Mainstream industrial feedstocks
Petroleum-raws li feedstocks: Cov no yog cov khoom siv dav siv thoob plaws ntiaj teb rau kev tsim cov olefin, suav nrog naphtha, lub teeb diesel, thiab roj refinery. High -kub tawg txheej txheem ua kom muaj ntau yam ntawm cov olefins yooj yim xws li ethylene thiab propylene; txoj kev no tam sim no suav rau feem ntau ntawm kuv lub teb chaws lub peev xwm ntau lawm.
Coal: Ua ke nrog kuv lub teb chaws cov peev txheej profile-tus yam ntxwv los ntawm cov thee nplua nuj tab sis tsis tshua muaj roj thiab cov nkev ntuj - txoj hauv kev no suav nrog kev hloov cov thee rau hauv methanol, ua raws li Methanol - mus rau -Olefins (DMTO) txheej txheem. Txoj kev no tau ua tiav qhov loj - daim ntawv thov kev lag luam thiab suav txog kwv yees li ib -feem peb ntawm Tuam Tshoj tag nrho cov peev txheej olefin.
Natural gas thiab light hydrocarbons: Cov no suav nrog cov khoom xws li ethane thiab propane. Leveraging shale gas peev xwm tso cai rau kev tawg ncaj qha los tsim olefins; cov txheej txheem yog streamlined thiab ua rau muaj kuab paug tsawg. Qhov sib koom ntawm lub peev xwm hauv tsev mob siab rau lub teeb hydrocarbon tawg tau nce tsis tu ncua nyob rau xyoo tas los no.
Laboratory npaj feedstocks
Rau cov khoom me me -labs, cov khoom noj khoom haus muaj xws li cawv (xws li ethanol), uas ua rau lub cev qhuav dej catalyzed los ntawm concentrated sulfuric acid kom yield olefins. Xwb, haloalkanes tuaj yeem siv tau; olefins yog tsim los ntawm kev tshem tawm cov tshuaj tiv thaiv hauv cov kua dej cawv ntawm sodium hydroxide.
