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公开(公告)号：US4684756A
公开(公告)日：1987-08-04
申请号：US858620
申请日：1986-05-01
申请人： W. Rodman Derr, Jr. , William E. Garwood , James C. Kuo , Tiberiu M. Leib , Donald M. Nace , Samuel A. Tabak
发明人： W. Rodman Derr, Jr. , William E. Garwood , James C. Kuo , Tiberiu M. Leib , Donald M. Nace , Samuel A. Tabak
CPC分类号： C10L1/06 , C07C1/0485 , C10G2/32 , C10L1/04 , C10G2300/1022
摘要： The waxy liquid phase of an oil suspension of Fischer-Tropsch catalyst containing dissolved wax is separated out and the wax is converted by hydrocracking, dewaxing or by catalytic cracking with a low activity catalyst to provide a highly olefinic product which may be further converted to premium quality gasoline and/or distillate fuel.
摘要翻译： 分离含有溶解蜡的费 - 托催化剂的油悬浮液的蜡状液相，通过加氢裂化，脱蜡或用低活性催化剂进行催化裂化来转化蜡，以提供可进一步转化为优质的高烯烃产物 优质汽油和/或馏出燃料。
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公开(公告)号：US4990239A
公开(公告)日：1991-02-05
申请号：US449168
申请日：1989-12-13
摘要： High octane gasoline and high quality distillate are co-produced by a hydrocracking light cycle oil from a catalytic cracking process under conditions of low to moderate hydrogen pressure and severity to produce a high octane, hydrocracked gasoline. The distillate fraction from the hydrocracker is separated to form a first fraction which boils immediately above the gasoline fraction and a second, higher boiling fraction which is withdrawn as product. The first distillate fraction is recycled, preferably to extinction, to the cracker to increase the paraffinic content of the higher boiling distillate product by removal of the hydroaromatic components in the recycled fraction. The recycled fraction may be mixed with fresh feed to the cracker or may be injected at a higher level in the cracking riser as a secondary feed injection. The paraffinic distillate product has a low sulfur content and a high cetane index and is useful as a road diesel fuel.
摘要翻译： 高辛烷值汽油和高品质馏出物在低至中等氢气压力的条件下由催化裂化过程的加氢裂化轻循环油共同生产，并产生高辛烷值的加氢裂化汽油。 分离来自加氢裂化器的馏出物馏分以形成在汽油馏分之上立即沸腾的第一馏分和作为产物取出的第二较高沸点馏分。 将第一馏出物馏分再循环，优选灭火，从而通过除去再循环馏分中的水性芳族成分来提高高沸点馏出物产物的链烷烃含量。 回收的馏分可以与新鲜进料混合到裂化器中，或者可以作为二次进料注入在裂化提升管中以更高的水平注入。 石蜡馏分产物硫含量低，十六烷值高，可用作道路柴油。
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公开(公告)号：US4780193A
公开(公告)日：1988-10-25
申请号：US945254
申请日：1986-12-22
IPC分类号： C10G69/04
CPC分类号： C10G69/04
摘要： Catalytic cracking of hydrocarbon feedstocks is improved by hydrotreating the cracking feed under conditions of relatively low temperature, typically below 390.degree. C. for start-of-cycle, and high pressure, typically above 10,000 kPa, preferably above 12,000 kPa. The use of these conditions favors aromatics saturation to produce a cracking feed of improved crackability so that higher conversion is achieved in the cracking step at constant cracking conditions with production of naphtha of good octane quality. At the same time, desulfurization is achieved to maintain cracker SO.sub.x emissions at required levels; the advantages of high pressure operation are more notable at high denitrogenation severities while still achieving a low catalyst aging rate.
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公开(公告)号：US4985134A
公开(公告)日：1991-01-15
申请号：US433251
申请日：1989-11-08
摘要： High octane gasoline and high quality distillate are co-produced by a hydrocracking process in which a catalytic cracking light cycle oil is hydrocracked under conditions of low to moderate hydrogen pressure and severity to produce a high octane, hydrocracked gasoline. The distillate fraction which boils immediately above the gasoline fraction is recycled to the hydrocracker to increase the paraffinic content of this fraction by partial saturation and cracking of the aromatics contained in it so as to form a paraffinic distillate of low sulfur and high cetane index which is useful as a road diesel fuel. A higher boiling distillate fraction of relatively lower aromaticity may also be produced for use as a low sulfur fuel oil. The recycled fraction may be cooled to provide quench for the hydrocracker.
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