公开(公告)号：US5461178A

公开(公告)日：1995-10-24

申请号：US234792

申请日：1994-04-28

申请人： Mohsen N. Harandi

发明人： Mohsen N. Harandi

IPC分类号： B01D3/00 ,  C10G45/32 ,  C10G49/00 ,  C07C5/03 ,  C07C7/10

CPC分类号： B01D3/009 ,  C10G45/32 ,  C10G49/002

摘要： A method and operating technique for treating diene-containing aliphatic streams by introducing the light hydrocarbon stream at a top portion of a vertical stripping tower having an upper catalytic contact zone containing a bed of solid hydrogenation catalyst particles and a lower contact zone, and introducing a light gas stream containing hydrogen at a lower portion of said stripping tower. Selective hydrogenation is effected by flowing the light hydrocarbon stream and light gas stream countercurrently in contact with the solid hydrogenation catalyst particles under hydrogenation and stripping conditions, thereby converting said diene to mono-alkene in the upper contact zone.

摘要翻译： 通过将轻质烃流引入垂直汽提塔的顶部，其具有含有固体氢化催化剂颗粒和下部接触区的上部催化接触区的方法和操作技术，并引入 在所述汽提塔的下部含有氢的轻质气流。 通过在轻质烃流和轻质气体流在氢化和汽提条件下与固体氢化催化剂颗粒反向流动来进行选择氢化，从而将所述二烯转化为上部接触区中的单烯烃。

公开(公告)号：US5401391A

公开(公告)日：1995-03-28

申请号：US28055

申请日：1993-03-08

申请人： Nick A. Collins ,  Mohsen N. Harandi ,  Raymond D. McGraw

发明人： Nick A. Collins ,  Mohsen N. Harandi ,  Raymond D. McGraw

IPC分类号： C10G45/12 ,  C10G45/20

CPC分类号： C10G45/12 ,  C10G45/20

摘要： A process for desulfurizing a hydrocarbon stream which includes at least 100 ppmw sulfur in the form of organic sulfur compounds, and C.sub.4 -hydrocarbons. The hydrocarbon stream is contacted in the absence of added hydrogen with a fluidized bed of an acidic catalyst having a structure of ZSM-5, ZSM-11, ZSM-22, ZSM-23, ZSM-35, ZSM-48, MCM-22, MCM-36, MCM-49, zeolite Y, zeolite beta or mixtures thereof to convert the organic sulfur compounds to hydrogen sulfide. The catalyst contacts the hydrocarbon stream at a pressure of from 0.0 psig to about 400 psig, a temperature of from about 400.degree. F. to about 900.degree. F., and a weight hourly space velocity of from about 0.1 hr..sup.-1 to about 10.0 hr..sup.-1. Thereafter, the hydrogen sulfide is removed from the hydrocarbon stream.

摘要翻译： 烃流的脱硫方法，其包括有机硫化合物形式的至少100ppmw的硫和C4-烃。 烃流在不存在加氢的情况下与具有ZSM-5，ZSM-11，ZSM-22，ZSM-23，ZSM-35，ZSM-48，MCM-22结构的酸性催化剂的流化床接触 ，MCM-36，MCM-49，沸石Y，沸石β或其混合物，以将有机硫化合物转化为硫化氢。 催化剂在压力为0.0psig至约400psig，温度为约400°F至约900°F，重时空速为约0.1hr.-1至约 10.0小时-1。 此后，从烃流中除去硫化氢。

公开(公告)号：US5397457A

公开(公告)日：1995-03-14

申请号：US203185

申请日：1994-02-25

申请人： Mohsen N. Harandi ,  Roger A. Morrison

发明人： Mohsen N. Harandi ,  Roger A. Morrison

IPC分类号： C10G47/18

CPC分类号： C10G47/18

摘要： A hydrocarbon fraction, preferably in the kerosene boiling range containing a substantial proportion of C.sub.9 + hydrocarbons is contacted with an n-paraffin fraction, such as n-pentane, over a catalyst of acidic functionality, such as Pd/zeolite beta, under conditions of hydrocracking sufficient to convert the feed to lower boiling range materials of high octane number. The n-paraffin cofeed promotes isomerization and suppresses production of n-paraffins.

摘要翻译： 在氢化裂化条件下，在酸性官能团的催化剂如Pd /沸石β上，将含有大部分C 9+烃的烃馏分优选与正链烷烃馏分如正戊烷接触。 足以将进料转化为高辛烷值的较低沸点材料。 正链烷烃共进料促进异构化并抑制正链烷烃的生产。

公开(公告)号：US5234576A

公开(公告)日：1993-08-10

申请号：US738371

申请日：1991-07-31

申请人： Werner O. Haag ,  Mohsen N. Harandi ,  Hartley Owen

发明人： Werner O. Haag ,  Mohsen N. Harandi ,  Hartley Owen

IPC分类号： C10G35/095 ,  C10G55/06 ,  C10G57/00

CPC分类号： C10G57/00

摘要： The present invention discloses a process for increasing the selectivity of the production of isobutylene in an admixture of C.sub.4 olefins, in a process comprising producing isobutylene, with high selectivity, comprising catalytically producing a first composition comprising at least one C.sub.4 olefin selected from the group consisting of 1-butene, cis-2-butene, trans-2-butene, admixtures thereof and 2-methylpropene admixed with at least one of said 1-butene, cis-2-butene, and trans-2-butene, by passing paraffin containing feed, which feed is free of aromatics, and in which the paraffin contains 5 to 20 carbon atoms, in the vapor phase, over a first catalyst composition, wherein the catalyst comprises ZSM-5 or ZSM-12, and increasing the isobutylene content of the first composition by producing a second composition, by contacting the first composition with a second catalyst composition comprising ZSM-23 under conditions in which the second composition is in the vapor phase, while maintaining the total C.sub.4 olefin content of the second composition substantially identical to the total C.sub.4 olefin content of the first composition.

摘要翻译： 本发明公开了一种增加在C4烯烃混合物中制备异丁烯的选择性的方法，该方法包括以高选择性制备异丁烯，其包括催化产生第一组合物，该组合物包含至少一种选自以下的C 4烯烃： 的1-丁烯，顺式-2-丁烯，反式-2-丁烯，其混合物和与所述1-丁烯，顺式-2-丁烯和反式-2-丁烯中的至少一种混合的2-甲基丙烯，通过石蜡 其中该进料不含芳族化合物，并且其中石蜡在汽相中含有5至20个碳原子，超过第一催化剂组合物，其中催化剂包含ZSM-5或ZSM-12，并且增加异丁烯含量 通过制备第二组合物，通过使第一组合物与包含ZSM-23的第二催化剂组合物在第二组合物处于气相的条件下接触，同时保持t 他的第二组合物的总C 4烯烃含量基本上与第一组合物的总C 4烯烃含量相同。

公开(公告)号：US5132467A

公开(公告)日：1992-07-21

申请号：US665052

申请日：1991-03-06

申请人： Werner O. Haag ,  Mohsen N. Harandi ,  Hartley Owen

发明人： Werner O. Haag ,  Mohsen N. Harandi ,  Hartley Owen

IPC分类号： C07C41/06

CPC分类号： C07C41/06

摘要： A process is disclosed for the production of tertiary alkyl ethers wherein linear olefins, particularly n-butene, are isomerized in the vapor phase at high temperature in contact with shape selective metallosilicate catalyst to produce iso-olefin vapor, particularly isobutene. The vaporous iso-butene is then etherified with alkanol to provide alkyl tert-alkyl ether such as MTBE. Unreacted iso-olefin and/or linear olefin and product ether are separated by fractionation and unreacted olefin components recycled. Fractionation of the vapor phase etherification product is carried out by using the fresh liquid linear olefin feedstream as a reflux stream to the fractionator.

摘要翻译： 公开了用于生产叔烷基醚的方法，其中线性烯烃，特别是正丁烯在气相中在与形状选择性金属硅酸盐催化剂接触的高温下异构化以产生异烯烃蒸气，特别是异丁烯。 然后将气态异丁烯与烷醇醚化，得到烷基叔烷基醚如MTBE。 通过分级分离未反应的异烯烃和/或直链烯烃和产物醚，并回收未反应的烯烃组分。 通过使用新鲜液体线性烯烃进料流作为回流流向分馏器进行气相醚化产物的分馏。

公开(公告)号：US5108719A

公开(公告)日：1992-04-28

申请号：US631116

申请日：1990-12-20

申请人： Mohsen N. Harandi ,  Hartley Owen

发明人： Mohsen N. Harandi ,  Hartley Owen

IPC分类号： C07C41/06 ,  C10L1/02

CPC分类号： C10L1/023 ,  C07C41/06

摘要： Isopentene, or isoamylene, conversion to methyl tert-amyl ether can be substantially improved while high conversion of isobutylene to methyl tert-butyl ether can be maintained by carrying out the overall etherification process with alkanol in a staged manner, wherein the first stage is methanol etherification of a C.sub.5 +, or C.sub.5, hydrocarbon feedstream rich in isoamylene and the second stage is etherification to produce MTBE and additional TAME from a C.sub.4 +, or C.sub.4, feedstream. Unreacted methanol and hydrocarbons from the first etherification are uniquely separated by fractionation from the TAME product by using the second stage C.sub.4 + feedstream as a reflux stream to the fractionator and passed to the second etherification zone. Products from the second etherification zone are separated by distillation to produce MTBE, TAME and C.sub.5 +, or C.sub.5, hydrocarbons as a bottom stream.

摘要翻译： 异戊烯或异戊烯转化成甲基叔戊基醚可以显着改善，同时可以通过以分段方式与链烷醇进行总体醚化过程，可以维持异丁烯至甲基叔丁基醚的高转化率，其中第一阶段为甲醇 富含异戊烯的C5 +或C5烃进料的醚化，第二阶段是醚化以从C4 +或C4进料流产生MTBE和另外的TAME。 来自第一次醚化的未反应的甲醇和烃通过使用第二级C4 +进料流作为回流流至分馏器并通过第二醚化区从TAME产物的分馏而被独特地分离。 来自第二醚化区的产物通过蒸馏分离以产生作为底部流的MTBE，TAME和C5 +或C5烃。

公开(公告)号：US5106389A

公开(公告)日：1992-04-21

申请号：US599199

申请日：1990-10-17

申请人： Mohsen N. Harandi ,  Hartley Owen

发明人： Mohsen N. Harandi ,  Hartley Owen

IPC分类号： C10G29/20 ,  C10L1/02

CPC分类号： C10G29/205 ,  C10L1/023

摘要： A process is disclosed for the production of high octane alkyl tertiary alkyl ether rich gasoline and gasoline rich in alkylated aromatics. It is disclosed that unreacted C.sub.3 -C.sub.4 hydrocarbon fraction of etherification feedstock plus unreacted alkanol can be separated and employed as alkylating agents in combination with a feedstream containing light aromatics when the alkylation reaction is carried out under conditions of high severity in contact with a high activity shape selective metallosilicate catalyst such as ZSM-5. Under high severity conditions olefin-assisted paraffin conversion also occurs as well as cracking, redistribution and alkylation. Aromatic rich gasoline is a suitable feedstream to the high severity conversion zone to produce a gasoline rich in alkylated aromatics.

摘要翻译： 公开了用于生产富含烷基化芳族化合物的高辛烷基烷基叔烷基醚富含汽油和汽油的方法。 公开了当烷基化反应在与高活性接触的高度苛刻条件下进行时，可以将醚化原料的未反应的C 3 -C 4烃馏分加上未反应的链烷醇分离并用作烷基化试剂与含有轻芳烃的进料流的组合 形状选择性金属硅酸盐催化剂如ZSM-5。 在高苛刻度条件下，烯烃辅助石蜡转化也发生，以及裂化，再分布和烷基化。 富含芳烃的汽油是适用于高浓度转化区的原料流，以产生富含烷基化芳族化合物的汽油。

公开(公告)号：US5095159A

公开(公告)日：1992-03-10

申请号：US616530

申请日：1990-11-21

申请人： Mohsen N. Harandi ,  Hartley Owen

发明人： Mohsen N. Harandi ,  Hartley Owen

IPC分类号： C07C41/06 ,  C10G3/00 ,  C10G35/095 ,  C10L1/06

CPC分类号： C10L1/06 ,  C07C41/06 ,  C10G3/49 ,  C10G35/095 ,  C10G2300/1081 ,  C10G2300/1092 ,  C10G2300/4006 ,  C10G2300/4012 ,  C10G2400/02 ,  Y02P20/125

摘要： An integrated process is disclosed that substantially reduces the cost of producing MTBE and other alkyl tertalkyl ethers by eliminating a major portion of the equipment and operating costs associated with the downstream processing of the etherification reactor effluent. The integrated process combines the process for the etherification of iso-olefins and methanol, or other alkanols, to produce methyl tertiary alkyl ethers such as MTBE and/or TAME with the catalytic process for converting feedstock such as oxygenates, light olefins and paraffins to higher molecular weight hydrocarbons. Unconverted reactants from the etherification reaction, which may comprise unreacted alkanol and unreacted hydrocarbons or just unreacted hydrocarbons, are separated from the product ethers and passed to the catalytic conversion process reactor for conversion to gasoline boiling range hydrocarbons.

摘要翻译： 公开了一种综合方法，通过消除设备的主要部分和与醚化反应器流出物的下游加工相关的操作成本，大大降低了生产MTBE和其它烷基叔烷基醚的成本。 该综合方法结合了异烯烃和甲醇或其它链烷醇的醚化方法，以生产甲基叔烷基醚如MTBE和/或TAME，具有用于将原料如含氧化合物，轻质烯烃和链烷烃转化为更高的催化方法 分子量烃。 来自可能包含未反应的烷醇和未反应的烃或刚刚未反应的烃的醚化反应的未转化的反应物从产物醚中分离出并转移到催化转化过程反应器中以转化为汽油沸程烃。

公开(公告)号：US5043517A

公开(公告)日：1991-08-27

申请号：US428715

申请日：1989-10-30

申请人： James H. Haddad ,  Mohsen N. Harandi ,  Hartley Owen

发明人： James H. Haddad ,  Mohsen N. Harandi ,  Hartley Owen

IPC分类号： B01J29/40 ,  B01J29/90 ,  B01J38/30 ,  C07C2/12 ,  C10G11/18

CPC分类号： B01J38/30 ,  B01J29/90 ,  C07C2/12 ,  C07C2529/40 ,  Y02P20/584

摘要： Process for the continuous conversion of light olefin gas feed containing ethene, propene and butene to produce heavier hydrocarbons by contacting the light olefin feed in a fluidized bed reaction zone with a medium pore molecular sieve zeolite catalyst under oligomerization conditions to convert the light olefin feed to heavier hydrocarbons. The catalytic reaction causes the conversion of the light olefins to heavier hydrocarbons, the deposition of coke by-product on the catalyst and the absorption of hydrocarbon product on the catalyst. The deposited coke causes the partial deactivation of the catalyst. A portion of the partially deactivated catalyst containing deposited coke and absorbed hydrocarbon product is continuously withdrawn from the reaction zone and transferred to a catalyst stripping zone in which the catalyst is contacted with an inert stripping gas to remove the absorbed hydrocarbons from the catalyst. The stripped catalyst containing deposited coke is withdrawn from the stripping zone and transferred to a catalyst regeneration zone in which the catalyst is maintained in a fluidized bed and contacted with an oxygen containing gas to effect combustion of the coke and removal of the coke from the catalyst and regeneration of the catalyst. The regenerated catalyst containing a minor amount of residual carbon is withdrawn from the regeneration zone and introduced to the reaction zone and contacted with fresh light olefin feed. The careful control of the operating conditions in the regeneration zone provides removal of substantially all of the coke deposits at relatively low temperatures and an effluent flue gas with a low carbon monoxide content and low water content.

公开(公告)号：US5026529A

公开(公告)日：1991-06-25

申请号：US297731

申请日：1989-01-17

申请人： Mohsen N. Harandi ,  Hartley Owen

发明人： Mohsen N. Harandi ,  Hartley Owen

IPC分类号： C07C1/20 ,  C10L1/02

CPC分类号： C10L1/023 ,  C07C1/20 ,  C07C2529/40

摘要： Improved operating techniques and apparatus for converting methanol or the like to intermediate olefins and etherification products, such as methyl t-butyl ether, by extracting crude methanol feedstock with an olefinic liquid hydrocarbon stream containing C.sub.4.sup.+ iso-olefins. The methanol extract phase is reacted under etherification conditions. The aqueous methanol raffinate stream is converted catalytically to olefins for recovery of C.sub.4.sup.+ olefinic liquid hydrocarbons useful as extraction solvent.A continuous system is provided for converting crude aqueous alcohol feedstock to olefinic hydrocarbons and octane enhancing ethers comprising: extractor means for contacting feedstock liquid containing water with a liquid hydrocarbon extraction stream to provide an extract liquid stream rich in alcohol and an aqueous raffinate stream lean in alcohol; catalytic reactor means for contacting the aqueous alcohol raffinate stream in a catalytic reaction zone with a crystalline acid zeolite catalyst at elevated temperature in an intermediate olefins production zone under process conditions to convert a major portion of alcohol to hydrocarbons; separation means to recover a gaseous stream rich in C.sub.3.sup.- hyrocarbons and a liquid stream comprising C.sub.4.sup.+ hydrocarbons; recycle means for contacting at least a portion of the liquid hydrocarbon stream from said separation means with crude alcohol feedstock in said extractor means; and etherification reactor means for contacting at least a portion of extracted alcohol and olefinic liquid hydrocarbon with etherification catalyst to produce an ether product stream.

摘要翻译： 通过用含有C4 +异烯烃的烯烃液体烃流提取粗甲醇原料，改进了将甲醇等转化成中间体烯烃和醚化产物如甲基叔丁基醚的操作技术和装置。 甲醇萃取相在醚化条件下反应。 将甲醇萃余水流催化转化为烯烃，以回收可用作萃取溶剂的C4 +烯烃液体烃。 提供连续系统用于将粗含水醇原料转化为烯烃和辛烷增强醚，包括：萃取器装置，用于使含有水的原料液体与液体烃萃取物流接触，以提供富含醇的萃取液体流和稀有的含水萃余液流 醇; 催化反应器装置，用于在催化反应区中的含水醇萃余液流与结晶酸沸石催化剂在高温下在中间烯烃生产区中在工艺条件下使大部分醇转化成烃; 分离装置用于回收富含C 3 - 碳氢化合物的气态物流和包含C4 +烃的液体物流; 用于使来自所述分离装置的液体烃流的至少一部分与所述提取器装置中的粗醇原料接触的再循环装置; 和醚化反应器装置，用于使至少一部分提取的醇和烯烃液态烃与醚化催化剂接触以产生醚产物流。