Qhov sib txawv tseem ceeb ntawm combustion thiab pyrolysis yog qhov combustion tshwm sim nyob rau hauv lub xub ntiag ntawm oxygen whereas lub pyrolysis tshwm sim nyob rau hauv qhov tsis muaj (los yog nyob ze tsis muaj) ntawm oxygen.
Ob qho tib si combustion thiab pyrolysis yog cov tshuaj tiv thaiv thermochemical. Combustion yog exothermic vim nws ua kom sov thiab lub teeb lub zog. Pyrolysis, ntawm qhov tod tes, yog cov tshuaj tiv thaiv decomposition uas cov organic teeb meem decomposes thaum peb muab lub zog cua sov. Txawm hais tias ob qho tib si yog cov tshuaj tiv thaiv thermochemical, muaj qee qhov sib txawv ntawm combustion thiab pyrolysis.
Dab tsi yog combustion?
Combustion yog cov tshuaj tiv thaiv uas cov tshuaj tiv thaiv nrog oxygen los tsim cov cua sov thiab lub teeb ua lub zog. Feem ntau, peb hu nws "kub". Lub teeb lub zog uas tawm los ntawm qhov tshwm sim ntawm cov tshuaj tiv thaiv no zoo li nplaim taws. Txawm li cas los xij, feem ntau ntawm lub zog tso tawm raws li cua sov. Muaj ob hom kev ua kom tiav thiab tsis tiav.
Complete combustion
hom kev tshwm sim no tshwm sim thaum muaj cov pa ntau dhau. Nws muab cov khoom siv tsawg tsawg raws li qhov tshwm sim; Piv txwv li, yog tias peb hlawv roj, nws muab carbon dioxide thiab dej. Yog tias peb hlawv cov tshuaj lom neeg, nws muab cov oxide ruaj khov tshaj plaws ntawm cov khoom ntawd.
Tsis tiav combustion
hom tshuaj tiv thaiv no tshwm sim thaum muaj cov pa tsawg dua. Tsis zoo li tag nrho combustion, qhov no muab ntau cov khoom raws li qhov tshwm sim; Piv txwv li, yog tias peb hlawv roj hauv qhov muaj cov pa oxygen tsawg, nws muab cov pa roj carbon monoxide, carbon dioxide thiab dej. Qee zaum, nws muab cov pa roj carbon tsis zoo.
Daim duab 01: Kev sib xyaw txhais tau tias hlawv
Ntawm kev siv cov tshuaj tiv thaiv combustion, qhov tseem ceeb tshaj plaws yog kev tsim hluav taws xob los ntawm kev hlawv roj. Piv txwv li: Rau tsheb, kev lag luam, thiab lwm yam. Ntxiv rau qhov ntawd, peb tuaj yeem tsim hluav taws kub los ntawm cov tshuaj tiv thaiv no. Ex: ua noj. Ntxiv mus, peb tuaj yeem siv cov tshuaj tiv thaiv no txhawm rau txheeb xyuas cov tshuaj lom neeg raws li lawv cov nplaim xim.
YPyrolysis yog dab tsi?
Pyrolysis yog cov tshuaj tiv thaiv decomposition uas cov ntaub ntawv organic tawg thaum tsis muaj oxygen. Peb yuav tsum tau siv cov cua sov rau qhov kev tshwm sim no kom nce qib. Li no, peb tuaj yeem nce tus nqi ntawm cov tshuaj tiv thaiv los ntawm kev nce tus nqi ntawm cov cua sov. Feem ntau, qhov tshuaj tiv thaiv no tshwm sim ntawm lossis siab dua 430oC. Txawm li cas los xij, feem ntau, peb ua cov tshuaj tiv thaiv no nyob ze qhov tsis muaj oxygen vim nws nyuaj heev kom tau txais qhov chaw tsis muaj oxygen. Cov khoom kawg ntawm cov tshuaj tiv thaiv no tuaj yeem nyob rau theem roj, theem ua kua lossis theem khoom. Feem ntau, nws tsim gases. Yog tias nws tsim cov kua, peb hu cov kua no "tar". Yog tias nws yog ib qho khoom, feem ntau, tuaj yeem yog charcoal lossis biochar.
Feem ntau, pyrolysis hloov cov organic teeb meem rau hauv lawv cov gaseous Cheebtsam, cov khoom seem ntawm carbon thiab tshauv, thiab cov kua hu ua pyrolytic roj. Ntawm no, peb siv ob txoj kev loj los tshem tawm cov kab mob ntawm cov khoom; kev puas tsuaj thiab tshem tawm. Cov txheej txheem kev puas tsuaj rhuav tshem cov kab mob mus rau hauv cov khoom me me thaum cov txheej txheem tshem tawm cais cov kab mob los ntawm qhov xav tau.
Kev siv cov tshuaj tiv thaiv no yog nyob rau hauv kev lag luam txhawm rau tsim cov hluav taws xob hluav taws xob, cov pa roj carbon activated, methanol, thiab lwm yam. Tsis tas li ntawd, nws tuaj yeem rhuav tshem cov organic tebchaw semi-volatile, fuels, thiab lwm yam ntxiv rau qhov ntawd; peb tuaj yeem siv cov txheej txheem no los kho cov khib nyiab organic tawm ntawm cov chaw ua haujlwm.
Qhov txawv ntawm combustion thiab Pyrolysis yog dab tsi?
Combustion yog cov tshuaj tiv thaiv uas cov tshuaj tiv thaiv nrog oxygen los tsim cov cua sov thiab lub teeb ua lub zog. Nws tshwm sim nyob rau hauv lub xub ntiag ntawm oxygen nyob rau hauv cov huab cua. Qhov tseem ceeb tshaj, nws tsim cov khoom lag luam gaseous kawg. Pyrolysis yog cov tshuaj tiv thaiv decomposition uas cov ntaub ntawv organic tawg thaum tsis muaj oxygen. Nws tshwm sim nyob rau hauv qhov tsis muaj oxygen hauv qhov chaw. Tsis zoo li combustion, nws tsim gaseous Cheebtsam nrog rau cov kab ntawm cov kua thiab cov residues ib yam nkaus.
Summary – Combustion vs Pyrolysis
Ob qho tib si combustion thiab pyrolysis yog cov tshuaj tiv thaiv thermochemical. Tab sis, muaj qhov sib txawv ntawm combustion thiab pyrolysis. Qhov sib txawv tseem ceeb ntawm combustion thiab pyrolysis yog combustion tshwm sim nyob rau hauv lub xub ntiag ntawm oxygen whereas pyrolysis tshwm sim nyob rau hauv qhov tsis muaj (los yog nyob ze ntawm tsis muaj) ntawm oxygen.
