公开(公告)号：US5792891A

公开(公告)日：1998-08-11

申请号：US792980

申请日：1997-02-03

申请人： John R. Adams ,  Lawrence A. Smith, Jr. ,  Dennis Hearn ,  Edward M. Jones, Jr. ,  Robert P. Arganbright

发明人： John R. Adams ,  Lawrence A. Smith, Jr. ,  Dennis Hearn ,  Edward M. Jones, Jr. ,  Robert P. Arganbright

IPC分类号： B01D3/00 ,  B01D3/14 ,  C07C41/06 ,  C07C41/42

CPC分类号： C07C41/06 ,  B01D3/009 ,  B01D3/146 ,  C07C41/42 ,  Y02P20/125 ,  Y02P20/127

摘要： An alkene skeletal isomerization process is employed in an integrated process for the production of tertiary ether, e.g., tertiary amyl methyl ether (TAME) from the reaction of isoamylenes (iC.sub.5.sup.= 's) with methanol in the presence of an acid cation exchange resin. A light naphtha from a fluid catalytic cracking unit is used as the source of the iC.sub.5.sup.= 's in a process which separates the C.sub.5 containing fraction from the light naphtha, selectively hydrogenates the di-olefins contained in the C.sub.5 containing fraction, reacts the iC.sub.5.sup.= 's contained in the C.sub.5 containing fraction with methanol to form TAME, separates the TAME from the unreacted materials as a product, separates methanol from the unreacted materials, isomerizes a portion of the nC.sub.5.sup.= 's to iC.sub.5.sup.= 's , for example using a zeolite or an alumina treated with methanol, and use of the isomerization product as feed for a TAME reactor.

摘要翻译： 烯烃骨架异构化方法用于在酸性阳离子交换树脂存在下，从异戊烯（iC5 = s）与甲醇的反应生产叔醚如叔戊基甲基醚（TAME）的一体化方法中。 在将含C5馏分与轻石脑油分离的方法中，使用来自流化催化裂化装置的轻石脑油作为iC5 =的来源，选择性地氢化含C5馏分中所含的二烯烃，使iC5 包含在含甲醇的馏分中形成TAME，将TAME与未反应的物质作为产物分离，从未反应的物质中分离出甲醇，将nC5 =的一部分异构化为iC5 =，例如 使用沸石或用甲醇处理的氧化铝，并使用异构化产物作为TAME反应器的进料。

公开(公告)号：US4447668A

公开(公告)日：1984-05-08

申请号：US496983

申请日：1983-05-25

申请人： Lawrence A. Smith, Jr. ,  Edward M. Jones, Jr. ,  Dennis Hearn

发明人： Lawrence A. Smith, Jr. ,  Edward M. Jones, Jr. ,  Dennis Hearn

IPC分类号： C07C1/20 ,  C07C2/28 ,  C07C11/02 ,  C07C1/00

CPC分类号： C07C11/02 ,  C07C1/20 ,  C07C2/28 ,  C07C2531/08 ,  Y02P20/127

摘要： Alkyl tertiary butyl ether or alkyl tertiary amyl ether is dissociated by vapor phase contact with a cation acidic exchange resin at temperatures in the range of 150.degree. to 250.degree. F. at LHSV of 0.1 to 20 to produce a stream consisting of unreacted ether, isobutene or isoamylene and an alcohol corresponding to the alkyl radical. After the alcohol is removed, the ether/isoolefin stream may be fractionated to obtain a high purity isoolefin (99+%) or the ether/isoolefin stream can be contacted in liquid phase with a cation acidic exchange resin to selectively dimerize the isoolefin in a highly exothermic reaction, followed by fractionation of the dimerization product to produce high purity diisoolefin (97+%). In the case where the alkyl is C.sub.3 to C.sub.6 and the corresponding alcohol is produced on dissociation of the ether, combined dissociation-distillation may be carried out such that isoolefin is the overhead product and alcohol the bottom.

摘要翻译： 烷基叔丁基醚或烷基叔戊基醚通过与阳离子酸性交换树脂在150至250°F的温度下以0.1至20的LHSV气相接触而解离，以产生由未反应的醚，异丁烯 或异戊烯和对应于烷基的醇。 在除去醇之后，可以分离乙醚/异烯烃流以获得高纯度异烯烃（99 +％），或者乙醚/异烯烃流可以与阳离子酸性交换树脂液相接触，以选择性地使异烯烃二聚 高度放热反应，然后分馏二聚产物以产生高纯度二异氰酸酯（97 +％）。 在烷基为C 3至C 6的情况下，并且在醚的解离时产生相应的醇，可以进行组合的解离 - 蒸馏，使得异烯烃为塔顶产物，醇为底部。

公开(公告)号：US5190730A

公开(公告)日：1993-03-02

申请号：US728041

申请日：1991-07-08

申请人： Lawrence A. Smith, Jr. ,  Dennis Hearn ,  Edward M. Jones, Jr.

发明人： Lawrence A. Smith, Jr. ,  Dennis Hearn ,  Edward M. Jones, Jr.

IPC分类号： B01J8/02 ,  C07C41/06

CPC分类号： C07C41/06 ,  B01J8/02 ,  B01J2208/0053 ,  B01J2208/00539

摘要： A liquid phase process for oligomerization of C.sub.4 and C.sub.5 isoolefins or the etherification thereof with C.sub.1 to C.sub.6 alcohols wherein the reactants are contacted in a reactor with a fixed bed acid cation exchange resin catalyst at an LHSV of 5 to 20, pressure of 0 to 400 psig and temperature of 120.degree. to 300.degree. F. Wherein the improvement is the operation of the reactor at a pressure to maintain the reaction mixture at its boiling point whereby at least a portion but less than all of the reaction mixture is vaporized. By operating at the boiling point and allowing a portion of the reaction mixture to vaporize, the exothermic heat of reaction is dissipated by the formation of more boil up and the temperature in the reactor is controlled.

摘要翻译： 用于C4和C5异烯烃低聚的液相方法或其与C1至C6醇的醚化反应，其中反应物在反应器中与固定床酸阳离子交换树脂催化剂以5至20的LHSV接触，0至400的压力 psig，温度为120-300°F。其中改进之处在于反应器在压力下的操作以将反应混合物保持在其沸点，由此至少部分但少于所有反应混合物蒸发。 通过在沸点下操作并使反应混合物的一部分蒸发，通过形成更多的沸腾而消散反应的放热，并控制反应器中的温度。

公开(公告)号：US4918243A

公开(公告)日：1990-04-17

申请号：US263812

申请日：1988-10-28

申请人： Lawrence A. Smith, Jr. ,  Edward M. Jones, Jr. ,  Dennis Hearn

发明人： Lawrence A. Smith, Jr. ,  Edward M. Jones, Jr. ,  Dennis Hearn

IPC分类号： C07C41/09 ,  C07C41/42 ,  C07C43/04

CPC分类号： C07C41/42 ,  C07C41/06 ,  Y02P20/125

摘要： A portion of the best of vaporization, required to separate and recover methanol from wash water used to remove methanol from a C.sub.4 raffinate resulting from the reaction of isobutene containing C.sub.4 hydrocarbons and methanol to produce MTBE is recovered by conducting the distillation of the methanol/water mixture at a pressure of 40 to 60 psig, thereby increasing the temerature of the methanol overhead to 104.degree. to 114.degree. C. and using the reaction effluent from the MTBE reactor to cool and condense the methanol overhead, said reactor effluent being correspondingly heated prior to entry into a debutanizer tower where unreacted C.sub.4 's and methanol are removed as a raffinate and MTBE product recovered. It is this raffinate that is washed with water to recover the unreacted methanol, with the methanol/water mixture being distilled as set forth above. In another embodiment a stream having a lower temperature than the methanol overhead is withdrawn from the debutanizer and used to cool the methanol overhead, then the correspondingly heated stream returned to the debutanizer.

公开(公告)号：US06169218A

公开(公告)日：2001-01-02

申请号：US08978123

申请日：1997-11-25

申请人： Dennis Hearn ,  Robert P. Arganbright ,  Edward M. Jones, Jr. ,  Lawrence A. Smith, Jr. ,  Gary R. Gildert

发明人： Dennis Hearn ,  Robert P. Arganbright ,  Edward M. Jones, Jr. ,  Lawrence A. Smith, Jr. ,  Gary R. Gildert

IPC分类号： C07C503

CPC分类号： C10G70/02 ,  C07C7/163 ,  C07C2523/44 ,  C10G45/32 ,  Y02P20/127 ,  Y10S203/06 ,  C07C11/02

摘要： A process for the selective hydrogenation of the diolefins and acetylenic compounds in a olefin rich aliphatic hydrocarbon streams is disclosed wherein the selective hydrogenation is carried out at 40 to 300° F. under low hydrogen partial pressure in the range of about 0.1 psi to less than 70 psia at 0 to 350 psig in a distillation column reactor containing a hydrogenation catalyst which serves as a component of a distillation structure, such as supported PdO encased in tubular wire mesh. Essentially no hydrogenation of the olefins occurs.

摘要翻译： 公开了一种在富含烯烃的脂肪族烃流中选择性氢化二烯烃和炔属化合物的方法，其中选择性氢化在40至300°F的低氢分压下进行，其范围为约0.1psi至小于 在含有氢化催化剂的蒸馏塔反应器中，在0至350psig下为70psia，其用作蒸馏结构的组分，例如包裹在管状丝网中的负载型PdO。 基本上没有发生烯烃的氢化。

公开(公告)号：US5122236A

公开(公告)日：1992-06-16

申请号：US526458

申请日：1990-05-21

申请人： Lawrence A. Smith, Jr. ,  Edward M. Jones, Jr. ,  Dennis Hearn

发明人： Lawrence A. Smith, Jr. ,  Edward M. Jones, Jr. ,  Dennis Hearn

IPC分类号： C07C7/10 ,  C07C7/04 ,  C07C9/10 ,  C07C11/08

CPC分类号： C07C7/04

摘要： A process for removing dimethyl ether (DME) and methanol impurities from C.sub.4 hydrocarbon stream without substantial loss of C.sub.4 hydrocarbons by fractionating a C.sub.4 hydrocarbon stream containing DME and methanol at low levels, e.g., less than 5 wt. % to produce an overhead of about 20 to 40 volume % of the C.sub.4 stream, condensing the overhead, contacting the condensed overhead with about 1 to 5 volumes of water, thereby removing a portion of the DME and methanol from the C.sub.4 stream, returning substantially all of the C.sub.4 stream, except the small amount solubilized in the water, to the fractionation and flashing the solubilized DME and hydrocarbons from the water. The fractionation and extraction are preferably carried out at elevated pressures, e.g., 200 to 300 psig to avoid refrigeration of the overhead condensation. The flashing of the DME and hydrocarbons is carried out by reducing the pressure on the water, e.g. atmospheric pressure at a temperature in the range of 20.degree. C. to 50.degree. C., leaving methanol in the water. The methanol can be removed by distillation or by contacting the methanol containing water stream with a large volume of a C.sub.4 stream whereby a portion of the methanol is extracted in the C.sub.4 stream. The methanol depleted stream can recycle to contact the condensed overhead from the fractionation thereby establishing a closed circuit water wash/methanol recovery system.

公开(公告)号：US06495732B1

公开(公告)日：2002-12-17

申请号：US09735129

申请日：2000-12-12

申请人： Dennis Hearn ,  Robert P. Arganbright ,  Edward M. Jones, Jr. ,  Lawrence A. Smith, Jr. ,  Gary R. Gildert

发明人： Dennis Hearn ,  Robert P. Arganbright ,  Edward M. Jones, Jr. ,  Lawrence A. Smith, Jr. ,  Gary R. Gildert

IPC分类号： C07C523

CPC分类号： C10G70/02 ,  C07C7/163 ,  C07C7/167 ,  C07C2523/44 ,  C10G45/32 ,  C10G45/62 ,  Y02P20/127 ,  C07C11/02 ,  C07C11/06

摘要： A process for the isomerization of mono-olefins in aliphatic hydrocarbon streams is carried out at 40 to 300° F. under low hydrogen partial pressure in the range of about 0.1 psi to less than 70 psi at 0 to 350 psig in a distillation column reactor containing a hydrogenation catalyst which serves as a component of a distillation structure, such as supported PdO encased in tubular wire mesh. Essentially no hydrogenation of the mono-olefins occurs.

摘要翻译： 脂肪烃流中单烯烃异构化的方法在40-300°F的低氢分压下在0-350psig的范围内在约0.1psi至小于70psi的范围内在蒸馏塔反应器中进行 含有用作蒸馏结构的组分的氢化催化剂，例如包裹在管状丝网中的负载PdO。 基本上没有发生单烯烃的氢化。

公开(公告)号：US4950803A

公开(公告)日：1990-08-21

申请号：US58698

申请日：1987-06-01

申请人： Lawrence A. Smith, Jr. ,  Dennis Hearn ,  Edward M. Jones, Jr.

发明人： Lawrence A. Smith, Jr. ,  Dennis Hearn ,  Edward M. Jones, Jr.

IPC分类号： B01J8/02 ,  C07C41/06

CPC分类号： B01J8/02 ,  C07C41/06 ,  B01J2208/0053 ,  B01J2208/00539

摘要： A liquid phase process for oligomerization of C.sub.4 and C.sub.5 isoolefins or the etherification thereof with C.sub.1 to C.sub.6 alcohols wherein the reactants are contacted in a reactor with a fixed bed acid cation exchange resin catalyst at an LHSV of 5 to 20, pressure of 0 to 400 psig and temperature of 120.degree. to 300.degree. F. wherein the improvement is the operation of the reactor at a pressure to maintain the reaction mixture at its boiling point whereby at least a portion but less than all of the reaction mixture is vaporized. By operating at the boiling point and allowing a portion of the reaction mixture to vaporize, the exothermic heat of reaction is dissipated by the formation of more boil up and the temperature in the reactor is controlled.

摘要翻译： 用于C4和C5异烯烃低聚的液相方法或其与C1至C6醇的醚化反应，其中反应物在反应器中与固定床酸阳离子交换树脂催化剂以5至20的LHSV接触，0至400的压力 压力和温度为120°至300°F。其中改进在于将反应混合物保持在其沸点的压力下的反应器的操作，由此至少部分但小于所有反应混合物的蒸发。 通过在沸点下操作并使反应混合物的一部分蒸发，通过形成更多的沸腾而消散反应的放热，并控制反应器中的温度。

公开(公告)号：US5177289A

公开(公告)日：1993-01-05

申请号：US666847

申请日：1991-03-08

申请人： Lawrence Smith, Jr. ,  Dennis Hearn ,  Edward M. Jones, Jr.

发明人： Lawrence Smith, Jr. ,  Dennis Hearn ,  Edward M. Jones, Jr.

IPC分类号： B01J8/02 ,  C07C41/06

CPC分类号： B01J8/02 ,  C07C41/06 ,  B01J2208/0053 ,  B01J2208/00539

摘要： A liquid phase process for oligomerization of C.sub.4 and C.sub.5 isoolefins or the etherification thereof with C.sub.1 to C.sub.6 alcohols wherein the reactants are contacted in a reactor with a fixed bed acid cation exchange resin catalyst at an LHSV of 5 to 20, pressure of 0 to 400 psig and temperature of 120.degree. to 300.degree. F. wherein the improvement is the operation of the reactor at a pressure to maintain the reaction mixture at its boiling point whereby at least a portion but less than all of the reaction mixture is vaporized. By operating at the boiling point and allowing a portion of the reaction mixture to vaporize, the exothermic heat of reaction is dissipated by the formation of more boil up and the temperature in the reactor is controlled.

摘要翻译： 用于C4和C5异烯烃低聚的液相方法或其与C1至C6醇的醚化反应，其中反应物在反应器中与固定床酸阳离子交换树脂催化剂以5至20的LHSV接触，0至400的压力 压力和温度为120°至300°F。其中改进在于将反应混合物保持在其沸点的压力下的反应器的操作，由此至少部分但小于所有反应混合物的蒸发。 通过在沸点下操作并使反应混合物的一部分蒸发，通过形成更多的沸腾而消散反应的放热，并控制反应器中的温度。

公开(公告)号：US5446231A

公开(公告)日：1995-08-29

申请号：US185121

申请日：1994-01-24

申请人： Robert P. Arganbright ,  Edward M. Jones, Jr. ,  Dennis Hearn

发明人： Robert P. Arganbright ,  Edward M. Jones, Jr. ,  Dennis Hearn

IPC分类号： C07C7/10 ,  C10G21/06 ,  C10G21/16 ,  C10G21/28 ,  C07C7/00

CPC分类号： C07C7/10 ,  C10G21/06 ,  C10G21/16 ,  C10G21/28

摘要： The present invention is a method for removing nitrile contaminants from C.sub.5 streams. In particular, a C.sub.5 stream is washed in a countercurrent fashion with a mixture comprising 50% methanol and 50% water to extract the nitriles from the C.sub.5 hydrocarbons into the water-methanol mixture. Propionitrile removal is enhanced by the presence of the methanol in the solvent. An further embodiments include (1) a method for recovering methanol from the extract stream by hydrogenating the nitriles to form amines, converting the amines to ammonium salts by acid treatment and distilling out the methanol and (2) distilling out methanol/nitriles from the extract stream, admixing the methanol/nitriles with an alkane/alkene/ether stream then distilling the methanol out in a azeotrope with the alkane/alkenes while leaving the nitriles in the ether.

摘要翻译： 本发明是从C5流中除去腈污染物的方法。 特别地，将C5流以包含50％甲醇和50％水的混合物逆流洗涤，以将来自C5烃的腈提取到水 - 甲醇混合物中。 通过甲醇在溶剂中的存在来提高丙腈去除效果。 另外的实施方案包括（1）通过氢化腈形成胺从萃取物流中回收甲醇的方法，通过酸处理将胺转化成铵盐并蒸馏除去甲醇，和（2）从提取物中蒸出甲醇/腈 将甲醇/腈与烷烃/烯烃/醚流混合，然后将甲醇与烷烃/烯烃共沸出，同时将腈离开在乙醚中。