Calcium Carbide vs Alternative Raw Materials for Industrial Acetylene Production

Acetylene yog ib qho tseem ceeb ntawm kev lag luam roj siv nyob rau hauv cov organic synthesis, hlau vuam, thiab chemical manufacturing, thiab calcium carbide tau ntev yog thawj raw khoom rau nws ntau lawm. Txawm li cas los xij, ob peb lwm cov khoom siv raw tau tshwm sim nyob rau xyoo tas los no, txhua qhov muaj qhov zoo sib xws thiab kev txwv. Rau cov neeg siv khoom lag luam thiab cov neeg xa khoom tshuaj, kev sib piv calcium carbide nrog cov kev xaiv no yog qhov tseem ceeb rau kev xaiv tus nqi tshaj plaws - kev xaiv zoo thiab muaj txiaj ntsig rau kev tsim acetylene.

 

Calcium carbide lub ntsiab kom zoo dua yog nws cov acetylene siab yield: 1 ton ntawm calcium carbide (98% purity) tsim kwv yees li 300 cubic meters ntawm acetylene. Nws kuj tseem muaj nyob thoob plaws ntiaj teb, nrog Tuam Tshoj, Is Nrias teb, thiab Russia yog cov neeg tsim khoom loj tshaj plaws, ua kom cov khoom ruaj khov thiab cov nqi sib tw. Tsis tas li ntawd, calcium carbide-raws li acetylene ntau lawm yog ib tug paub tab, zoo-tsim txheej txheem, yuav tsum tau tsawg kawg nkaus technologies peev thiab yooj yim scalability rau loj - teev ua hauj lwm.

 

Lwm txoj hauv kev zoo tshaj plaws rau calcium carbide rau acetylene ntau lawm yog cov nkev roj (methane). Cov pa roj carbon monoxide-raws li acetylene ntau lawm suav nrog qee qhov oxidation ntawm methane, txheej txheem uas tsim acetylene nrog rau carbon monoxide thiab hydrogen. Txoj kev no muaj kev cuam tshuam ib puag ncig qis dua li calcium carbide, vim nws tsim cov khoom pov tseg tsawg dua thiab tso pa tawm hauv tsev cog khoom. Txawm li cas los xij, nws yuav tsum muaj qhov kub thiab txias (1,500-2,000 degree) thiab cov cuab yeej tshwj xeeb, nce nqi peev thawj zaug.

 

Lwm txoj hauv kev yog propane lossis butane tawg, uas ua rau acetylene los ntawm cua sov propane los yog butane mus rau qhov kub thiab txias. Txoj kev no yog tsim rau me me - nplai acetylene ntau lawm, vim nws muaj nqi qis dua li cov pa roj carbon monoxide oxidation. Txawm li cas los xij, nws muaj cov txiaj ntsig acetylene qis dua li calcium carbide thiab rhiab heev rau cov khoom noj khoom haus zoo, ua rau nws tsis zoo rau cov ntawv thov loj -.

 

Thaum sib piv calcium carbide nrog lwm txoj kev, tus nqi yog qhov tseem ceeb. Calcium carbide feem ntau yog tus nqi ntau dua - siv tau rau loj - nplai acetylene ntau lawm, tshwj xeeb tshaj yog nyob rau hauv cheeb tsam uas muaj ntau cov thee (cov khoom tseem ceeb rau calcium carbide ntau lawm). Natural gas-raws li acetylene yog kim dua nyob rau hauv cov cheeb tsam nrog cov nqi roj ntuj siab tab sis muaj txiaj ntsig ib puag ncig. Propane/butane cracking tsuas yog tus nqi xwb - siv tau rau me me - cov haujlwm me me lossis thaj chaw uas muaj cov calcium carbide tsawg.

 

Rau feem ntau cov ntawv thov kev lag luam,calcium carbidetseem yog cov khoom siv raw nyiam rau acetylene ntau lawm vim nws cov txiaj ntsig siab, tus nqi qis, thiab cov khoom ruaj khov. Thaum lwm txoj hauv kev muaj qhov zoo ntawm ib puag ncig lossis scalability zoo hauv cov xwm txheej tshwj xeeb, calcium carbide qhov kev ua tau zoo thiab cov txheej txheem tsim tawm kom paub meej tias nws yuav nyob twj ywm lub hauv paus ntawm kev lag luam acetylene rau xyoo tom ntej.