公开(公告)号：US3635038A

公开(公告)日：1972-01-18

申请号：US3635038D

申请日：1969-05-16

Applicant: BASF AG

Inventor： NAGEL OTTO ,  PLATZ ROLF ,  TAGLIEBER KURT ,  WEINFURTER KURT ,  WOLF DIETER

IPC: C07C7/00 ,  F25J3/02 ,  F25J1/00 ,  F25J3/00

CPC classification number: F25J3/0271 ,  C07C7/005 ,  F25J3/0219 ,  F25J3/0238 ,  F25J3/0242 ,  F25J2200/74 ,  F25J2205/04 ,  F25J2205/50 ,  F25J2210/12 ,  F25J2215/62 ,  F25J2245/02 ,  F25J2270/04 ,  F25J2270/12 ,  C07C11/24

Abstract: A gas mixture (obtained by thermal cracking of hydrocarbons followed by quenching of the cracked gas and freed from carbon dioxide and water) is separated into a gas mixture containing hydrogen, carbon monoxide and methane and another gas mixture containing ethylene, acetylene and higher hydrocarbons by (a) cooling the gas mixture which is at superatmospheric pressure in at least one condensation stage to a temperature which is above the solidification temperature of acetylene mixed with the other condensed constituents, (b) separating the condensate thus obtained and subdividing it in a rectifying column into a first mixture containing C2 hydrocarbons and a second mixture containing C3 and higher hydrocarbons, and (c) freeing the residual gas remaining from (a) from residual acetylene and ethylene in a scrubber by treatment with some of the mixture consisting of C3 and higher hydrocarbons from (b).

Abstract translation: 将气体混合物（通过烃的热裂化，然后淬灭裂化气体并从二氧化碳和水中除去）分离成含有氢气，一氧化碳和甲烷的气体混合物，以及含有乙烯，乙炔和高级烃的另一气体混合物 （a）在至少一个冷凝阶段将高于大气压的气体混合物冷却至高于其他冷凝组分混合的乙炔凝固温度的温度，（b）将由此获得的冷凝物分离，并将其细分为精馏 塔进入含有C 2烃和含有C 3和更高级烃的第二混合物的第一混合物，和（c）通过用一些由C 3和C 3组成的混合物处理将来自（a）残留的残余气体从残留的乙炔和乙烯中释出的第一混合物 （b）的高级烃。