Processes and systems for upgrading alkanes and alkyl aromatic hydrocarbons

    公开(公告)号:US11773336B2

    公开(公告)日:2023-10-03

    申请号:US17745433

    申请日:2022-05-16

    IPC分类号: C10G29/04 C10G25/00 C10G31/06

    摘要: Processes for upgrading a hydrocarbon. In some embodiments, the process can include contacting a hydrocarbon-containing feed with a first catalyst that can include a Group 8-10 element disposed on a support within a first conversion zone to effect dehydrogenation, dehydroaromatization, and/or dehydrocyclization of a portion of the feed to produce first conversion zone effluent that includes one or more upgraded hydrocarbons, molecular hydrogen, and unconverted feed. The process can also include contacting the first conversion zone effluent with a second catalyst that can include a Group 8-10 element disposed on a support within a second conversion zone to effect dehydrogenation, dehydroaromatization, and/or dehydrocyclization of at least a portion of the unconverted feed to produce a second conversion zone effluent that includes an additional quantity of upgraded hydrocarbon(s) and molecular hydrogen. A temperature of the second conversion zone effluent can be greater than a temperature of the first conversion zone effluent.

    Processes and Systems for Upgrading Alkanes and Alkyl Aromatic Hydrocarbons

    公开(公告)号:US20220275289A1

    公开(公告)日:2022-09-01

    申请号:US17745433

    申请日:2022-05-16

    IPC分类号: C10G29/04 C10G31/06 C10G25/00

    摘要: Processes for upgrading a hydrocarbon. In some embodiments, the process can include contacting a hydrocarbon-containing feed with a first catalyst that can include a Group 8-10 element disposed on a support within a first conversion zone to effect dehydrogenation, dehydroaromatization, and/or dehydrocyclization of a portion of the feed to produce first conversion zone effluent that includes one or more upgraded hydrocarbons, molecular hydrogen, and unconverted feed. The process can also include contacting the first conversion zone effluent with a second catalyst that can include a Group 8-10 element disposed on a support within a second conversion zone to effect dehydrogenation, dehydroaromatization, and/or dehydrocyclization of at least a portion of the unconverted feed to produce a second conversion zone effluent that includes an additional quantity of upgraded hydrocarbon(s) and molecular hydrogen. A temperature of the second conversion zone effluent can be greater than a temperature of the first conversion zone effluent.

    Process for producing phenol and/or cyclohexanone from cyclohexylbenzene
    29.
    发明授权
    Process for producing phenol and/or cyclohexanone from cyclohexylbenzene 有权
    从环己基苯生产苯酚和/或环己酮的方法

    公开(公告)号:US09278897B2

    公开(公告)日:2016-03-08

    申请号:US14422444

    申请日:2013-09-12

    摘要: In a process for producing phenol and/or cyclohexanone, cyclohexylbenzene is contacted with an oxygen-containing gas to produce an oxidation effluent containing cyclohexylbenzene hydroperoxide. At least a portion of the cyclohexylbenzene hydroperoxide is then contacted with a cleavage catalyst to produce a cleavage effluent containing phenol and cyclohexanone and by-products including phenylcyclohexanol. The cleavage effluent or a neutralized product thereof also comprises at least one heteroatom-containing compound, which is separated from the cleavage effluent and/or the neutralized product thereof to leave a cleavage fraction lean in the heteroatom-containing compound and containing at least a portion of the phenylcyclohexanol. At least a portion of the phenylcyclohexanol is then contacted with a dehydration catalyst comprising a molecular sieve of the MCM-22 type to convert at least a portion of the phenylcyclohexanol to phenylcyclohexene.

    摘要翻译: 在生产苯酚和/或环己酮的方法中,使环己基苯与含氧气体接触以产生含有环己基苯氢过氧化物的氧化流出物。 然后将至少一部分环己基苯氢过氧化物与裂解催化剂接触,以产生包含苯酚和环己酮的裂解流出物以及包括苯基环己醇在内的副产物。 裂解流出物或其中和产物还包含至少一种含杂原子的化合物,其与裂解流出物和/或其中和产物分离,以使含有杂原子的化合物中的裂解级分残留并含有至少一部分 的苯基环己醇。 然后至少一部分苯基环己醇与包含MCM-22型分子筛的脱水催化剂接触,以将至少一部分苯基环己醇转化为苯基环己烯。

    Processes for Producing Phenol
    30.
    发明申请
    Processes for Producing Phenol 有权
    生产苯酚的方法

    公开(公告)号:US20150315111A1

    公开(公告)日:2015-11-05

    申请号:US14800042

    申请日:2015-07-15

    摘要: Disclosed herein is a process for producing phenol. The process includes oxidizing at least a portion of a feed comprising cyclohexylbenzene to produce an oxidation composition comprising cyclohexyl-1-phenyl-1-hydroperoxide. The oxidation composition may then be cleaved in the presence of an acid catalyst to produce a cleavage reaction mixture comprising the acid catalyst, phenol and cyclohexanone. At least a portion of the cleavage reaction mixture may be neutralized with a basic material to form a treated cleavage reaction mixture. In various embodiments, the treated cleavage reaction mixture contains no greater than 50 wppm of the acid catalyst or no greater than 50 wppm of the basic material.

    摘要翻译: 本文公开了一种生产苯酚的方法。 该方法包括氧化至少一部分包含环己基苯的进料以产生包含环己基-1-苯基-1-氢过氧化物的氧化组合物。 然后可以在酸催化剂的存在下将氧化组合物切割,以产生包含酸催化剂,苯酚和环己酮的裂解反应混合物。 裂解反应混合物的至少一部分可以用碱性物质中和以形成经处理的裂解反应混合物。 在各种实施方案中,处理的裂解反应混合物含有不大于50wppm的酸催化剂或不大于50wppm的碱性物质。