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1.发明授权
公开(公告)号：US6013852A
公开(公告)日：2000-01-11
申请号：US176080
申请日：1998-10-20
CPC分类号： C10G55/04
摘要： Producing light olefins from a contaminated liquid hydrocarbon feed by means of thermal cracking of, which process comprises the steps of supplying the feed (6) to the inlet (7) of a membrane unit (1) provided with a polysiloxane membrane (10), and removing from the permeate side (9) a permeate (14) and from the retentate side (8) a retentate (12); supplying the permeate (14) to the inlet of a cracking furnace (2), allowing the permeate to crack in the coils (15, 16) of the cracking furnace (2) in the presence of steam (17) at elevated temperature and removing from the cracking furnace (2) a cracked stream (19) which is enriched in light olefins; quenching (22, 24) the cracked stream; supplying the cooled cracked stream to a fractionation column (3); supplying the retentate (12) to the fractionation column (3); and removing from the fractionation column (3); a gaseous stream (30), a side stream of fuel oil components (45) and a bottom stream (50).
摘要翻译： 通过热裂解从污染的液体烃进料中产生轻质烯烃，该方法包括以下步骤：将进料（6）供应到设置有聚硅氧烷膜（10）的膜单元（1）的入口（7） 从所述渗透侧（9）除去渗透物（14）和从所述渗余物侧（8）脱离渗余物（12）; 将渗透物（14）供应到裂解炉（2）的入口，允许渗透物在升高的温度下在蒸汽（17）的存在下在裂解炉（2）的线圈（15,16）中裂开，并且除去 裂解炉（2）是富含轻质烯烃的裂化物流（19）; 骤冷（22,24）破裂流; 将冷却的裂化流供应到分馏塔（3）; 将所述保留物（12）供应到所述分馏塔（3）中; 并从分馏塔（3）中除去; 气流（30），燃料油组分（45）的侧流和底流（50）。
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公开(公告)号：US5962763A
公开(公告)日：1999-10-05
申请号：US176081
申请日：1998-10-20
CPC分类号： C10G7/00 , C10G31/11 , Y10S203/20
摘要： A method of distilling a crude oil and a contaminated liquid stream in an atmospheric distillation column (2) comprising the steps of (a) heating (13, 15) the crude oil at atmospheric pressure and introducing the heated crude oil into the inlet section (10) of the column (2); (b) removing from bottom a residue (19), removing from the top an overhead (20) and removing from the rectification section (7) at least one side stream (26, 28); (c) cooling (13) one of the side streams (28) and introducing the cooled side stream (29) into the rectification section (7) and partly condensing (21) the overhead (20) and introducing the condensed fraction (24) into the upper end of the distillation column (2); (d) supplying the contaminated liquid stream (40) to a membrane unit (3) provided with a suitable membrane (33), and removing a permeate (37) and a retentate (36); and (e) introducing the permeate (37) into the rectification section (7) and adding the retentate (36) to the crude oil (11) upstream of the furnace (1).
摘要翻译： 一种在常压蒸馏塔（2）中蒸馏原油和污染的液体物流的方法，包括以下步骤：（a）在大气压下加热（13,15）原油并将加热的原油引入入口部分 10）; （b）从底部除去残余物（19），从塔顶（20）的顶部排出并从精馏段（7）除去至少一个侧流（26,28）; （c）冷却（13）一个侧流（28）并将冷却的侧流（29）引入精馏段（7）并部分冷凝（21）塔顶馏出物（20）并引入冷凝馏分（24） 进入蒸馏塔（2）的上端; （d）将污染的液体流（40）供应到设置有合适膜（33）的膜单元（3），以及去除渗透物（37）和渗余物（36）; 和（e）将渗透物（37）引入精馏段（7）中，并将滞留物（36）加入炉（1）上游的原油（11）。
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