A Comparision Of Methanol Synthesis Units Using Different Raw-material Gas
Methanol that belongs in C1 chemicals is important to Country Economy and is used in vary chemical industry field. Methanol is get by the reaction of carbon monoxide,carbon dioxide with hydrogen. There are lots of material which are regarded as raw-material gas in methanol synthesis units,for example:coal and ramification,oil,natural-gas,biomass and so on..The text will introduce the development actuality about methanol synthesis units by using different raw-material gas which include coal, natural-gas,biomass. As we all nown,there are rigid demand for synthesis gas during methanol synthesis units, (H2-CO2)/(CO+CO2)2.1~2.15％,CO+H2>70％,CO22~10％,CH4+N2<3％,H2S<10 -5 ％.But defferent raw-material gas will produce different synthesis gas,so it is necessary to adopt different accommodation technics to meet the demand for synthesis gas. First,coal is one of the material that had been used to produce methanol for a long time.Coal which turns into coal gas at first is oxidated by air.The coal gas includes superfluous carbon monoxide ,then the carbon monoxide which translates hydrogen by transform,now we get a kind of mix gas .The third the mix gas turns into synthesis gas that meets the demand for synthesis methanol through removing superfluous carbon dioxide and sulfur.The last the synthesis gas turns into methanol by copper-catalyst and right reaction condition. Second, natural-gas is one of the material that are used to produce methanol now. natural-gas which turns into a kind of mix gas by condensation,getting rid of sulfur,translation.Then the mix gas turns into synthesis gas that meets the demand for synthesis methanol through filling-carbon or commutation. The last the synthesis gas turns into methanol by copper-catalyst and right reaction condition. Third, biomass is one of the material that will be used to produce methanol in the future.Biomass which turns into a kind of mix gas by rushing,gasification.Then the mix gas turns into synthesis gas that meets the demand for synthesis methanol through disoxidate,decoking,purfication,complex hydrogen. He last the synthesis gas turns into methanol by copper-catalyst and right reaction condition. We draw a conclusion that if you wants to manufacture methanol by using coal, natural-gas or biomass,you had better make sure a kind of material whose producing area is the nearer to your factory.
WANG li
The southwest Reserch ＆Design Institute Of Chemical Indusry,ChengDu 610225,China
国际会议
第四届中日化工学术研讨会(The 4th Joint China/Japan Chemical Engineering Symposium)(CJCES)
成都
英文
2007-12-19（万方平台首次上网日期，不代表论文的发表时间）