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公开(公告)号：US5998688A
公开(公告)日：1999-12-07
申请号：US139465
申请日：1998-08-25
申请人： Jeevan S. Abichandani , Jeffrey S. Beck , Stephen H. Brown , Ronald J. Cimini , Ivy D. Johnson , Selma Kwok , Dimitris K. Liguras , David L. Stern
发明人： Jeevan S. Abichandani , Jeffrey S. Beck , Stephen H. Brown , Ronald J. Cimini , Ivy D. Johnson , Selma Kwok , Dimitris K. Liguras , David L. Stern
CPC分类号： C07C4/18 , C07C5/2702 , C07C2523/36 , C07C2523/42 , C07C2523/44 , C07C2523/46 , C07C2529/80
摘要： A method for minimizing the loss of xylenes in an ethylbenzene conversion/isomerization process by adding toluene to the feedstock. The concentration of toluene in the feedstock is increased by co-feeding toluene or by recycling toluene separated from the ethylbenzene conversion reactor effluent. The increased toluene concentration reduces the loss of xylenes during the ethylbenzene conversion reaction and under preferred operating conditions increases the amount of xylenes in the product.
摘要翻译： 通过向原料中加入甲苯来最小化乙苯转化/异构化方法中二甲苯损失的方法。 原料中甲苯的浓度通过共同加入甲苯或通过回收从乙苯转化反应器流出物中分离的甲苯而增加。 增加的甲苯浓度降低了乙苯转化反应期间二甲苯的损失，并且在优选的操作条件下增加了产物中二甲苯的量。
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公开(公告)号：US5854170A
公开(公告)日：1998-12-29
申请号：US940316
申请日：1997-09-30
CPC分类号： B01J23/6527 , B01J23/24 , B01J23/28 , B01J23/30 , C01P2002/54 , C10G2400/10
摘要： There is provided a method for preparing an acidic solid comprising a Group IVB metal oxide modified with an oxyanion of a Group VIB metal. An example of this acidic solid is zirconia, modified with tungstate. This modified solid oxide may be used as a catalyst, for example, to isomerize C.sub.4 to C.sub.8 paraffins. The modified solid oxide is treated with hydrogen at elevated temperatures to enhance catalytic properties of the material.
摘要翻译： 提供了一种制备酸性固体的方法，该酸性固体包含用VIB族金属的氧阴离子改性的ⅣB族金属氧化物。 这种酸性固体的一个例子是用钨酸盐改性的氧化锆。 该改性的固体氧化物可以用作催化剂，例如使C4至C8链烷烃异构化。 改性固体氧化物在高温下用氢处理以提高材料的催化性能。
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公开(公告)号：US5567666A
公开(公告)日：1996-10-22
申请号：US441518
申请日：1995-05-15
申请人： Jeffrey S. Beck , David L. Stern
发明人： Jeffrey S. Beck , David L. Stern
CPC分类号： B01J37/082 , B01J29/40 , B01J2229/16 , B01J2229/37 , B01J2229/42
摘要： There is provided a zeolite catalyst, which is first selectivated with a siliceous material and then treated with an aqueous solution comprising a dealuminizing agent such as an acid or a chelating agent.
摘要翻译： 提供沸石催化剂，其首先用硅质材料选择，然后用包含脱铝剂如酸或螯合剂的水溶液处理。
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公开(公告)号：US5530170A
公开(公告)日：1996-06-25
申请号：US468597
申请日：1995-06-06
CPC分类号： B01J29/40 , B01J37/086 , C07C2/66 , C07C2/864 , C07C6/123 , B01J2229/12 , B01J2229/32 , B01J2229/42 , C07C2529/06 , C07C2529/40 , C07C2529/65 , C07C2529/70 , Y02P20/52
摘要： There is provided a process for the alkylation of ethylbenzene with ethylene to selectively produce para-diethylbenzene over a catalyst which has been selectivated by multiple treatments with a siliceous material.
摘要翻译： 提供了一种使用乙烯烷基化乙苯以选择性地在催化剂上生产对二乙苯的方法，所述催化剂已经通过用硅质材料进行多次处理而选择。
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25.发明授权Process for oxidative conversion of methane to higher hydrocarbons using metal sulfide oxidizing agent 失效使用金属硫化物氧化剂将甲烷氧化转化成高级烃的方法
公开(公告)号：US5191138A
公开(公告)日：1993-03-02
申请号：US794560
申请日：1991-11-19
IPC分类号： C07C2/82
CPC分类号： C07C2/82 , Y10S585/943
摘要： There is provided a process for converting methane to hydrocarbons having at least two carbon atoms (i.e. higher hydrocarbons). The process involves oxidizing methane with a metal sulfide oxidizing agent. After this conversion of methane, the reduced metal sulfide may be regenerated by oxidation of the reduced metal sulfide.
摘要翻译： 提供了将甲烷转化为具有至少两个碳原子的烃（即高级烃）的方法。 该方法涉及用金属硫化物氧化剂氧化甲烷。 在甲烷转化后，还原的金属硫化物可以通过还原的金属硫化物的氧化再生。
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公开(公告)号：US4094646A
公开(公告)日：1978-06-13
申请号：US802600
申请日：1977-06-02
申请人： David L. Stern , Daniel B. Samchuck
发明人： David L. Stern , Daniel B. Samchuck
CPC分类号： G01N33/52 , G01N33/12 , Y10T436/145555
摘要： A rapid method for assaying collagen in meat and meat products. A sample of the material being tested is subjected to a controlled, incomplete hydrolysis of the amino acids with an acidified solution of stannous chloride in such a way that all of the tryptophan is completely destroyed but only a portion of the hydroxyproline is hydrolyzed. The percent collagen is correlated with the percent hydroxyproline, colorimetrically determined.
摘要翻译： 一种快速测定肉类和肉制品中胶原蛋白的方法。 用被氯化亚锡的酸化溶液对所测试的材料的样品进行受控的，不完全水解的氨基酸，使得所有的色氨酸被完全破坏，但只有一部分羟脯氨酸被水解。 胶原蛋白百分数与羟脯氨酸百分比相关，用比色法测定。
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27.发明授权公开(公告)号：US07959720B2
公开(公告)日：2011-06-14
申请号：US12080784
申请日：2008-04-04
IPC分类号： B01D53/02
CPC分类号： B01D53/0407 , B01D53/047 , B01D2253/102 , B01D2253/106 , B01D2253/31 , B01D2253/342 , B01D2256/24 , B01D2257/304 , B01D2257/404 , B01D2257/504 , C07C7/12 , C10L3/10 , C10L3/102 , Y02C10/08 , Y02P20/152 , C07C9/04
摘要： The present invention relates to engineered structured adsorbent contactors for use in pressure swing adsorption and thermal swing adsorption processes. Preferably, the contactors contain engineered and substantially parallel flow channels wherein 20 volume percent or less of the open pore volume of the contactor, excluding the flow channels, is in the mesopore and macropore range.
摘要翻译： 本发明涉及用于变压吸附和热变形吸附过程的工程化结构化吸附剂接触器。 优选地，接触器包含工程化和基本上平行的流动通道，其中不包括流动通道的接触器的开孔体积的20体积％或更少在中孔和大孔范围内。
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公开(公告)号：US20090139900A1
公开(公告)日：2009-06-04
申请号：US12322485
申请日：2009-02-03
IPC分类号： C10G11/02
摘要： This invention relates to a FCC process using a mesoporous catalytic cracking catalyst. The mesoporous fluidized catalytic cracking catalyst is selective for minimizing the production of coke and light gas. The catalyst comprises at least one amorphous, porous matrix, each matrix having pores ranging in diameter from about 1 Å to about 10 Å and pores ranging in diameter from about 40 Å to about 500 Å, wherein in the pore range from 50 Å to 250 Å, there is a single maximum in differential pore volume distribution over the 50 Å to 250 Å range.
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公开(公告)号：US07326332B2
公开(公告)日：2008-02-05
申请号：US10671080
申请日：2003-09-25
申请人： Tan-Jen Chen , John Scott Buchanan , Brian Erik Henry , Paul F. Keusenkothen , Philip A. Ruziska , David L. Stern
发明人： Tan-Jen Chen , John Scott Buchanan , Brian Erik Henry , Paul F. Keusenkothen , Philip A. Ruziska , David L. Stern
CPC分类号： C10G11/05 , B01J29/005 , B01J29/40 , B01J29/85
摘要： A multi component catalyst and catalytic cracking process for selectively producing C3 olefins. The catalyst comprises a first molecular sieve having an intermediate pore size, a second molecular sieve and, optionally a third molecular sieve having a large pore size. At least one of the channels of the second molecular sieve has a pore size index that is less than the pore size index of at least one channel of the first molecular sieve. The process is carried out by contacting a feedstock containing hydrocarbons having at least 5 carbon atoms is contacted, under catalytic cracking conditions, with the multi component catalyst. The catalyst finds application in the cracking of naphtha and heavy hydrocarbon feedstocks.
摘要翻译： 用于选择性制备C 3 O 3烯烃的多组分催化剂和催化裂解方法。 催化剂包括具有中等孔径的第一分子筛，第二分子筛和任选的具有大孔径的第三分子筛。 第二分子筛的至少一个通道的孔径指数小于第一分子筛的至少一个通道的孔径指数。 该方法通过使含有至少5个碳原子的烃的原料在催化裂化条件下与多组分催化剂接触来进行。 该催化剂可用于石脑油和重质烃原料的裂解。
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公开(公告)号：US07214840B2
公开(公告)日：2007-05-08
申请号：US10897528
申请日：2004-07-23
IPC分类号： C07C2/68
CPC分类号： C07C2/66 , C07C7/13 , C07C2529/70 , C07C15/107
摘要： In a process for reducing the Bromine Index of a feed containing a linear alkylbenzene and bromine-reactive olefinic hydrocarbon contaminants, the feed is contacted under conditions effective to remove bromine-reactive olefinic hydrocarbon contaminants with a catalyst comprising zeolite Y catalyst having an alpha value of about 2 to about 30. The feed will normally also contain benzene and linear paraffin remaining from the alkylation process used to produce the linear alkylbenzene.
摘要翻译： 在减少含有直链烷基苯和溴反应性烯烃污染物的进料的溴指数的方法中，使用含有沸石Y催化剂的催化剂有效除去溴反应性烯烃污染物的条件进料进料接触，该催化剂的α值为 约2至约30.进料通常还含有从用于生产直链烷基苯的烷基化方法残留的苯和线性链烷烃。
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