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公开(公告)号：US09708230B2
公开(公告)日：2017-07-18
申请号：US14976983
申请日：2015-12-21
Applicant: ExxonMobil Chemical Patents Inc.
Inventor： Michael Salciccioli , Jihad M. Dakka , Neeraj Sangar , Lorenzo C. DeCaul , Ali A. Kheir
IPC: C07C2/74 , C07C67/08 , C07C5/367 , C07C51/265
CPC classification number: C07C2/74 , C07C5/367 , C07C51/265 , C07C67/08 , C07C2521/08 , C07C2523/42 , C07C2529/74 , C07C69/76 , C07C13/18 , C07C13/28 , C07C15/14 , C07C57/46
Abstract: In a process for producing biphenyl compounds, a Cn aromatic hydrocarbon may be hydroalkylated to give C2n cycloalkylaromatic compounds and byproduct Cn saturated cyclic hydrocarbons. The C2n cycloalkylaromatic compounds are dehydrogenated to provide the biphenyl compounds. The Cn saturated cyclic hydrocarbons may also be dehydrogenated back to the corresponding Cn aromatic hydrocarbon, which may be recycled to provide additional feed. Although both the intermediate C2n cycloalkylaromatic compounds and the byproduct Cn saturated cyclic hydrocarbons should be dehydrogenated, at least part of the dehydrogenation of the Cn saturated cyclic hydrocarbons should take place in the absence of C2n or greater hydrocarbons. Thus, dehydrogenation of the byproduct Cn saturated cyclic hydrocarbons should take place at least in part separately from dehydrogenation of the C2n cycloalkylaromatic compounds.
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公开(公告)号：US20230365479A1
公开(公告)日：2023-11-16
申请号：US18044584
申请日：2021-09-01
Applicant: EXXONMOBIL CHEMICAL PATENTS INC.
Inventor： Eric D. Metzger , Ali A. Kheir , Maria Milina , Kathleen M. Keville
CPC classification number: C07C5/2708 , B01J29/40 , B01J35/1019 , B01J35/1023 , B01J2229/42 , C07C2529/40
Abstract: Processes for converting C8 aromatic hydrocarbons. In some embodiments, a process for converting a hydrocarbon feed that can include C8 aromatic hydrocarbons can include feeding the hydrocarbon feed into a conversion zone and contacting the hydrocarbon feed at least partly in a liquid phase with an isomerization catalyst composition in the conversion zone under conversion conditions to effect isomerization of at least a portion of the C8 aromatic hydrocarbons to produce a conversion product rich in para-xylene. In some embodiments, the isomerization catalyst composition can include a zeolite (preferably a ZSM-5 zeolite) that can have a silica (SiO2) to alumina (AI2O3) molar ratio of 10 to 100, a total surface area of 200 m2/g to 700 m2/g, a micropore surface area of 50 m2/g to 600 m2/g, and an external surface area of 55 m2/g to 550 m2/g.
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13.发明申请公开(公告)号：US20220144725A1
公开(公告)日：2022-05-12
申请号：US17434237
申请日：2020-03-25
Applicant: ExxonMobil Chemical Patents Inc.
Inventor： Paul Podsiadlo , Eric D. Metzger , Wenyih F. Lai , Ali A. Kheir , Dominick A. Zurlo , Jocelyn A. Gilcrest , Kathleen M. Keville
Abstract: Novel MEL framework type zeolites can be made to have small crystallite sizes and desirable silica/SiO2 molar ratios. Catalyst compositions comprising such MEL framework type zeolites can be particularly advantageous in isomerization C8 aromatic mixtures. An isomerization process for converting C8 aromatic hydrocarbons can advantageously utilize a catalyst composition comprising a MEL framework type zeolite.
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Patent Agency Ranking
公开(公告)号：US20190225561A1
公开(公告)日：2019-07-25
申请号：US16324788
申请日：2017-08-18
Applicant: ExxonMobil Chemical Patents Inc.
Inventor： Kun Wang , Lorenzo C. DeCaul , Steven W. Levine , Etienne Mazoyer , James R. Lattner , Helge Jaensch , Ali A. Kheir
Abstract: Disclosed herein are processes for producing neopentane. The processes generally relate to demethylating isooctane to produce neopentane. The isooctane may be provided by the alkylation of isobutane with butylenes.
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公开(公告)号：US20190169092A1
公开(公告)日：2019-06-06
申请号：US16324722
申请日：2017-08-18
Applicant: ExxonMobil Chemical Patents Inc.
Inventor： Kun Wang , Lorenzo C. DeCaul , Michele L. Paccagnini , Etienne Mazoyer , James R. Lattner , Helge Jaensch , Ali A. Kheir
Abstract: Disclosed herein are processes for producing neopentane. The processes generally relate to demethylating neohexane and/or neoheptane to produce neopentane. The neohexane and/or neoheptane may be provided by the isomerization of C6-C7 paraffins.
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公开(公告)号：US09758447B2
公开(公告)日：2017-09-12
申请号：US14878753
申请日：2015-10-08
Applicant: ExxonMobil Chemical Patents Inc.
Inventor： Jihad M. Dakka , Lorenzo C. DeCaul , Gregory J. De Martin , Michael Salciccioli , Neeraj Sangar , Aaron B. Pavlish , Ali A. Kheir , Gary D. Mohr
CPC classification number: C07C5/367 , B01J23/626 , B01J29/7476 , B01J37/0205 , B01J37/18 , B01J2229/186 , B01J2229/42 , C07C2/74 , C07C2521/04 , C07C2521/08 , C07C2523/14 , C07C2523/42 , C07C2523/62 , C07C2529/74 , C07C2601/14 , C07C15/14 , C07C13/28
Abstract: In a process for dehydrogenating cyclohexylbenzene and/or alkyl-substituted cyclohexylbenzene compounds, a dehydrogenation catalyst comprising at least one Group 10 metal compound on a support is heated in the presence of hydrogen from a first temperature from 0° C. to 200° C. to a second, higher temperature from 60° C. to 500° C. at a ramp rate no more than 100° C./hour. The dehydrogenation catalyst is contacted with hydrogen at the second temperature for a time from 3 to 300 hours to produce an activated dehydrogenation catalyst. A feed comprising cyclohexylbenzene and/or an alkyl-substituted cyclohexylbenzene compound is then contacted with hydrogen in the presence of the activated dehydrogenation catalyst under conditions effective to produce a dehydrogenation reaction product comprising biphenyl and/or an alkyl-substituted biphenyl compound.
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公开(公告)号：US20160280616A1
公开(公告)日：2016-09-29
申请号：US14976983
申请日：2015-12-21
Applicant: ExxonMobil Chemical Patents Inc.
Inventor： Michael Salciccioli , Jihad M. Dakka , Neeraj Sangar , Lorenzo C. DeCaul , Ali A. Kheir
CPC classification number: C07C2/74 , C07C5/367 , C07C51/265 , C07C67/08 , C07C2521/08 , C07C2523/42 , C07C2529/74 , C07C69/76 , C07C13/18 , C07C13/28 , C07C15/14 , C07C57/46
Abstract: In a process for producing biphenyl compounds, a Cn aromatic hydrocarbon may be hydroalkylated to give C2n cycloalkylaromatic compounds and byproduct Cn saturated cyclic hydrocarbons. The C2n cycloalkylaromatic compounds are dehydrogenated to provide the biphenyl compounds. The Cn saturated cyclic hydrocarbons may also be dehydrogenated back to the corresponding Cn aromatic hydrocarbon, which may be recycled to provide additional feed. Although both the intermediate C2n cycloalkylaromatic compounds and the byproduct Cn saturated cyclic hydrocarbons should be dehydrogenated, at least part of the dehydrogenation of the Cn saturated cyclic hydrocarbons should take place in the absence of C2n or greater hydrocarbons. Thus, dehydrogenation of the byproduct Cn saturated cyclic hydrocarbons should take place at least in part separately from dehydrogenation of the C2n cycloalkylaromatic compounds.
Abstract translation: 在制备联苯化合物的方法中，C n芳族烃可以被加氢烷基化以得到C 2n环烷基芳族化合物和副产物C n饱和环状烃。 将C2n环烷基芳族化合物脱氢以提供联苯化合物。 Cn饱和环状烃也可以脱氢回到相应的C n芳族烃，其可以再循环以提供额外的进料。 虽然中间体C2n环烷基芳族化合物和副产物Cn饱和环状烃都应脱氢，但Cn饱和环状烃的至少部分脱氢应在不存在C2n或更高级烃的情况下进行。 因此，副产物Cn饱和环状烃的脱氢应至少部分地与C2n环烷基芳族化合物的脱氢分开发生。
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18.发明申请Methyl-Substituted Biphenyl Compounds, Their Production and Their Use in the Manufacture of Plasticizers 有权甲基取代的联苯化合物，其生产及其在增塑剂的制造中的应用公开(公告)号：US20140275607A1
公开(公告)日：2014-09-18
申请号：US14201284
申请日：2014-03-07
Applicant: ExxonMobil Chemical Patents Inc.
Inventor： Jihad M. Dakka , Chuansheng Bai , James J. Tanke , Gregory J. De Martin , Mary T. Van Nostrand , Michael Salciccioli , Ali A. Kheir , Neeraj Sangar
CPC classification number: C07C67/08 , C07C2/74 , C07C5/367 , C07C2521/04 , C07C2521/08 , C07C2521/18 , C07C2523/42 , C07C2523/62 , C07C2529/76 , C07C2601/14 , C07C69/76 , C07C15/14 , C07C13/28
Abstract: In a process for producing a methyl-substituted biphenyl compound, at least one methyl-substituted cyclohexylbenzene compound of the formula: wherein each of m and n is independently an integer from 1 to 3, is contacted with a dehydrogenation catalyst under conditions effective to produce a dehydrogenation reaction product comprising at least one methyl-substituted biphenyl compound. The dehydrogenation catalyst comprises an element or compound thereof from Group 10 of the Periodic Table of Elements deposited on a refractory support, such as alumina.
Abstract translation: 在制备甲基取代的联苯化合物的方法中，至少一种下式的甲基取代的环己基苯化合物：其中m和n各自独立地为1至3的整数在有效产生的条件下与脱氢催化剂接触 包含至少一种甲基取代的联苯化合物的脱氢反应产物。 脱氢催化剂包含沉积在耐火载体如氧化铝上的元素周期表第10族元素或其化合物。
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