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公开(公告)号：US5507939A
公开(公告)日：1996-04-16
申请号：US303265
申请日：1994-09-08
CPC分类号： C10G61/06
摘要： A hydrocarbon feedstock is catalytically reformed to effect dehydrocyclization of paraffins in a process combination comprising a first reforming zone, a sulfur-removal zone containing a mixed reforming catalyst and sulfur sorbent comprising a manganese component to preclude sulfur from the feed to a second reforming zone. The process combination shows substantial benefits over prior art processes in achieving reforming-catalyst stability.
摘要翻译： 烃原料被催化重整以在包含第一重整区，含有混合重整催化剂的除硫区和含有锰组分的硫吸附剂的工艺组合中进行脱氢环化，以排除来自进料到第二重整区的硫。 该工艺组合在实现重整 - 催化剂稳定性方面显示出比现有技术方法显着的优点。
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公开(公告)号：US5300211A
公开(公告)日：1994-04-05
申请号：US998108
申请日：1992-12-29
申请人： Michael B. Russ , Roger L. Peer , Joseph Zmich , Chi-Chu D. Low
发明人： Michael B. Russ , Roger L. Peer , Joseph Zmich , Chi-Chu D. Low
CPC分类号： C10G61/06
摘要： A hydrocarbon feedstock is catalytically reformed to effect dehydrocyclization of paraffins in a process combination comprising a first reforming zone and a sulfur-removal zone utilizing a manganese component to preclude sulfur from the feed to a second reforming zone. The process combination shows substantial benefits over prior art processes in the stability of the extremely sulfur-sensitive catalyst utilized in the second reforming zone.
摘要翻译： 烃原料被催化重整以在包含第一重整区和除硫区的方法组合中使链烷烃脱氢环化，所述第一重整区和除硫区利用锰组分排除来自进料到第二重整区的硫。 在第二重整区中使用的极端敏感催化剂的稳定性方面，该方法组合显示出比现有技术方法显着的优点。
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公开(公告)号：US5399257A
公开(公告)日：1995-03-21
申请号：US159643
申请日：1993-11-30
摘要： Hydrocarbon conversion processes having a susceptibility to coke formation on the internal surfaces of processing equipment are improved by inhibiting the formation of coke with the use of a glass bead treatment for the metal surfaces. After treating with ordinary glass bead cleaning methods, metal surfaces are found to inhibit coke formation. The glass bead treatment is easily performed and, therefore, offers advantages over other chemical treatments for the deposition of silica on reactor internals.
摘要翻译： 通过使用用于金属表面的玻璃珠处理来抑制焦炭的形成，改进了对加工设备的内表面上的焦炭形成敏感性的烃转化方法。 在用普通玻璃珠清洗方法处理后，发现金属表面抑制焦炭形成。 玻璃珠处理容易进行，因此与其他化学处理相比，在二氧化硅沉积在反应器内部件上的优点。
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公开(公告)号：US5321184A
公开(公告)日：1994-06-14
申请号：US997831
申请日：1992-12-29
申请人： Chi-Chu D. Low , Randy J. Lawson , Paul J. Kuchar , Gail L. Gray
发明人： Chi-Chu D. Low , Randy J. Lawson , Paul J. Kuchar , Gail L. Gray
CPC分类号： C07C5/2702 , C07C5/2724
摘要： A pretreatment method for a C.sub.8 aromatic isomerization process wherein the isomerization catalyst is initially contacted with a C.sub.8 aromatic feedstock under high severity isomerization conditions for a period of time sufficient to deposit a substantial amount to carbonaceous material on the catalyst. After pretreatment, the carbon-laden catalyst continues to be contacted by the C.sub.8 aromatic feedstock under less severe conditions than that of the pretreatment mode of operation.
摘要翻译： 用于C8芳族异构化方法的预处理方法，其中异构化催化剂最初在高严重度异构化条件下与C8芳族原料接触一段足以在催化剂上沉积大量碳质材料的时间。 在预处理之后，碳载体催化剂在比预处理操作模式更恶劣的条件下继续与C8芳族原料接触。
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公开(公告)号：US5366614A
公开(公告)日：1994-11-22
申请号：US63284
申请日：1993-05-18
CPC分类号： C10G61/06
摘要： A hydrocarbon feedstock is catalytically reformed to effect dehydrocyclization of paraffins in a process combination comprising a first reforming zone containing a mixed reforming catalyst and sulfur sorbent and a sulfur-removal zone utilizing a manganese component to preclude sulfur from the feed to a second reforming zone. The process combination shows substantial benefits over prior art processes in achieving reforming-catalyst stability.
摘要翻译： 烃原料被催化重整以在包括含有混合重整催化剂和硫吸附剂的第一重整区和使用锰组分的除硫区域的工艺组合中进行脱氢环化以排除来自进料到第二重整区的硫。 该工艺组合在实现重整 - 催化剂稳定性方面显示出比现有技术方法显着的优点。
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公开(公告)号：US5211837A
公开(公告)日：1993-05-18
申请号：US842835
申请日：1992-02-27
申请人： Michael B. Russ , Roger L. Peer , Joseph Zmich , Chi-Chu D. Low
发明人： Michael B. Russ , Roger L. Peer , Joseph Zmich , Chi-Chu D. Low
IPC分类号： C10G61/06
CPC分类号： C10G61/06
摘要： A hydrocarbon feedstock is catalytically reformed to effect dehydrocyclization of paraffins in a process combination comprising a first reforming zone and a sulfur-removal zone utilizing a manganese component to preclude sulfur from the feed to a second reforming zone. The process combination shows substantial benefits over prior art processes in the stability of the extremely sulfur-sensitive catalyst utilized in the second reforming zone.
摘要翻译： 烃原料被催化重整以在包含第一重整区和除硫区的方法组合中使链烷烃脱氢环化，所述第一重整区和除硫区利用锰组分排除来自进料到第二重整区的硫。 在第二重整区中使用的极端敏感催化剂的稳定性方面，该方法组合显示出比现有技术方法显着的优点。
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公开(公告)号：US5003118A
公开(公告)日：1991-03-26
申请号：US459402
申请日：1989-12-29
CPC分类号： C10G65/08
摘要： The benzene content in a gasoline pool is reduced by a process that hydrogenates a benzene-containing isomerization zone feedstream. In addition to reducing the benzene concentration, the hydrogenation zone is also used to heat the isomerization zone feed and thereby eliminate the need for an isomerization zone heater. The process employs mild saturation conditions which eliminates hydrocracking and prevents the loss of isoparaffin yield. Additional cyclic hydrocarbons produced by the saturation of benzene can be processed in the isomerization zone for ring opening to increase the available paraffinic feedstock or the isomerization zone can be operated to pass the cyclic hydrocarbons through to a product recovery section.
摘要翻译： 通过使含苯异构化区进料流氢化的方法，汽油池中的苯含量降低。 除了降低苯浓度外，氢化区也用于加热异构化区进料，从而不需要异构化区加热器。 该方法采用温和的饱和条件，其消除加氢裂化并防止异构烷烃产率的损失。 通过饱和苯产生的附加环状烃可以在用于开环的异构化区中加工，以增加可用的链烷烃原料，或者异构化区域可以操作以将环状烃通过到产物回收部分。
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