公开(公告)号：US6093285A

公开(公告)日：2000-07-25

申请号：US144117

申请日：1998-08-31

申请人： Daniel T. Fernald ,  Stephen L. Ege ,  Si M. Nguyen ,  Richard Peacock ,  Larry L. Nash ,  George A. Moczygemba

发明人： Daniel T. Fernald ,  Stephen L. Ege ,  Si M. Nguyen ,  Richard Peacock ,  Larry L. Nash ,  George A. Moczygemba

IPC分类号： B01D3/14 ,  C07C7/04 ,  B01D3/00 ,  C07C51/44

CPC分类号： B01D3/14 ,  C07C7/04 ,  B01J2219/30 ,  Y10S203/20

摘要： A system and process for purifying a 1,3-butadiene feedstock containing 1,3-butadiene and various impurities by first introducing the 1,3-butadiene feedstock stream to a separation column to produce an intermediate product stream containing 1,3-butadiene and residual impurities and then introducing the produced intermediate product stream through a condenser to a suitable dryer for removing residual impurities from the intermediate product stream and thereby forming a purified 1,3-butadiene stream. The separation column separates an overhead stream, containing 1,3-butadiene and impurities such as propadiene, water and oxygen, and a bottoms stream, containing impurities such as polymerization inhibitor, ethyl acetylene, 1,3-butadiene dimer, pentane and 1,2-butadiene, from the intermediate product stream which leaves the separation column in the form of a vapor side draw stream.

摘要翻译： 一种用于纯化含有1,3-丁二烯和各种杂质的1,3-丁二烯原料的系统和方法，首先将1,3-丁二烯原料流引入分离塔以产生含有1,3-丁二烯和 然后将产生的中间产物流通过冷凝器引入合适的干燥器中，以从中间产物流中除去残留的杂质，从而形成纯化的1,3-丁二烯流。 分离塔分离含有1,3-丁二烯和杂质如丙二烯，水和氧的塔顶物流和含有杂质的底部物流，如阻聚剂，乙炔乙炔，1,3-丁二烯二聚物，戊烷和1， 来自以蒸气侧牵引流形式离开分离塔的中间产物流。

公开(公告)号：US5557029A

公开(公告)日：1996-09-17

申请号：US523978

申请日：1995-09-06

申请人： Fan-Nan Lin ,  Nak J. Sung ,  Stephen L. Ege ,  Thomas A. Lessard

发明人： Fan-Nan Lin ,  Nak J. Sung ,  Stephen L. Ege ,  Thomas A. Lessard

IPC分类号： C07C5/27 ,  C07C5/13

CPC分类号： C07C5/2724 ,  C07C2523/42 ,  C07C2529/24

摘要： In a process for isomerizing saturated C.sub.4- C.sub.10 hydrocarbons (preferably n-pentane) in the presence of a platinum/zeolite catalyst, wherein sulfur compounds are present in the feed as impurities and cause catalyst deactivating, at least one volatile chlorine compound (preferably tetrachloroethylene or carbon tetrachloride) is added to the feed in an amount sufficient to counteract the catalyst deactivation. A correlation between effective amounts of chloride additive(s) required to counteract the catalyst deactivating effect caused by specific sulfur compound(s) and a specific parameter of various sulfur compounds has been established. The water content in the isomerization feed is not to exceed about 60 ppm H.sub.2 O (based on the weight of the at least one feed hydrocarbons.

摘要翻译： 在铂/沸石催化剂存在下异构化饱和C 4 -C 10烃（优选正戊烷）的方法中，其中硫化合物作为杂质存在于进料中并引起催化剂失活，至少一种挥发性氯化合物（优选四氯乙烯 或四氯化碳）以足以抵消催化剂失活的量加入进料中。 已经确定了抵消由特定硫化合物引起的催化剂失活效应所需的氯化物添加剂的有效量与各种硫化合物的具体参数之间的相关性。 异构化进料中的水含量不超过约60ppm H 2 O（基于至少一种原料烃的重量）。