-
1.发明申请ADSORBENT AND PROCESS FOR THE SEPARATION OF META-XYLENE FROM AROMATIC HYDROCARBONS 有权从芳香烃分离甲基 - 二甲苯的吸附剂和方法公开(公告)号：US20090326310A1
公开(公告)日：2009-12-31
申请号：US12165266
申请日：2008-06-30
IPC分类号： C07C7/12
CPC分类号： B01J20/28004 , B01J20/183 , B01J20/186 , B01J20/28007 , B82Y30/00 , C07C7/13 , C07C15/08
摘要： Adsorbents and methods for the adsorptive separation of meta-xylene from a mixture containing at least one other C8 aromatic hydrocarbon (e.g., a mixture of ortho-xylene, meta-xylene, para-xylene, and ethylbenzene) are described. Suitable adsorbents comprise sodium zeolite Y having an average crystallite size from about 50 to about 700 nanometers. The adsorbents provide improved separation efficiency, which may be associated with a higher meta-xylene mass transfer rate and/or other beneficial effects. Exemplary desorbents for use in the process may comprise toluene, benzene, or indan.
摘要翻译： 描述了从含有至少一种其它C 8芳族烃（例如邻二甲苯，间二甲苯，对二甲苯和乙苯的混合物）的混合物吸附分离间二甲苯的吸附剂和方法。 合适的吸附剂包括具有约50至约700纳米的平均微晶尺寸的钠沸石Y。 吸附剂提供改进的分离效率，其可能与较高的间二甲苯质量传递速率和/或其他有益效果相关。 用于该方法的示例性脱附剂可包括甲苯，苯或茚满。
-
2.发明授权公开(公告)号：US07728187B2
公开(公告)日：2010-06-01
申请号：US12165266
申请日：2008-06-30
IPC分类号： C07C7/12
CPC分类号： B01J20/28004 , B01J20/183 , B01J20/186 , B01J20/28007 , B82Y30/00 , C07C7/13 , C07C15/08
摘要： Adsorbents and methods for the adsorptive separation of meta-xylene from a mixture containing at least one other C8 aromatic hydrocarbon (e.g., a mixture of ortho-xylene, meta-xylene, para-xylene, and ethylbenzene) are described. Suitable adsorbents comprise sodium zeolite Y having an average crystallite size from about 50 to about 700 nanometers. The adsorbents provide improved separation efficiency, which may be associated with a higher meta-xylene mass transfer rate and/or other beneficial effects. Exemplary desorbents for use in the process may comprise toluene, benzene, or indan.
摘要翻译： 描述了从含有至少一种其它C 8芳族烃（例如邻二甲苯，间二甲苯，对二甲苯和乙苯的混合物）的混合物吸附分离间二甲苯的吸附剂和方法。 合适的吸附剂包括具有约50至约700纳米的平均微晶尺寸的沸石Y。 吸附剂提供改进的分离效率，其可能与较高的间二甲苯质量传递速率和/或其他有益效果相关。 用于该方法的示例性脱附剂可包括甲苯，苯或茚满。
-
公开(公告)号：US20130116495A1
公开(公告)日：2013-05-09
申请号：US13292713
申请日：2011-11-09
IPC分类号： C07C7/12
CPC分类号： C07C7/12 , B01D15/1828 , Y02P20/123 , Y02P20/57 , C07C15/08
摘要： The present process comprises a means for energy savings in one or more process pumps by driving the one or more pumps with a variable-speed driving means. The invention is particularly useful in the separation of an adsorbed product from a mixture of components using simulated-moving-bed adsorption associated with a large circulating stream pumped with variable-speed driving means for conservation of energy relative to the known art. The improvement is particularly applicable to a process for the separation of para-xylene from mixed C8 aromatics.
摘要翻译： 本方法包括通过用变速驱动装置驱动一个或多个泵来在一个或多个处理泵中节能的装置。 本发明特别可用于使用与用已知技术节约能源的可变速度驱动装置泵送的大循环流相关联的模拟移动床吸附分离吸附产物与组分混合物。 该改进特别适用于从混合的C8芳族化合物中分离对二甲苯的方法。
-
公开(公告)号：US20130012746A1
公开(公告)日：2013-01-10
申请号：US13616915
申请日：2012-09-14
申请人： Charles P. Luebke , Stanley J. Frey
发明人： Charles P. Luebke , Stanley J. Frey
CPC分类号： C10G45/04 , C10G3/50 , C10G3/60 , C10G2300/1014 , C10G2300/1018 , C10G2300/4081 , C10G2400/02 , C10G2400/04 , C10G2400/08 , Y02P30/20
摘要： A process has been developed for producing fuel from renewable feedstocks such as plant and animal oils and greases. The process involves treating a first portion of a renewable feedstock by hydrogenating and deoxygenating in a first reaction zone and a second portion of a renewable feedstock by hydrogenating and deoxygenating in a second reaction zone to provide a diesel boiling point range fuel hydrocarbon product. If desired, the hydrocarbon product can be isomerized to improve cold flow properties. A portion of the hydrocarbon product is recycled to the first reaction zone to increase the hydrogen solubility of the reaction mixture.
摘要翻译： 已经开发了用于从可再生原料如植物油和动物油和油脂生产燃料的方法。 该方法包括通过在第二反应区中通过氢化和脱氧来在第一反应区和第二部分可再生原料中进行氢化和脱氧处理可再生原料的第一部分以提供柴油沸点范围的燃料烃产物。 如果需要，烃产物可被异构化以改善冷流动性能。 一部分烃产物再循环到第一反应区以提高反应混合物的氢溶解度。
-
公开(公告)号：US08283509B2
公开(公告)日：2012-10-09
申请号：US12630195
申请日：2009-12-03
申请人： Paul A. Sechrist , Stanley J. Frey
发明人： Paul A. Sechrist , Stanley J. Frey
IPC分类号： C07C7/04
摘要： The invention comprises an absorption heat pump to supply energy to a distillation process or an outside process. The streams used to effect the absorption heat pump are to be combined in any case as a feedstream to a conversion process, and energy thus is conserved by avoiding the necessity of reseparating the streams.
摘要翻译： 本发明包括一个用于向蒸馏过程或外部过程供应能量的吸收式热泵。 用于影响吸收式热泵的流在任何情况下都将作为进料流组合到转化过程中，因此通过避免重新分离流的需要来节省能量。
-
6.发明授权Process for separating para-xylene from a mixture of C8 and C9 aromatic hydrocarbons 有权从C8和C9芳烃的混合物中分离对二甲苯的方法公开(公告)号：US08198502B2
公开(公告)日：2012-06-12
申请号：US12719410
申请日：2010-03-08
申请人： Leonid Bresler , Stanley J. Frey
发明人： Leonid Bresler , Stanley J. Frey
IPC分类号： C07C7/13
摘要： The invention is an adsorptive separation process for producing a para-xylene product from a feed stream comprising para-xylene, at least one other C8 aromatic, and a C9 aromatic. An adsorbent comprising X or Y zeolite and a desorbent comprising para-diethylbenzene (p-DEB) are used in an adsorptive separation zone to produce an extract stream comprising para-xylene, p-DEB, and the C9 aromatic and a raffinate stream comprising the at least one other C8 aromatic, the C9 aromatic, and p-DEB. The extract stream is separated in an extract distillation zone to produce a second desorbent stream comprising the C9 aromatic and p-DEB and the raffinate stream is separated in a raffinate distillation zone to produce a third desorbent stream comprising the C9 aromatic and p-DEB. At least a portion of at least one of the second desorbent stream and the third desorbent stream is further separated in a desorbent distillation zone to produce a stream comprising the C9 aromatic.
摘要翻译： 本发明是用于从包含对二甲苯，至少一种其它C 8芳族和C 9芳族的进料流产生对二甲苯产物的吸附分离方法。 包含X或Y沸石的吸附剂和包含对二乙基苯（p-DEB）的解吸剂用于吸附分离区，以产生包含对二甲苯，p-DEB和C9芳族化合物的萃取物料流和含有 至少一种其它C 8芳族，C 9芳族和p-DEB。 萃取物流在提取蒸馏区中分离以产生包含C 9芳族和p-DEB的第二解吸流，并且萃余物流在萃余液蒸馏区中分离以产生包含C 9芳族和p-DEB的第三解吸流。 第二解吸流和第三解吸流中的至少一个的至少一部分在解吸蒸馏区进一步分离以产生包含C 9芳族的物流。
-
公开(公告)号：US07368619B1
公开(公告)日：2008-05-06
申请号：US10868118
申请日：2004-06-15
申请人： Stanley J. Frey , Vasant P. Thakkar
发明人： Stanley J. Frey , Vasant P. Thakkar
CPC分类号： C07C6/126 , C07C2529/89 , C10G2400/30 , C07C15/08
摘要： A process for the production of low sulfur diesel and aromatic compounds wherein C9+ hydrocarbons are hydrocracked to produce low sulfur diesel and a naphtha boiling range stream which is transalkylated in an integrated transalkylation zone to produce xylene.
摘要翻译： 一种生产低硫柴油和芳族化合物的方法，其中C 9+烃被加氢裂化以产生低硫柴油和在一体化烷基转移区中烷基转移以产生二甲苯的石脑油沸程流。
-
公开(公告)号：US6107526A
公开(公告)日：2000-08-22
申请号：US99163
申请日：1998-06-18
CPC分类号： C07C41/42 , C07C41/06 , Y02P20/127
摘要： A catalytic distillation process for producing high purity ethyl tertiary butyl ether that contains less than 0.6 weight percent ethanol, and preferably less than 0.07 weight percent ethanol, has been developed. The high purity ethyl tertiary butyl ether is withdrawn directly from a catalytic distillation column; no downstream processing is necessary to remove excess ethanol from the ether product. A stream containing largely normal butane is generated by a C.sub.4 distillation column along with a stream containing isobutane. The stream containing isobutane is dehydrogenated to form a stream containing isobutylene. Ethanol, the stream containing isobutylene, and the stream containing largely normal butane are introduced to an etherification zone containing a catalytic distillation column. The catalytic distillation column is operated under conditions which result in the reaction of the ethanol with the isobutylene to form ethyl tertiary butyl ether. Excess ethanol forms an azeotrope with the normal butane and is distilled with other hydrocarbons into an overhead stream. The ethyl tertiary butyl ether and no more than 0.6 weight percent ethanol are distilled into a bottoms stream and withdrawn directly from the catalytic distillation column.
摘要翻译： 已经开发了用于生产含有小于0.6重量％乙醇，优选小于0.07重量％乙醇的高纯度乙基叔丁基醚的催化蒸馏方法。 高纯度乙基叔丁基醚直接从催化蒸馏塔中取出; 不需要下游处理来从醚产物中除去过量的乙醇。 含有大量正丁烷的料流是由C4蒸馏塔和含有异丁烷的料流产生的。 含有异丁烷的物流被脱氢以形成含有异丁烯的物流。 将含有异丁烯的物流和含有大量正丁烷的物流引入含有催化蒸馏塔的醚化区。 催化蒸馏塔在乙醇与异丁烯反应形成乙基叔丁基醚的条件下运行。 过量的乙醇与正丁烷形成共沸物，并与其他烃一起蒸馏成塔顶物流。 将乙基叔丁基醚和不超过0.6重量％的乙醇蒸馏到塔底物流中，直接从催化蒸馏塔中取出。
-
9.发明授权Process for removal of impurities from light paraffin isomerization feedstocks 失效从轻链烷烃异构化原料中除去杂质的方法
公开(公告)号：US5689033A
公开(公告)日：1997-11-18
申请号：US642092
申请日：1996-05-02
申请人： Paulino Forte , Stanley J. Frey
发明人： Paulino Forte , Stanley J. Frey
摘要： A process is directed to the removal of impurities such as sulfur compounds, oxygenates, and/or olefins from a light paraffin hydrocarbon feedstock such as a C.sub.4 -C.sub.6 fraction, which may be used subsequently in an isomerization process in an integrated complex for the production of ethers such as MTBE and TAME. The hydrocarbon feedstream is passed to a removal zone wherein the hydrocarbon feedstream is contacted with a selective solvent for the removal of the impurities comprising at least one of sulfur compounds, oxygenates and olefins to provide a rich solvent stream and a treated hydrocarbon stream. The rich solvent comprising the trace impurities is contacted with a stripping medium stream to regenerate the selective solvent in a stripping zone. The removal zone may be a liquid-liquid extraction zone or a gas absorption zone. The selective solvent comprises a water miscible organic liquid having a low molecular weight preferably less than about 400 and more preferably having a molecular weight of less than about 200. The process is particularly useful in removing impurities such as sulfur, oxygenates and/or olefins which are harmful to the isomerization catalyst. The process replaces separate olefins, oxygenate, and sulfur removal processes resulting in simplified processing schemes.
摘要翻译： 一种方法是从轻链烷烃原料如C4-C6馏分中除去杂质如硫化合物，含氧化合物和/或烯烃，其可以随后在用于生产的综合复合物中的异构化方法中使用 的醚类，如MTBE和TAME。 将烃进料流输送到去除区，其中烃进料流与选择性溶剂接触以除去包含硫化合物，含氧化合物和烯烃中的至少一种的杂质，以提供富溶剂流和经处理的烃流。 将包含微量杂质的富溶剂与汽提介质流接触以在汽提区再生出选择性溶剂。 去除区可以是液 - 液萃取区或气体吸收区。 选择性溶剂包括低分子量优选小于约400且更优选分子量小于约200的水混溶性有机液体。该方法特别可用于除去诸如硫，含氧物和/或烯烃的杂质， 对异构化催化剂有害。 该方法代替单独的烯烃，含氧化合物和除硫过程，从而导致简化的处理方案。
-
公开(公告)号：US5621150A
公开(公告)日：1997-04-15
申请号：US429402
申请日：1995-04-26
申请人： Henry Rastelli , Carmen M. Yon , Stanley J. Frey
发明人： Henry Rastelli , Carmen M. Yon , Stanley J. Frey
CPC分类号： C07C41/36
摘要： The present invention relates to a cyclic process for the preparation of ethyl tert.-alkyl ethers by the reaction of an alcohol, such as ethanol, with an iso-olefin such as isobutylene or isoamylene wherein an effluent from the reaction zone is first separated in a distillation column to provide an overhead effluent stream and a bottoms effluent stream comprising ethyl tert.-alkyl ether and unreacted ethanol, and the ether product is passed to an adsorption zone to remove the unreacted ethanol. When the reaction occurs in the presence of water, a tert. alcohol (e.g., TBA or TAA) is produced and, if returned to the reaction zone, the tertiary alcohol builds up in the process and reduces efficiency. An adsorbent selected from the group consisting of zeolite 13X, silica-bonded silicalite, an alkali-exchanged zeolite with an MFI structure having a silica/alumina ratio greater than 20 and mixtures thereof is employed in an adsorption zone to remove the unreacted ethanol from the ether product to provide ether product essentially free of ethanol and comprising the tertiary alcohol. Thus, the tertiary alcohol is removed with the ether product as a high octane, oxygenate blending component for reformulated gasoline with a low vapor pressure. The invention is useful in recovering unreacted ethanol from the other product stream and returning the unreacted ethanol to the reaction zone without returning TBA. The invention prevents the build-up of tertiary alcohol in the unreacted ethanol stream which adversely affects the operation of the reaction zone and reduces catalyst stability.
摘要翻译： 本发明涉及通过醇如乙醇与异烯烃如异丁烯或异戊烯的反应制备乙基叔烷基醚的环状方法，其中首先将来自反应区的流出物以 提供塔顶流出物流的蒸馏塔和包含乙基叔烷基醚和未反应的乙醇的底部流出物流，并将该醚产物通入吸附区以除去未反应的乙醇。 当反应在水的存在下发生时， 产生醇（例如，TBA或TAA），并且如果返回到反应区，则叔醇在该过程中积聚并降低效率。 选自沸石13X，二氧化硅结合硅沸石，具有二氧化硅/氧化铝比大于20的MFI结构的碱交换沸石及其混合物的吸附剂用于吸附区以从未反应的乙醇中除去未反应的乙醇 醚产物，以提供基本上不含乙醇的醚产物并且包含叔醇。 因此，用乙醚产物作为高辛烷值，低蒸气压的重整汽油的含氧化合物共混组分除去叔醇。 本发明可用于从其他产物流中回收未反应的乙醇并将未反应的乙醇返回到反应区而不返回TBA。 本发明防止叔醇在未反应的乙醇流中的积聚，这对反应区的操作产生不利影响并降低了催化剂的稳定性。
-
-
-
-
-
-
-
-
-
搜索结果
68 条记录 (耗时 0.033 秒)
