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The Design Of Methanol Process Of 150kt/a

Posted on:2018-08-17Degree:MasterType:Thesis
Country:ChinaCandidate:L BianFull Text:PDF
GTID:2321330542977924Subject:Chemical engineering
Abstract/Summary:PDF Full Text Request
Among basic organic chemical raw materials in the world,methanol,second only to ethylene propylene and benzene,plays an important role in chemical production.Coke oven gas to methanol synthesis is an emerging industry of modern industry.Methanol has already been applied widely in many industries.It can be used to produce formaldehyde,acetic acid and a series of chemical products.It is also a new generation of important energy and basic chemical raw material,which can be added to gasoline blended with gasoline for power or an alternative fuel and used to produce methanol protein.It is now second only to olefins and aromatics in the basic organic products.At present,China's output of coke is ranked first in the world,and the large-scale coke oven gas production will face a very important problem of coke oven gas outlet.If a large amount of coke oven gas emissions into the atmosphere,it will cause serious air pollution,and that will also waste this valuable chemical resources.If it is used to generate electricity,that will not only be costly,but also make this chemical resources not rationally and efficiently used.In this context,combined with the market economy,the environment and other factors,producing methanol with coke oven gas can not only solve coke oven gas but also turn waste into treasure.Coke oven gas to methanol to coal chemical residual gas as raw material,coke oven gas purification to remove tar,naphthalene,benzene extraction eluting benzene,ammonium sulfate and desulfurization section to get a clean coke oven gas into the methanol system.Coke oven gas in methanol system through gas desulfurization removal of organic and inorganic sulfur into the reformer gas at high temperatures react with oxygen to generate transformation,transformation after compressor pressurized gas into the synthesis reactor under high temperature and pressure to generate rough methanol and extracted in methanol distillation.This article is mainly to solve the problem of limited space construction site in terms of the production process?site layout?equipment selection and other aspects.Production of the early sulfide reduction catalyst,the ratio of the initial production of coke oven gas,oxygen,water vapor and the amount of conversion of methane-containing gas are required by the process control instructions.
Keywords/Search Tags:Extract, Pufify, Desulfurization, Fine Desulfurization Reforming gas, Compound, oke oven gas
PDF Full Text Request
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