Process for producing propylene and hexene from C4 olefin streams
    3.
    发明授权
    Process for producing propylene and hexene from C4 olefin streams 失效
    从C4烯烃流中生产丙烯和己烯的方法

    公开(公告)号:US06777582B2

    公开(公告)日:2004-08-17

    申请号:US10093322

    申请日:2002-03-07

    IPC分类号: C07C604

    摘要: A C3 to C6 hydrogen cut from a cracking unit is processed for the conversion of olefins to propylene and hexene via autometathesis. The autometathesis of a mixed normal butenes feed in the presence of a metathesis catalyst operates without any ethylene in the feed mix to the metathesis reactor. Some fraction of the 2-butene feed may be isomerized to 1-butene and the 1-butene formed plus the 1-butene in the feed react rapidly with the 2-butene to form propylene and 2-pentene. The feed to the reactor also includes the recycle of the 2-pentene formed in the reactor with unreacted butenes to simultaneously form additional propylene and hexene. In one embodiment, some or all of the 3-hexene formed in the reaction is isomerized to 1-hexene. In another embodiment, some portion of the 3-hexene produced in the main metathesis reaction is reacted with ethylene to produce 1-butene without the need for superfractionation. In another embodiment, the 3-hexene product is hydrogenated and recycled back to the cracking heaters.

    摘要翻译: 处理从裂化装置切割的C 3至C 6氢气经由自动化将烯烃转化为丙烯和己烯。 在复分解催化剂存在下,混合的正丁烯进料的自动化在进料混合物中没有任何乙烯运行到复分解反应器。 2-丁烯进料的一部分可以异构化成1-丁烯,并且进料中形成的1-丁烯加上1-丁烯与2-丁烯快速反应形成丙烯和2-戊烯。 反应器的进料还包括在反应器中形成的2-戊烯与未反应的丁烯循环,以同时形成另外的丙烯和己烯。 在一个实施方案中,在反应中形成的部分或全部3-己烯异构化为1-己烯。 在另一个实施方案中,在主复分解反应中产生的一部分3-己烯与乙烯反应生成1-丁烯,而不需要超分级。 在另一个实施方案中,将3-己烯产物氢化并再循环回裂化加热器。

    Cyclohexane oxidation
    4.
    发明授权
    Cyclohexane oxidation 失效
    环己烷氧化

    公开(公告)号:US5780683A

    公开(公告)日:1998-07-14

    申请号:US712478

    申请日:1996-09-11

    IPC分类号: C07C29/50 C07C45/33

    摘要: Cyclohexane is catalytically oxidized to produce cyclohexanol and cyclohexanone and precursors of these products. The product is then catalytically hydrogenated while the product is still at reaction temperature to produce additional cyclohexanol and cyclohexanone from the precursors. The oxidation is carried out in a liquid oxidation reactor at high oxygen concentrations (greater than 30% and preferably greater than 90% oxygen concentration) and at relatively low temperatures (less than 160.degree. C.). The use of the liquid oxidation reactor permits the use of these high oxygen concentrations without forming dangerously high levels of oxygen in the overhead gas phase. The result is an increased yield and selectivity of the desired products. The hydrogenation is carried out in a reactor using a catalyst of palladium supported on carbon.

    摘要翻译: 催化氧化环己烷以产生环己醇和环己酮以及这些产物的前体。 然后将产物催化氢化,同时产物仍处于反应温度以从前体产生另外的环己醇和环己酮。 在高氧浓度(大于30%,优选大于90%氧气浓度)和相对低的温度(小于160℃)的液体氧化反应器中进行氧化。 使用液体氧化反应器允许使用这些高氧浓度,而不会在塔顶气相中形成危险的高水平的氧。 结果是所需产物的产率和选择性提高。 氢化在反应器中使用负载在碳上的钯催化剂进行。

    Cracking of heavy carbonaceous liquid feedstocks utilizing hydrogen
donor solvent
    5.
    发明授权
    Cracking of heavy carbonaceous liquid feedstocks utilizing hydrogen donor solvent 失效
    使用氢供体溶剂裂解重质含碳液体原料

    公开(公告)号:US4363716A

    公开(公告)日:1982-12-14

    申请号:US238344

    申请日:1981-02-26

    CPC分类号: C10G65/12 C10G47/34

    摘要: Heavy carbonaceous liquid having a melting point below 250.degree. C. is upgraded to lighter products by hydrogen donor solvent cracking, using recycled solvent derived at least in part from a middle distillate fraction of either the heavy carbonaceous liquid or from the cracked products which is subjected to one or more catalytic hydroprocessing steps before recycling.

    摘要翻译: 熔点低于250℃的重质碳质液体通过氢供体溶剂裂解升级为较轻的产物,使用至少部分从重质碳质液体的中间馏分馏分或经受过的裂化产物得到的再循环溶剂 在回收之前的一个或多个催化加氢处理步骤。

    Co-processing of carbonaceous solids and petroleum oil
    7.
    发明授权
    Co-processing of carbonaceous solids and petroleum oil 失效
    碳质固体和石油的共处理

    公开(公告)号:US5120429A

    公开(公告)日:1992-06-09

    申请号:US71812

    申请日:1987-07-10

    IPC分类号: C10G1/00

    CPC分类号: C10G1/006

    摘要: In a process for producing distillates from coal by a first stage thermal liquefaction followed by a catalytic hydrogenation, liquefaction solvent is added at points spaced over the length of the thermal liquefaction heater.Coal may be co-processed with petroleum oil by adding pre-hydrogenated oil to the first stage or unhydrogenated oil to the second stage.

    摘要翻译: 在通过第一阶段热液化然后进行催化氢化从煤中生产馏出物的方法中,在热液化加热器的长度上间隔开的点加入液化溶剂。 可以通过向第一阶段加入预氢化油或将未氢化的油加入到第二阶段来与煤油共同处理。

    Processing C4 olefin streams for the maximum production of propylene
    8.
    发明授权
    Processing C4 olefin streams for the maximum production of propylene 有权
    加工C4烯烃流以最大限度地生产丙烯

    公开(公告)号:US07214841B2

    公开(公告)日:2007-05-08

    申请号:US10620186

    申请日:2003-07-15

    IPC分类号: C07C6/04

    摘要: In order to maximize the production of propylene when the external supply of ethylene is limited, the C4 cut from a hydrocarbon cracking process is first subjected to autometathesis prior to any isobutylene removal and without any ethylene addition. This favors the reactions which produce propylene and pentenes. The ethylene and propylene produced are then removed leaving a stream of the C4's and heavier components. The C5 and heavier components are then removed leaving a mixture of 1-butene, 2-butene, isobutylene, and iso- and normal butanes. The isobutylene is next removed preferably by a catalytic distillation hydroisomerization de-isobutyleneizer. The isobutylene-free C4 stream is then mixed with the product ethylene removed from the autometathesis product together with any fresh external ethylene needed and subjected to conventional metathesis producing additional propylene.

    摘要翻译: 为了在限制乙烯的外部供应时最大限度地生产丙烯,从烃裂解过程切割的C 4 O 3首先在任何异丁烯去除之前和没有任何乙烯加成之前进行自动化。 这有利于产生丙烯和戊烯的反应。 然后除去生成的乙烯和丙烯,留下C 4+和较重组分的流。 然后除去C 5+和更重的组分,留下1-丁烯,2-丁烯,异丁烯和异丁烷和正丁烷的混合物。 接下来,异丁烯通过催化蒸馏加氢异构化脱异丁烯化处理。 然后将不含异丁烯的C 4 H 4流与从自动分离产物中除去的产物乙烯与所需的任何新鲜的外部乙烯混合,并进行常规复分解产生另外的丙烯。

    Liquefaction of solid carbonaceous material with catalyst recycle
    9.
    发明授权
    Liquefaction of solid carbonaceous material with catalyst recycle 失效
    固体碳质材料与催化剂循环的液化

    公开(公告)号:US5122260A

    公开(公告)日:1992-06-16

    申请号:US295006

    申请日:1989-01-09

    IPC分类号: C10G1/00

    CPC分类号: C10G1/006

    摘要: In the two stage liquefaction of a carbonaceous solid such as coal wherein coal is liquefied in a first stage in the presence of a liquefaction solvent and the first stage effluent is hydrogenated in the presence of a supported hydrogenation catalyst in a second stage, catalyst which has been previously employed in the second stage and comminuted to a particle size distribution equivalent to 100% passing through U.S. 100 Mesh, is passed to the first stage to improve the overall operation.

    摘要翻译: 在煤液中的碳质固体的两阶段液化中,其中在液化溶剂存在下,在第一阶段液化了煤,第一阶段流出物在第二阶段的负载式氢化催化剂存在下被氢化,所述催化剂具有 以前在第二阶段被雇用,粉碎成相当于100%通过美国100网的粒度分布,被传递到第一阶段以改善整体运作。