公开(公告)号：US4774375A

公开(公告)日：1988-09-27

申请号：US131886

申请日：1987-12-11

申请人： Harold U. Hammershaimb ,  Joel B. Spinner

发明人： Harold U. Hammershaimb ,  Joel B. Spinner

IPC分类号： C10G69/12 ,  B01J27/12 ,  C07B61/00 ,  C07C1/00 ,  C07C2/62 ,  C07C5/05 ,  C07C9/14 ,  C07C9/16 ,  C07C67/00 ,  C10G45/36 ,  C10G50/00 ,  C07C5/00 ,  C07C2/58

CPC分类号： C07C2/62 ,  C07C9/16 ,  C07C2527/1206

摘要： A process using selective hydrogenation and HF alkylation in combination that employs a multifunction alkylation stripper for removal of light ends from the selective hydrogenation and a alkylation operations. The process combines the effluent from the selective hydrogenation operation, an isobutane feed stream and a bottoms stream from the HF stripper in the alkylation feed stripper. The feed stripper provides a C.sub.4 -plus bottoms stream that serves as the feed to the alkylation zone and a C.sub.3 -minus overhead that can be recovered as fuel gas. Significant benefit is obtained from this process when processing a mixed olefin feed of C.sub.3 /C.sub.4 hydrocarbons and recovering a high purity C.sub.3 product stream ahead of the selective hydrogenation zone. Another variation of this process allows a C.sub.3 product stream to be withdrawn from the alkylation feed stripper either directly as a sidecut or downstream of an overhead condensor.

公开(公告)号：US4463205A

公开(公告)日：1984-07-31

申请号：US529055

申请日：1983-09-02

申请人： Joel B. Spinner

发明人： Joel B. Spinner

IPC分类号： B01J27/12 ,  C07B61/00 ,  C07C1/00 ,  C07C2/70 ,  C07C7/04 ,  C07C15/02 ,  C07C15/107 ,  C07C67/00 ,  C07C2/66

CPC分类号： C07C15/107 ,  C07C7/04

摘要： A process is disclosed for the production of alkylaromatic hydrocarbons by the alkylation of an aromatic hydrocarbon, such as benzene, with a C.sub.8 -plus acyclic olefin which preferably is a normal olefin. The hydrocarbonaceous effluent of the alkylation reaction zone is separated by fractional distillation to yield both a product stream containing monoalkylated aromatics and a small bottoms stream containing dialkylated aromatics and other high boiling compounds but which is substantially devoid of the product monoalkylated aromatics. The product stream is a portion of a sidecut stream withdrawn from the first of two vacuum columns, with a second portion of the sidecut being passed into the second column. The bottoms stream of the first column is also passed into the second column and the overhead vapor of the second column enters an upper portion of the first column.

摘要翻译： 公开了通过使用优选为正链烯烃的C8加无环烯烃将芳族烃如苯等烷基化生产烷基芳烃的方法。 通过分馏分离烷基化反应区的烃流出物，以产生含有单烷基化芳族化合物的产物流和含有二烷基化芳族化合物和其它高沸点化合物但基本上不含产物单烷基化芳族化合物的小底部物流。 产物流是从两个真空塔中的第一个排出的侧流的一部分，其中第二部分进入第二塔。 第一塔的塔底物流也被送入第二塔，第二塔的塔顶蒸气进入第一塔的上部。