Technology thiab Catalyst rau S-ETO Ethanol Dehydration rau Ethylene

Ethanol dehydration to ethylene (ETO) technology yog ib lub tshuab ntsuab los npaj polymer-qib ethylene los ntawm catalytic dehydration ntawm ethanol li raw khoom. Xyoo 1982, lub koom haum Shanghai pib kawm txog ethanol-ethylene project. Xyoo 1983, JT-11 thiab lwm yam hotbed ethanol dehydration catalyst tau tsim, thiab hauv 2005,6, 000 tons / xyoo ntawm hotbed ethanol lub cev qhuav dej rau ethylene technology tau tsim thiab hloov dua siab tshiab. Txhawm rau ua kom tau raws li qhov xav tau ntawm cov cuab yeej loj, thaum Lub Kaum Hli 2006, Shanghai Institute tau ua ntau theem adiabatic txaj cov tshuaj tiv thaiv catalyst thiab cov txheej txheem tshawb fawb hauv Shanghai Petrochemical. Hauv xyoo 2014, adiabatic txaj kev lag luam kuaj ntawm 3000 tons / xyoo tau ua tiav thiab dhau qhov kev lees paub. Rau lub hauv paus no ua tiav cov txheej txheem thev naus laus zis rau ethanol lub cev qhuav dej rau ethylene los ntawm 10,000 tons ntawm lub zog txuag biobased ethylene adiabatic txaj tau ua tiav. Tam sim no, ethanol lub cev qhuav dej qhov project tau txais 10 daim ntawv tso cai suav tsim patents.

Siv lub txaj kub-txias catalyst ntawm JT-11 thiab SETO-1 hom adiabatic catalyst ntawm nws tus kheej tsim los ntawm Shanghai Institute, ua tiav cov txheej txheem thev naus laus zis nrog tubular kub-txaj thiab ntau theem adiabatic tsau txaj raws li lub core tau tsim, suav nrog plaub hauv qab no:

① Tsau-txaj tshuaj tiv thaiv tshuab;

② Reactive gas ntxhua tshuab;

③ Tsawg-kub ethylene sib cais tshuab;

④ Tag nrho cov txheej txheem simulation tshuab.

Nws cov yam ntxwv technical yog raws li nram no:

◆ Cov txheej txheem yooj yooj yim yog qhov zoo: cov tuam txhab tuaj yeem siv cov txheej txheem kub sib npaug lossis cov txheej txheem adiabatic txaj raws li qhov teev thiab xav tau, thiab tuaj yeem xaiv cov khoom tsim nyog refining txheej txheem raws li qhov yuav tsum tau ua ntawm cov khoom zoo;

◆ Ntsuab thiab cov pa roj carbon tsawg: Bioethanol tuaj yeem siv los ua cov khoom siv raw kom ua tiav cov khoom siv txuas ntxiv dua tshiab;

◆ Kev txuag hluav taws xob ua kom zoo dua qub: kev siv hluav taws xob rov qab thiab kev siv cov khoom siv tshuaj tiv thaiv yog txiav txim siab txo cov khoom siv hluav taws xob;

◆ Cov khoom lag luam zoo: cov khoom ethylene concentration siab, thiab polymerized ethylene tuaj yeem tau txais tom qab ua kom zoo dua.

Tam sim no, lub npe tseem ceeb ntawm ethanol lub cev qhuav dej rau ethylene catalyst suav nrog isothermal JT-11 catalyst thiab adiabatic SETO series catalyst, cov khoom tseem ceeb yog raws li hauv qab no:

◆ Muaj zog adaptability ntawm raw cov ntaub ntawv: JT-11 catalyst thiab SETO catalyst tuaj yeem hloov mus rau qhov sib txawv ntawm ethanol;

◆ Kev ua haujlwm siab: JT-I1 catalyst thiab SETO catalysts muaj cov tshuaj tiv thaiv qis dua li cov catalysts zoo sib xws;

◆ High selectivity: Cov concentration ntawm ethylene nyob rau hauv lub cev qhuav dej ntawm SETO catalyst yog mus txog 99.7%;

◆ Kev ruaj ntseg siab: lub neej ntawm JT-11 catalyst tuaj yeem ncav cuag 18 lub hlis, lub neej ntawm SETO catalyst tuaj yeem ncav cuag 24 lub hlis, thiab cov tshuaj tiv thaiv tuaj yeem khaws cia thaum lub sijhawm ua haujlwm;

◆ Ib puag ncig tus phooj ywg: cov catalyst tsis muaj cov khoom tsim kev puas tsuaj thiab corrosive Cheebtsam thiab tsis ua phem rau ib puag ncig.

S-ETO thiab lwm yam hotbed ethanol lub cev qhuav dej rau ethylene thev naus laus zis tau tso cai 5 teeb, xyoo 1988 thawj zaug hauv 3,000 tons / xyoo ethylene daim ntawv tso cai thev naus laus zis, Tom qab, 500 tons / xyoo thiab 3,{{7} } tons / xyoo ntawm ethanol lub cev qhuav dej rau cov nroj tsuag ethylene tau ntawv tso cai thiab hauv 2005 thiab 2006, cov txheej txheem ua tiav rau 6, 000 tons / xyoo ntawm ethanol lub cev qhuav dej rau cov nroj tsuag ethylene tau ntawv tso cai raws li.

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