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公开(公告)号：US06072093A
公开(公告)日：2000-06-06
申请号：US187714
申请日：1998-11-06
CPC分类号： C07C2/08 , C07C11/02 , C07C2/18 , C07C9/22 , C07C2527/173
摘要： A process for the production of C.sub.8 and higher olefins by the oligomerization of light olefins to heavier olefins is improved by the addition of cycloparaffins to the oligomerization zone. The recycle of the cycloparaffins extends the catalyst activity and improves the catalyst life. Cyclohexane provides an excellent solvent for removing deposits from the catalyst with chemical inertness to the process and a boiling range that allows its essentially complete recovery when producing nonenes and higher olefins from propylene feeds.
摘要翻译： 通过在低聚区域中加入环烷烃，可以改善通过将轻质烯烃低聚成重质烯烃制备C8和高级烯烃的方法。 环烷烃的再循环延长了催化剂活性，提高了催化剂寿命。 环己烷提供了一种极好的溶剂，用于从催化剂中除去沉积物，对该方法具有化学惰性，沸点范围允许当从丙烯进料生产非烯烃和高级烯烃时，其基本上完全恢复。
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公开(公告)号：US5811608A
公开(公告)日：1998-09-22
申请号：US573315
申请日：1995-12-15
IPC分类号： B01J27/16 , C07B61/00 , C07C2/08 , C07C2/18 , C07C2/56 , C07C5/02 , C07C9/00 , C07C11/02 , C10G69/02 , C10G69/12 , C07C2/74 , C07C5/03
CPC分类号： C10G69/126 , C07C2/20 , C07C9/00 , C07C2527/173 , Y02P20/132
摘要： A process for the production of saturated oligomers by the oligomerization of light olefins to heavier olefins and the saturation of the heavy olefins is improved by the recycle of the heavy paraffins to the oligomerization zone. The recycle of the heavy paraffins improves the selectivity of the oligomerization for C.sub.8 paraffin products and reduces catalyst fouling. The reduced catalyst fouling can be used to operate the oligomerization zone at lower pressure and facilitate its integration with a dehydrogenation zone for the production of the light olefin stream.
摘要翻译： 通过将重质链烷烃再循环到低聚区，通过将轻质烯烃低聚成较重烯烃并使重质烯烃饱和来制备饱和低聚物的方法得到改善。 重链烷烃的再循环改善了C8烷烃产物的低聚选择性并减少催化剂结垢。 减少的催化剂结垢可用于在较低压力下操作低聚区，并促进其与用于生产轻质烯烃流的脱氢区的一体化。
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公开(公告)号：US06284938B1
公开(公告)日：2001-09-04
申请号：US09467701
申请日：1999-12-20
IPC分类号： C07C218
CPC分类号： C07C2/18 , C07C2/08 , C07C9/22 , C07C11/02 , C07C2527/173
摘要： A process for the production of C8 and higher carbon number alkene oligomers by the oligomerization of light olefins to heavier olefins is improved by the addition of heavy paraffins to the oligomerization zone. The recycle of the heavy paraffins extends the catalyst activity and improves the catalyst life. The non-reactive paraffin stream may be recycled through the process with minimal losses and make-up.
摘要翻译： 通过在低聚区域中加入重质链烷烃，可以改善通过将轻质烯烃低聚成重质烯烃制备C8和更高碳数的烯烃低聚物的方法。 重链烷烃的再循环延长了催化剂活性，提高了催化剂寿命。 非反应性石蜡流可以通过该方法循环使用，具有最小的损失和补充。
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公开(公告)号：US5990367A
公开(公告)日：1999-11-23
申请号：US187699
申请日：1998-11-06
CPC分类号： C07C2/08 , C07C11/02 , C07C2/18 , C07C9/22 , C07C2527/173
摘要： A process for the production of C.sub.8 and higher olefins by the oligomerization of light olefins to heavier olefins is improved by the addition of heavy paraffins to the oligomerization zone. The recycle of the heavy paraffins extends the catalyst activity and improves the catalyst life.
摘要翻译： 通过在低聚区域中加入重质链烷烃，可以提高通过轻质烯烃向较重烯烃的低聚制备C8和高级烯烃的方法。 重链烷烃的再循环延长了催化剂活性，提高了催化剂寿命。
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公开(公告)号：US5895830A
公开(公告)日：1999-04-20
申请号：US990828
申请日：1997-12-15
CPC分类号： C07C9/22 , C07C11/02 , C07C2/08 , C07C2/18 , C07C2527/173
摘要： A process for the production of C.sub.8 alkene isomers by the oligomerization of light olefins to heavier olefins is improved by the addition of heavy paraffins to the oligomerization zone. The recycle of the heavy paraffins improves the selectivity of the oligomerization for C.sub.8 olefin isomers that have a high octane number when saturated and reduces catalyst fouling. The saturated octane number of the resulting C.sub.8 isomers is particularly improved when the oligomerization zone is operated at reduced temperature conditions.
摘要翻译： 通过在低聚区域中加入重质链烷烃，可以改善通过将轻质烯烃低聚成重质烯烃制备C8烯烃异构体的方法。 重链烷烃的再循环改善了当饱和时具有高辛烷值并降低催化剂结垢的C8烯烃异构体的低聚选择性。 当低温区在降低的温度条件下运行时，所得的C8异构体的饱和辛烷值特别提高。
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公开(公告)号：US6080903A
公开(公告)日：2000-06-27
申请号：US187263
申请日：1998-11-06
CPC分类号： C07C2/18 , C07C11/02 , C07C2/08 , C07C9/22 , C07C2527/173
摘要： A process for the production of C.sub.8 and higher carbon number alkene oligomers by the oligomerization of light olefins to heavier olefins is improved by the addition of heavy paraffins to the oligomerization zone. The recycle of the heavy paraffins extends the catalyst activity and improves the catalyst life. The non-reactive paraffin stream may be recycled through the process with minimal losses and make-up.
摘要翻译： 通过在低聚区域中加入重质链烷烃，可以改善通过将轻质烯烃低聚成重质烯烃制备C8和更高碳数的烯烃低聚物的方法。 重链烷烃的再循环延长了催化剂活性，提高了催化剂寿命。 非反应性石蜡流可以通过该方法循环使用，具有最小的损失和补充。
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公开(公告)号：US5273646A
公开(公告)日：1993-12-28
申请号：US963193
申请日：1992-10-19
CPC分类号： B01J31/0239 , B01J31/183 , B01J2231/70 , B01J2531/025 , B01J2531/845
摘要： This invention relates to a process for improving the activity of a catalyst effective in sweetening a hydrocarbon fraction containing mercaptans. The process involves adding to the hydrocarbon fraction an effective amount of an aqueous solution comprising ammonium hydroxide, a metal chelate and an onium compound.
摘要翻译： 本发明涉及一种改善催化剂活性的方法，该催化剂有效地使含有硫醇的烃馏分变甜。 该方法包括向烃馏分中加入有效量的包含氢氧化铵，金属螯合物和鎓化合物的水溶液。
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8.发明授权Caustic free liquid/liquid process for sweeting a sour hydrocarbon fraction 失效无碱液体/液体工艺，用于酿造酸性碳氢化合物馏分
公开(公告)号：US5180484A
公开(公告)日：1993-01-19
申请号：US799798
申请日：1991-11-29
CPC分类号： B01J31/0239 , B01J31/122 , B01J31/183 , C10G27/10 , B01J2231/70 , B01J2531/025 , B01J2531/845
摘要： This invention relates to a liquid-liquid process for treating a sour hydrocarbon fraction. The process comprises contacting the hydrocarbon fraction in the presence of an oxidizing agent with an aqueous solution containing ammonium hydroxide, a metal chelate and an onium compound selected from the group consisting of quaternary ammonium, phosphonium, arsonium, stibonium, oxonium and sulfonium compounds. A preferred onium compound is a quaternary ammonium compound with an especially preferred compound being a quaternary ammonium halide.
摘要翻译： 本发明涉及一种用于处理酸性烃馏分的液 - 液方法。 该方法包括在氧化剂存在下将烃馏分与含有氢氧化铵的水溶液，金属螯合物和选自季铵，鏻，砷，锑，氧鎓和锍化合物的鎓化合物接触。 优选的鎓化合物是季铵化合物，特别优选的化合物是季铵卤化物。
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9.发明授权Caustic free liquid/liquid process for sweetening a sour hydrocarbon fraction 失效无酸液体/液体方法，用于使酸性烃馏分变甜
公开(公告)号：US5093296A
公开(公告)日：1992-03-03
申请号：US572824
申请日：1990-08-27
CPC分类号： B01J31/0239 , B01J31/183 , B01J2531/025 , B01J2531/845
摘要： This invention relates to a liquid-liquid process for treating a sour hydrocarbon fraction. The process comprises contacting the hydrocarbon fraction in the presence of an oxidizing agent with an aqueous solution containing ammonium hydroxide, a metal chelate and an onium compound selected from the group consisting of quaternary ammonium, phosphonium, arsonium, stibonium, oxonium and sulfonium compounds. A preferred onium compound is a quaternary ammonium compound with an especially preferred compound being a quaternary ammonium halide. This invention also relates to a catalyst comprising an aqueous solution containing ammonium hydroxide, a metal chelate and an onium compound, for oxidizing mercaptans contained in a sour hydrocarbon fraction. The aqueous solution which is the catalyst can also be used to improve the activity of a fixed bed mercaptan oxidation catalyst.
摘要翻译： 本发明涉及一种用于处理酸性烃馏分的液 - 液方法。 该方法包括在氧化剂存在下将烃馏分与含有氢氧化铵的水溶液，金属螯合物和选自季铵，鏻，砷，锑，氧鎓和锍化合物的鎓化合物接触。 优选的鎓化合物是季铵化合物，特别优选的化合物是季铵卤化物。 本发明还涉及包含含有氢氧化铵的水溶液，金属螯合物和鎓化合物的催化剂，用于氧化含在酸性烃馏分中的硫醇。 作为催化剂的水溶液也可用于提高固定床硫醇氧化催化剂的活性。
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10.发明授权
公开(公告)号：US5064525A
公开(公告)日：1991-11-12
申请号：US657013
申请日：1991-02-19
IPC分类号： B01J23/755 , B01J21/16 , B01J31/02 , B01J31/22 , C10G27/06 , C10G27/10 , C10G45/06 , C10G45/08 , C10G67/12
摘要： This invention relates to a process for sweetening a sour hydrocarbon fraction. The process involves two steps. In one step the mercaptans in the sour hydrocarbon fraction are reacted with hydrogen in the presence of a selective hydrogenolysis catalyst to selectively hydrogenolyse the tertiary mercaptans. In another step, the mercaptans are oxidized by reacting them with an oxidizing agent in the presence of oxidation catalyst and a basic component. The selective hydrogenolysis step and the oxidation step may be carried out in any order, i.e., either hydrogenolysis first followed by oxidation or vice versa.
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