发明名称 |
PROCESS FOR THE PRODUCTION OF LOW-CONCENTRATION ETHYLENE FOR CHEMICAL USE |
摘要 |
<p>Process for the production of ethylene for chemical use starting with a hydrocarbon source according to which :
a) the hydrocarbon source is subjected to a first cracking step, namely a pyrolysis step carried out in a cracking oven, thus producing a mixture of cracking products ;
b) the said mixture of cracking products is subjected to a succession of treatment steps, including a compression step, which makes it possible to obtain a purified crude gas stream;
c) the purified crude gas stream is then cooled to a temperature where hydrocarbons with 6 and more carbon atoms condense so that they can be removed from the purified crude gas stream ;
d) the resulting purified gas stream is afterwards supplied to one separating column, where a fraction containing hydrogen, methane and ethylene (fraction A) is separated at the head of the column and a heavy fraction (fraction C) is separated at the bottom of the column ;
e) a part of the reflux of this column is supplied to a refrigeration cycle leading to a fraction enriched with ethylene (fraction B) ;
f) fraction A and fraction B are separately supplied to chemical use of ethylene.</p> |
申请公布号 |
EP2294037(A2) |
申请公布日期 |
2011.03.16 |
申请号 |
EP20090757458 |
申请日期 |
2009.05.28 |
申请人 |
SOLVAY (SOCIETE ANONYME) |
发明人 |
KOTTER, JOACHIM;WINKLER, HANS-DIETER;MEWS, PETER;LEMPEREUR, MICHEL;BALTHASART, DOMINIQUE;STREBELLE, MICHEL |
分类号 |
C07C11/04;C10G9/00;C10G65/04;C10G70/04 |
主分类号 |
C07C11/04 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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