuab tau tsim muaj zog heev

thiab siv hauv Tebchaws Europe thiab Tebchaws Meskas.Ntawm lawv, Denmark tau ua qhov kev ua tau zoo tshaj plaws hauv kev txhim kho

biomass zog tsim.Txij li thawj zaug straw bio combustion fais fab nroj tsuag tau tsim thiab muab tso rau hauv kev ua haujlwm hauv xyoo 1988, Denmark tau tsim.

Ntau tshaj 100 biomass fais fab nroj tsuag kom deb li deb, dhau los ua tus qauv rau kev tsim cov khoom siv hluav taws xob biomass hauv ntiaj teb.Ntxiv rau,

Cov teb chaws Esxias sab hnub tuaj kuj tau ua qee qhov kev nce qib hauv kev sib txuas ncaj qha ntawm biomass siv nplej husk, bagasse thiab lwm yam khoom siv raw.

Tuam Tshoj txoj kev tsim hluav taws xob biomass pib thaum xyoo 1990.Tom qab nkag mus rau hauv lub xyoo pua 21st, nrog rau kev qhia txog lub teb chaws txoj cai los txhawb cov

txoj kev loj hlob ntawm biomass fais fab tuag, tus naj npawb thiab lub zog sib koom ntawm biomass fais fab nroj tsuag tau nce xyoo los ntawm xyoo.Hauv cov ntsiab lus ntawm

Kev hloov pauv huab cua thiab CO2 emission txo qhov yuav tsum tau ua, biomass fais fab tuaj yeem txo CO2 thiab lwm yam pa phem emissions,

thiab txawm tias ua tiav xoom CO2 emissions, yog li nws tau dhau los ua ib feem tseem ceeb ntawm cov kws tshawb fawb kev tshawb fawb hauv xyoo tas los no.

Raws li txoj cai ua haujlwm, biomass fais fab tsim tshuab tuaj yeem muab faib ua peb pawg: direct combustion power generation

technology, gasification zog tsim technology thiab coupling combustion zog tsim technology.

Nyob rau hauv txoj cai, biomass ncaj combustion zog tsim yog heev zoo ib yam li thee-fired boiler thermal zog tiam, uas yog, biomass roj.

(kev ua liaj ua teb pov tseg, pov tseg hav zoov, pov tseg hauv nroog, thiab lwm yam) raug xa mus rau hauv chav boiler haum rau biomass combustion, thiab cov tshuaj

lub zog nyob rau hauv biomass roj yog hloov mus rau hauv lub zog sab hauv ntawm high-temperature thiab high-pressure chav los ntawm kev siv lub high-temperature combustion.

txheej txheem, thiab hloov dua siab tshiab rau hauv lub tshuab hluav taws xob los ntawm lub zog hluav taws xob, Thaum kawg, lub zog hluav taws xob tau hloov mus rau hauv hluav taws xob.

lub zog los ntawm lub tshuab hluav taws xob.

Biomass gasification rau lub zog tsim muaj cov kauj ruam hauv qab no: (1) biomass gasification, pyrolysis thiab gasification ntawm biomass tom qab crushing,

ziab thiab lwm yam kev kho ua ntej nyob rau hauv qhov kub thiab txias ib puag ncig los tsim cov pa roj uas muaj cov khoom sib txuas xws li CO, CH4thiab

H 2;(2) Gas purification: combustible gas generated thaum lub sij hawm gasification yog nkag mus rau hauv lub purification system kom tshem tawm impurities xws li tshauv,

coke thiab tar, thiaj li ua tau raws li qhov xav tau ntawm cov khoom siv hluav taws xob hauv qab;(3) Gas combustion yog siv rau kev tsim hluav taws xob.

Purified combustible gas yog nkag mus rau hauv cov roj turbine los yog lub cav combustion sab hauv rau combustion thiab lub zog tsim, los yog nws tuaj yeem qhia

rau hauv boiler rau combustion, thiab generated high-temperature thiab high-pressure chav yog siv los tsav chav turbine rau lub zog tsim.

Vim tias dispersed biomass cov kev pab, qis zog lub zog thiab cov kev sau nyuaj thiab kev thauj khoom nyuaj thiab kev thauj mus los, kev sib txuas ncaj qha rau cov biomass rau tiam

muaj kev vam khom siab rau kev ruaj khov thiab kev lag luam ntawm cov khoom siv roj, uas ua rau cov nqi siab ntawm biomass fais fab tuag.Biomass ua ke lub zog

tiam yog ib txoj kev tsim hluav taws xob uas siv cov roj biomass los hloov lwm cov roj (feem ntau yog thee) rau co combustion.Nws txhim kho qhov yooj

ntawm biomass roj thiab txo cov thee noj, paub txog CO2emission txo ntawm cov thee hluav taws xob thermal fais fab.Tam sim no, biomass ua ke

Kev tsim hluav taws xob thev naus laus zis feem ntau suav nrog: ncaj qha sib xyaw combustion txuas txuas hluav taws xob tsim hluav taws xob, kev siv hluav taws xob ncaj qha txuas txuas hluav taws xob

tiam technology thiab chav ua ke nrog lub zog tsim technology.

1. Biomass direct combustion power generation technology

Raws li tam sim no biomass direct fired generator sets, raws li lub cub tawg hom siv ntau nyob rau hauv engineering xyaum, lawv muaj peev xwm muab faib ua feem.

nyob rau hauv txheej txheej combustion technology thiab fluidized combustion technology [2].

Layered combustion txhais tau hais tias cov roj raug xa mus rau qhov chaw ruaj khov lossis txawb grate, thiab huab cua yog nkag los ntawm hauv qab ntawm lub grate los ua.

combustion cov tshuaj tiv thaiv los ntawm cov roj txheej.Tus neeg sawv cev txheej txheej combustion tshuab yog kev qhia txog cov dej txias vibrating grate

technology tsim los ntawm BWE Company nyob rau hauv Denmark, thiab thawj biomass fais fab nroj tsuag nyob rau hauv Tuam Tshoj - Shanxian fais fab nroj tsuag nyob rau hauv Shandong xeev yog

ua nyob rau hauv 2006. Vim yog cov hmoov tshauv tsawg thiab siab combustion kub ntawm biomass roj, grate phaj yog yooj yim puas vim overheating thiab

txias txias.Qhov tseem ceeb tshaj plaws ntawm cov dej txias vibrating grate yog nws cov qauv tshwj xeeb thiab txias hom, uas daws teeb meem ntawm grate.

overheating.Nrog rau kev taw qhia thiab kev txhawb nqa ntawm Danish dej-txias vibrating grate tshuab, ntau lub lag luam hauv tsev tau qhia

biomass grate combustion technology nrog kev ywj pheej kev txawj ntse txoj cai los ntawm kev kawm thiab kev zom zaub mov, uas tau muab tso rau hauv qhov loj

kev ua haujlwm.Cov neeg sawv cev ntawm cov tuam txhab suav nrog Shanghai Sifang Boiler Factory, Wuxi Huaguang Boiler Co., Ltd., thiab lwm yam.

Raws li lub tshuab hluav taws xob combustion uas muaj cov kua dej ntawm cov khoom sib txuas, cov tshuab hluav taws xob fluidized combustion muaj ntau yam zoo dua lub txaj.

combustion technology nyob rau hauv hlawv biomass.Ua ntej ntawm tag nrho cov, muaj ntau inert txaj cov ntaub ntawv nyob rau hauv lub txaj fluidized, uas muaj peev xwm kub thiab txias

muaj zogadaptability rau biomass roj nrog cov ntsiab lus dej siab;Qhov thib ob, qhov ua tau zoo ntawm cov cua sov thiab huab cua hloov pauv ntawm cov roj-khoom sib xyaw hauv cov kua dej

txaj enablesbiomass roj kom sov sai sai tom qab nkag mus rau hauv qhov cub.Nyob rau tib lub sijhawm, cov khoom siv txaj nrog lub peev xwm kub siab tuaj yeem ua tau

tuav lub qhov cubqhov kub thiab txias, xyuas kom cov combustion stability thaum hlawv tsis tshua muaj nqi calorific biomass roj, thiab kuj muaj tej yam zoo

nyob rau hauv unit load adjustment.Nrog kev txhawb nqa ntawm lub teb chaws kev tshawb fawb thiab thev naus laus zis txoj kev npaj, Tsinghua University tau tsim "Biomass

Circulating Fluidized txaj BoilerTshuab nrog High Steam Parameters ", thiab tau ua tiav lub ntiaj teb loj tshaj plaws 125 MW ultra-high

siab ib zaug reheat biomass circulatingfluidized txaj boiler nrog cov cuab yeej no, thiab thawj 130 t / h high-temperature thiab high-pressure

circulating fluidized txaj boiler hlawv ntshiab pob kws straw.

Vim tias feem ntau cov hlau alkali siab thiab chlorine cov ntsiab lus ntawm biomass, tshwj xeeb tshaj yog cov khib nyiab ua liaj ua teb, muaj teeb meem xws li tshauv, slagging.

thiab corrosionnyob rau hauv qhov kub-kub qhov chaw thaum lub sij hawm combustion txheej txheem.Cov chav tsis muaj biomass boilers hauv tsev thiab txawv teb chaws

feem ntau yog nruab nrabkub thiab nruab nrab siab, thiab lub zog tsim efficiency tsis siab.Kev lag luam ntawm biomass txheej ncaj qha raug rho tawm haujlwm

kev tsim hluav taws xob txwvnws txoj kev loj hlob zoo.

2. Biomass gasification zog tsim tshuab

Biomass gasification fais fab nroj tsuag siv tshwj xeeb gasification reactors los hloov biomass pov tseg, xws li ntoo, straw, straw, bagasse, thiab lwm yam.

rau hauvcombustible gas.Lub generated combustible gas yog xa mus rau cov roj turbines los yog internal combustion engine rau lub hwj chim tiam tom qab plua plav

tshem tawm thiabKev tshem tawm coke thiab lwm yam kev ua kom huv huv [3].Tam sim no, feem ntau siv gasification reactors tuaj yeem muab faib ua lub txaj ruaj

gasifiers, fluidizedtxaj gasifiers thiab entrained flow gasifiers.Nyob rau hauv lub txaj taag gasifier, cov khoom txaj yog qhov ruaj khov, thiab ziab, pyrolysis,

oxidation, txothiab lwm yam kev cuam tshuam yuav ua tiav nyob rau hauv ib ntus, thiab thaum kawg hloov mus rau cov roj hluavtaws.Raws li qhov sib txawv ntawm qhov ntws

kev taw qhia ntawm gasifierthiab cov roj hluavtaws, cov khoom siv lub txaj ruaj khov feem ntau muaj peb hom: upward suction (counter flow), downward suction (forward

flow) thiab kab rov tav suctiongasifiers.Lub txaj fluidized gasifier yog tsim los ntawm lub gasification chamber thiab cua distributor.Gasifying tus neeg sawv cev yog

uniformly pub rau hauv lub gasifierlos ntawm huab cua distributor.Raws li cov yam ntxwv sib txawv ntawm cov roj-cov khoom ntws, nws tuaj yeem muab faib ua bubbling

fluidized txaj gasifier thiab circulatingfluidized txaj gasifier.Gasification tus neeg sawv cev (oxygen, chav, thiab lwm yam) nyob rau hauv lub entrained txaus txaj entrains biomass

particles thiab yog txau rau hauv qhov cublos ntawm ib lub nozzle.Cov roj nplua nyeem tau tawg thiab raug tshem tawm hauv cov pa roj nrawm nrawm.Hauv qab siab

qhov kub thiab txias, nplua roj hais tawm sai sai tom qabtiv nrog oxygen, tso cua sov ntau.Khoom particles tam sim ntawd pyrolyzed thiab gasified

los tsim cov roj hluavtaws thiab slag.Rau lub updraft tsautxaj gasifier, cov ntsiab lus tar hauv cov roj synthesis siab.Lub downdraft tsau txaj gasifier

muaj cov qauv yooj yim, yooj yim noj thiab ua haujlwm zoo.

Nyob rau hauv qhov kub siab, cov tar generated tuaj yeem tawg tag rau hauv cov pa roj, tab sis qhov hluav taws xob kub ntawm lub gasifier yog siab.Lub fluidized

txajGasifier muaj qhov zoo ntawm cov tshuaj tiv thaiv gasification ceev, cov khoom siv roj sib cuag hauv lub cub tawg thiab qhov kub thiab txias, tab sis nws

khoom sivqauv yog complex, cov tshauv cov ntsiab lus nyob rau hauv lub synthesis gas yog siab, thiab downstream purification system yog heev xav tau.Cov

entrained flow gasifiermuaj cov kev xav tau siab rau cov khoom siv pretreatment thiab yuav tsum tau crushed rau hauv cov khoom zoo kom paub meej tias cov ntaub ntawv tuaj yeem

react kiag li nyob rau hauv ib tug luv luvsij hawm nyob.

Thaum qhov ntsuas ntawm biomass gasification fais fab tuag me me, kev lag luam zoo, tus nqi qis, thiab nws tsim nyog rau tej thaj chaw deb thiab tawg.

nyob deb nroog,uas yog qhov tseem ceeb heev los ntxiv rau Tuam Tshoj lub zog mov.Qhov teeb meem tseem ceeb yuav daws tau yog cov tar uas tsim los ntawm biomass

gasification.Thaum lubroj tar uas tsim nyob rau hauv cov txheej txheem gasification yog txias, nws yuav tsim kua tar, uas yuav thaiv cov raj xa dej thiab cuam tshuam rau

ib txwm ua haujlwm ntawm lub zogcov khoom siv tiam.

3. Biomass txuas lub zog tsim tshuab

Tus nqi roj ntawm cov ntshiab incineration ntawm kev ua liaj ua teb thiab hav zoov pov tseg rau lub zog tsim hluav taws xob yog qhov teeb meem loj tshaj plaws txwv lub zog biomass

tiamkev lag luam.Lub biomass ncaj qha hluav taws xob tsim hluav taws xob chav tsev muaj peev xwm me me, tsis tshua muaj kev lag luam thiab kev lag luam qis, uas tseem txwv cov

kev siv biomass.Biomass txuas nrog ntau qhov chaw roj combustion yog ib txoj hauv kev los txo tus nqi.Tam sim no, txoj kev zoo tshaj plaws los txo

cov nqi roj yog biomass thiab thee-firedtsim hluav taws xob.Xyoo 2016, lub teb chaws tau tshaj tawm Cov Lus Qhia Txog Kev Txhim Kho Cov Hluav Taws Xob Hluav Taws Xob thiab Biomass

Coupled Power Generation, uas zoo heevtxhawb kev tshawb fawb thiab kev txhawb nqa ntawm biomass txuas lub zog tsim tshuab.Nyob rau hauv tsis ntev los no

xyoo, qhov ua tau zoo ntawm biomass fais fab tuag muajtau txhim kho zoo los ntawm kev hloov pauv ntawm cov chaw tsim hluav taws xob hluav taws xob uas twb muaj lawm,

kev siv cov thee txuas nrog biomass fais fab, thiab covtechnical zoo ntawm cov thee hluav taws xob loj hluav taws xob tsim hluav taws xob hauv kev ua haujlwm siab

thiab muaj kuab paug tsawg.Txoj kev technical yuav muab faib ua peb pawg:

(1) ncaj combustion coupling tom qab crushing / pulverizing, nrog rau peb hom co combustion ntawm tib lub zeb nrog tib burner, txawv

mills nrogtib lub burner, thiab sib txawv mills nrog txawv burners;(2) Indirect combustion coupling tom qab gasification, biomass generates

combustible gas los ntawmgasification txheej txheem thiab ces nkag mus rau hauv lub cub tawg rau combustion;(3) Chav coupling tom qab combustion ntawm biomass tshwj xeeb

boiler.Direct combustion coupling yog hom kev siv uas tuaj yeem siv rau ntawm qhov loj, nrog rau kev ua haujlwm siab thiab luv luv peev.

lub voj voog.Thaum lubcoupling ratio tsis siab, cov roj ua, cia, deposition, txaus uniformity thiab nws cov kev cuam tshuam rau boiler kev nyab xeeb thiab kev lag luam

tshwm sim los ntawm hlawv biomasstau raug technically daws los yog tswj.Lub indirect combustion coupling technology kho biomass thiab thee

cais, uas yog heev adaptable rau lubhom biomass, siv tsawg biomass ib chav tsev tsim hluav taws xob, thiab txuag roj.Nws tuaj yeem daws qhov

teeb meem ntawm alkali hlau corrosion thiab boiler coking nyob rau hauvcov txheej txheem combustion ncaj qha ntawm biomass rau qee qhov, tab sis qhov project tsis zoo

scalability thiab tsis haum rau loj-scale boilers.Nyob rau txawv teb chaws,qhov ncaj combustion coupling hom yog tsuas yog siv.Raws li qhov indirect

combustion hom yog ntau txhim khu kev qha, indirect combustion coupling fais fab tuagraws li circulating fluidized txaj gasification yog tam sim no

cov thev naus laus zis rau kev siv biomass coupling fais fab hauv Suav teb.Hauv xyoo 2018,Datang Changshan Power Plant, lub teb chaws

thawj 660MW supercritical thee hluav taws xob tsim hluav taws xob ua ke nrog 20MW biomass fais fab tuagdemonstration project, ua tiav a

ua tiav kev vam meej.Qhov project no tau txais kev ywj pheej tsim biomass circulating fluidized txaj gasification ua ketsim hluav taws xob

txheej txheem, uas siv txog 100000 tons ntawm biomass straw txhua xyoo, ua tiav 110 lab kilowatt teev ntawm biomass fais fab,

txuag txog 40000 tons ntawm cov qauv thee, thiab txo txog 140000 tons ntawm CO2.

Kev tsom xam thiab kev cia siab ntawm txoj kev loj hlob ntawm biomass fais fab kev siv tshuab

Nrog rau kev txhim kho ntawm Tuam Tshoj cov pa roj carbon emission txo qhov system thiab carbon emission trading lag luam, nrog rau kev siv tas li.

ntawm txoj cai ntawm kev txhawb nqa thee-fired coupled biomass fais fab tuag, biomass coupled thee-fired fais fab tiam technology yog ushering nyob rau hauv zoo

txoj kev loj hlob.Kev kho mob tsis zoo ntawm kev ua liaj ua teb thiab hav zoov pov tseg thiab hauv nroog pov tseg hauv nroog yeej ib txwm yog qhov tseem ceeb ntawm

teeb meem hauv nroog thiab nyob deb nroog uas tsoom fwv hauv nroog yuav tsum tau daws sai.Tam sim no txoj cai npaj ntawm biomass fais fab kev lag luam

tau raug xa mus rau tsoomfwv hauv nroog.Tsoom fwv hauv zos tuaj yeem khi ua liaj ua teb thiab hav zoov biomass thiab hauv nroog pov tseg hauv nroog ua ke hauv qhov project

npaj los txhawb cov pov tseg integrated fais fab kev ua haujlwm.

Ntxiv nrog rau combustion technology, tus yuam sij rau kev txhim kho txuas ntxiv ntawm biomass hluav taws xob tsim kev lag luam yog kev txhim kho ywj pheej,

kev loj hlob thiab kev txhim kho ntawm kev txhawb nqa kev pabcuam, xws li biomass roj sau, crushing, kev tshuaj xyuas thiab kev pub mis.Tib lub sijhawm,

txhim kho qib siab biomass roj pretreatment thev naus laus zis thiab txhim kho kev hloov pauv ntawm ib qho khoom siv rau ntau yam roj biomass yog lub hauv paus

kom paub txog tus nqi qis-loj loj daim ntawv thov ntawm biomass fais fab kev siv tshuab yav tom ntej.

1. Coal fired unit biomass ncaj qha coupling combustion zog tsim

Lub peev xwm ntawm biomass ncaj qha hluav taws xob hluav taws xob tsim hluav taws xob feem ntau yog me me (≤ 50MW), thiab cov khoom siv hluav taws xob sib xyaw ua ke tseem tsawg,

feem ntau siab tsis kam los yog qis dua.Yog li ntawd, kev tsim hluav taws xob tsim hluav taws xob ntawm cov hluav taws xob ntshiab biomass tsim hluav taws xob yog feem ntau

tsis siab tshaj 30%.Biomass direct coupling combustion technology transformation raws li 300MW subcritical units lossis 600MW thiab siab dua

supercritical lossis ultra supercritical units tuaj yeem txhim kho biomass fais fab kev ua tau zoo rau 40% lossis siab dua.Tsis tas li ntawd, kev ua haujlwm tsis tu ncua

ntawm biomass ncaj qha hluav taws xob tsim hluav taws xob qhov project units yog nyob ntawm kev muab cov roj biomass, thaum kev ua haujlwm ntawm biomass txuas nrog thee-tawm

Lub zog tsim hluav taws xob tsis nyob ntawm qhov khoom siv biomass.Hom kev sib xyaw ua ke no ua rau biomass sau ua lag luam ntawm lub zog tsim hluav taws xob

cov tuam txhab muaj zog sib tham muaj zog.Lub tshuab hluav taws xob biomass txuas nrog lub tshuab hluav taws xob kuj tuaj yeem siv cov boilers uas twb muaj lawm, chav turbines thiab

auxiliary systems ntawm thee-fired fais fab nroj tsuag.Tsuas yog qhov tshiab biomass roj ua cov txheej txheem yuav tsum tau ua qee qhov kev hloov pauv rau lub boiler combustion

system, yog li thawj zaug peev qis dua.Cov kev ntsuas saum toj no yuav txhim kho cov txiaj ntsig zoo ntawm biomass fais fab kev lag luam thiab txo qis

lawv dependence rau lub teb chaws pab.Hais txog cov pa phem emissions, cov qauv kev tiv thaiv ib puag ncig siv los ntawm biomass ncaj qha raug rho tawm haujlwm

Cov kev tsim hluav taws xob tsim hluav taws xob kuj tseem xoob, thiab qhov txwv tsis pub haus luam yeeb, SO2 thiab NOx yog 20, 50 thiab 200 mg / Nm3.Biomass ua ke

Lub zog tsim hluav taws xob tso siab rau cov thawj coj hluav taws xob hluav taws xob hluav taws xob hluav taws xob thiab siv cov qauv hluav taws xob qis qis.emission txwv ntawm soot, SO2

thiab NOx yog feem ntau 10, 35 thiab 50mg / Nm3.Piv nrog rau biomass ncaj qha hluav taws xob tsim hluav taws xob ntawm tib lub teev, cov pa luam yeeb, SO2

thiab NOx raug txo los ntawm 50%, 30% thiab 75% feem, nrog cov txiaj ntsig tseem ceeb ntawm kev sib raug zoo thiab ib puag ncig.

Txoj hauv kev rau cov thee hluav taws xob loj loj los ua kom muaj kev hloov pauv ntawm biomass ncaj qha txuas txuas hluav taws xob tam sim no tuaj yeem suav nrog

raws li biomass hais - biomass mills - pipeline tis system - pulverized thee pipeline.Txawm hais tias tam sim no biomass ncaj qha sib txuas ua ke

thev naus laus zis muaj qhov tsis zoo ntawm kev ntsuas nyuaj, qhov ncaj qha txuas txuas hluav taws xob tsim tshuab yuav dhau los ua cov kev taw qhia tseem ceeb

Kev tsim hluav taws xob biomass tom qab daws qhov teeb meem no, Nws tuaj yeem paub txog kev sib txuas ntawm biomass nyob rau hauv ib qho kev faib ua feem ntawm cov thee hluav taws xob loj, thiab

muaj cov yam ntxwv ntawm kev loj hlob, kev ntseeg tau thiab kev nyab xeeb.Cov thev naus laus zis no tau siv dav thoob ntiaj teb, nrog rau kev tsim hluav taws xob biomass technology

ntawm 15%, 40% los yog txawm 100% coupling feem.Kev ua haujlwm tuaj yeem ua tiav hauv subcritical units thiab maj mam nthuav dav kom ua tiav lub hom phiaj ntawm CO2 tob

emission txo ntawm ultra supercritical tsis + biomass txuas combustion + cheeb tsam cua sov.

2. Biomass roj pretreatment thiab txhawb pab pawg

Biomass roj yog tus cwj pwm los ntawm cov ntsiab lus dej siab, cov khoom siv hluav taws xob siab, cov nqi qis dua, uas txo nws siv raws li roj thiab

adversely cuam tshuam rau nws npaum thermochemical conversion.Ua ntej tshaj plaws, cov khoom siv raw muaj cov dej ntau, uas yuav ncua cov tshuaj tiv thaiv pyrolysis,

rhuav tshem qhov ruaj khov ntawm cov khoom pyrolysis, txo qhov ruaj khov ntawm cov khoom siv boiler, thiab ua kom lub zog siv zog.Yog li ntawd,

Nws yog ib qho tsim nyog yuav tau pretreat biomass roj ua ntej daim ntawv thov thermochemical.

Biomass densification processing thev naus laus zis tuaj yeem txo qhov nce hauv kev thauj mus los thiab khaws cov nqi uas tshwm sim los ntawm lub zog tsawg ntawm biomass.

roj.Piv nrog rau cov tshuab ziab khaub ncaws, ci biomass roj nyob rau hauv ib qho chaw inert thiab nyob rau hauv ib tug tej yam kub yuav tso dej thiab ib co volatile.

teeb meem hauv biomass, txhim kho cov yam ntxwv roj ntawm biomass, txo O / C thiab O / H.Lub ci biomass qhia txog hydrophobicity thiab yooj yim dua

crushed rau hauv cov khoom zoo.Lub zog ceev yog nce, uas yog qhov tseem ceeb los txhim kho kev hloov dua siab tshiab thiab kev siv nyiaj ua haujlwm ntawm biomass.

Crushing yog ib qho tseem ceeb pretreatment txheej txheem rau biomass zog hloov dua siab tshiab thiab siv.Rau biomass briquette, txo cov particle loj tuaj yeem

nce qhov chaw tshwj xeeb thiab qhov adhesion ntawm cov khoom thaum lub sij hawm compression.Yog hais tias qhov particle loj dhau lawm, nws yuav cuam tshuam rau cov cua sov

ntawm cov roj thiab txawm tias qhov kev tso tawm ntawm cov teeb meem tsis hloov pauv, yog li cuam tshuam rau qhov zoo ntawm cov khoom gasification.Nyob rau yav tom ntej, nws tuaj yeem txiav txim siab los tsim ib qho

biomass roj pretreatment cog nyob rau hauv los yog ze ntawm lub fais fab nroj tsuag kom ci thiab zom cov ntaub ntawv biomass.Lub teb chaws "13th Tsib Xyoo Plan" kuj tau hais meej meej

tawm tias biomass khoom particle roj thev naus laus zis yuav raug kho dua tshiab, thiab kev siv biomass briquette txhua xyoo yuav yog 30 lab tons.

Yog li ntawd, nws yog qhov tseem ceeb tshaj plaws rau kev tshawb fawb txog biomass roj pretreatment technology.

Piv nrog cov pa hluav taws xob thermal, qhov sib txawv tseem ceeb ntawm kev tsim hluav taws xob biomass yog nyob rau hauv biomass roj xa system thiab lwm yam.

combustion technologies.Tam sim no, cov khoom siv hluav taws xob tseem ceeb ntawm biomass tsim nyob rau hauv Suav teb, xws li lub cev boiler, tau ua tiav hauv zos,

tab sis tseem muaj qee qhov teeb meem hauv kev thauj mus los ntawm biomass.Agricultural pov tseg feem ntau muaj ib tug mos mos zoo nkauj heev, thiab noj nyob rau hauv

cov txheej txheem tsim hluav taws xob yog qhov loj.Lub tshuab hluav taws xob yuav tsum tau npaj cov kev them nyiaj raws li kev siv roj tshwj xeeb.Nyob ntawd

muaj ntau hom roj av muaj, thiab kev sib xyaw siv ntau yam roj yuav ua rau cov roj tsis sib xws thiab txawm tias muaj kev cuam tshuam hauv kev noj zaub mov, thiab cov roj.

kev ua haujlwm hauv lub boiler yog qhov ua rau muaj kev kub ntxhov.Peb tuaj yeem siv tag nrho cov txiaj ntsig ntawm fluidized txaj combustion tshuab hauv

roj yoog raws, thiab ua ntej txhim kho thiab txhim kho kev tshuaj ntsuam xyuas thiab kev noj zaub mov raws li lub txaj fluidized boiler.

4 、 Cov lus qhia txog kev ywj pheej innovation thiab kev loj hlob ntawm biomass fais fab kev siv tshuab

Tsis zoo li lwm cov khoom siv hluav taws xob tauj dua tshiab, kev tsim cov tshuab hluav taws xob biomass tsuas yog cuam tshuam cov txiaj ntsig kev lag luam, tsis yog

haiv neeg.Nyob rau tib lub sijhawm, kev tsim hluav taws xob biomass kuj yuav tsum tsis muaj teeb meem thiab txo kev kho ntawm kev ua liaj ua teb thiab hav zoov pov tseg thiab tsev neeg

khib nyiab.Nws cov txiaj ntsig ib puag ncig thiab kev sib raug zoo yog ntau dua li nws cov txiaj ntsig hluav taws xob.Txawm hais tias cov txiaj ntsig tau coj los ntawm kev txhim kho biomass

lub tshuab tsim hluav taws xob tsim nyog tau lees paub, qee qhov teeb meem tseem ceeb hauv kev tsim hluav taws xob biomass kev ua haujlwm tsis tuaj yeem ua tau zoo

hais txog vim muaj yam xws li cov kev ntsuas tsis zoo thiab cov qauv ntawm biomass txuas nrog lub zog tsim hluav taws xob, lub xeev tsis muaj nyiaj txiag

cov nyiaj pab, thiab qhov tsis muaj kev txhim kho ntawm cov thev naus laus zis tshiab, uas yog vim li cas rau kev txwv kev txhim kho biomass fais fab tuag.

technology, Yog li ntawd, kev ntsuas tsim nyog yuav tsum tau coj los txhawb nws.

(1) Txawm hais tias kev siv thev naus laus zis thiab kev txhim kho kev ywj pheej yog ob qho tib si cov lus qhia tseem ceeb rau kev txhim kho lub zog biomass hauv tsev

tiam kev lag luam, peb yuav tsum paub meej tias yog tias peb xav kom muaj txoj hauv kev kawg, peb yuav tsum sib zog ua txoj hauv kev ntawm txoj kev loj hlob ywj pheej,

thiab tom qab ntawd lossi txhim kho domestic technologies.Nyob rau theem no, nws tsuas yog tsim thiab txhim kho biomass fais fab kev siv tshuab, thiab

qee cov thev naus laus zis nrog kev lag luam zoo tuaj yeem siv rau kev lag luam;Nrog rau kev txhim kho maj mam thiab kev loj hlob ntawm biomass ua lub zog loj thiab

biomass zog tsim technology, biomass yuav muaj cov xwm txheej los sib tw nrog fossil fuels.

(2) Tus nqi tswj kev noj qab haus huv tuaj yeem raug txo los ntawm kev txo tus naj npawb ntawm cov khoom siv hluav taws xob ib nrab ntawm cov khoom siv hluav taws xob hluav taws xob tsim hluav taws xob thiab cov

tus naj npawb ntawm cov tuam txhab tsim hluav taws xob, thaum ntxiv dag zog rau kev saib xyuas kev tswj hwm ntawm biomass hluav taws xob tsim cov phiaj xwm.Hais txog roj

kev yuav khoom, xyuas kom txaus thiab cov khoom zoo ntawm cov khoom siv raw, thiab nteg lub hauv paus rau kev ua haujlwm ruaj khov thiab ua haujlwm tau zoo ntawm lub tshuab fais fab.

(3) Ntxiv rau kev txhim kho cov kev cai se tshwj xeeb rau kev tsim hluav taws xob biomass, txhim kho kev ua haujlwm zoo los ntawm kev cia siab rau kev cog lus

kev hloov pauv, txhawb nqa thiab txhawb kev tsim kho ntawm lub nroog ntau qhov chaw pov tseg cov khoom siv hluav taws xob ua kom sov ua kom pom tseeb, thiab txwv tus nqi

ntawm biomass tej yaam num uas tsuas yog tsim hluav taws xob tab sis tsis kub.

(4) BECCS (Biomass zog ua ke nrog carbon capture thiab cia technology) tau npaj ib tug qauv uas combines biomass zog siv

thiab carbon dioxide capture thiab cia, nrog dual zoo ntawm cov pa roj carbon emissions tsis zoo thiab carbon nruab nrab lub zog.BECCS yog lub sijhawm ntev

emission txo technology.Tam sim no, Tuam Tshoj tsis tshua muaj kev tshawb fawb hauv daim teb no.Raws li lub teb chaws loj ntawm kev siv cov peev txheej thiab carbon emissions,

Tuam Tshoj yuav tsum suav nrog BECCS nyob rau hauv lub tswv yim tswv yim los daws cov kev hloov pauv huab cua thiab nce nws cov peev txheej hauv cheeb tsam no.


Post lub sij hawm: Dec-14-2022