Integrated coal liquefaction process
    2.
    发明授权
    Integrated coal liquefaction process 失效
    综合煤液化过程

    公开(公告)号:US4125452A

    公开(公告)日:1978-11-14

    申请号:US805366

    申请日:1977-06-10

    申请人: Edward Effron

    发明人: Edward Effron

    摘要: In a process for the liquefaction of coal in which coal liquids containing phenols and other oxygenated compounds are produced during the liquefaction step and later hydrogenated, oxygenated compounds are removed from at least part of the coal liquids in the naphtha and gas oil boiling range prior to the hydrogenation step and employed as a feed stream for the manufacture of a synthesis gas or for other purposes.

    摘要翻译: 在用于液化煤的液化过程中,其中在液化步骤期间产生含有酚类和其它含氧化合物的煤液体,随后被氢化,在石脑油和瓦斯油沸腾范围内的至少部分煤液体中除去含氧化合物, 氢化步骤并用作制造合成气或用于其它目的的进料流。

    Three-stage process for producing ultra-clean distillate products
    3.
    发明授权
    Three-stage process for producing ultra-clean distillate products 失效
    生产超清洁馏分产品的三阶段工艺

    公开(公告)号:US5198099A

    公开(公告)日:1993-03-30

    申请号:US743958

    申请日:1991-08-12

    IPC分类号: C10G65/12

    CPC分类号: C10G65/12

    摘要: A process for producing ultra clean distillate and naphtha products wherein a distillate boiling range stream which contains heteroatoms and aromatics to subjected to three stage processing. The first stage is conventional hydrotreating, wherein the resulting effluent is further hydrotreated, but with a noble metal zeolite catalyst which is typically used for hydrocracking. The effluent from this second stage, which is now substantially free of heteroatoms, is passed to a third stage. This third stage is a hydrocracking stage, the severity of which will determine if the ultimate product will be a distillate or a naphtha.

    摘要翻译: 一种生产超清洁馏出物和石脑油产品的方法,其中含有杂原子和芳族化合物进行三段加工的馏出物沸程流。 第一阶段是常规加氢处理,其中所得流出物进一步加氢处理,但是使用通常用于加氢裂化的贵金属沸石催化剂。 现在基本上不含杂原子的来自该第二阶段的流出物被传送到第三阶段。 第三阶段是加氢裂化阶段,其严重程度将决定最终产品是馏出物还是石脑油。

    Use of hydrogen sulfide to reduce the viscosity of bottoms streams
produced in hydroconversion processes
    4.
    发明授权
    Use of hydrogen sulfide to reduce the viscosity of bottoms streams produced in hydroconversion processes 失效
    使用硫化氢降低在加氢转化过程中产生的底部流的粘度

    公开(公告)号:US4465584A

    公开(公告)日:1984-08-14

    申请号:US474902

    申请日:1983-03-14

    CPC分类号: C10G1/002 C10G2300/107

    摘要: Coal, petroleum residuum and similar carbonaceous feed materials are subjected to hydroconversion in the presence of molecular hydrogen to produce a hydroconversion effluent which is then subjected to one or more separation steps to remove lower molecular weight liquids and produce a heavy bottoms stream containing high molecular weight liquids and unconverted carbonaceous material. The viscosity of the bottoms streams produced in the separation step or steps is prevented from increasing by treating the feed to the separation step or steps with hydrogen sulfide gas prior to or during the separation step or steps. The viscosity of the heavy bottoms stream produced in the final separation step is also controlled by treating these bottoms with hydrogen sulfide gas. In a preferred embodiment of the invention, the effluent from the hydroconversion reactor is subjected to an atmospheric distillation followed by a vacuum distillation and the feeds to these distillations are contacted with hydrogen sulfide during the distillations.

    摘要翻译: 煤,石油渣和类似的碳质进料在分子氢存在下进行加氢转化,以产生加氢转化流出物,然后将其进行一个或多个分离步骤以除去较低分子量的液体并产生含有高分子量的重塔底物流 液体和未转化的碳质材料。 通过在分离步骤或步骤之前或期间通过用硫化氢气体处理分离步骤或步骤的进料来防止在分离步骤或步骤中产生的底部物流的粘度增加。 在最终分离步骤中产生的重塔底物流的粘度也通过用硫化氢气体处理这些塔底物来控制。 在本发明的优选实施方案中,将来自加氢转化反应器的流出物进行常压蒸馏,然后进行真空蒸馏,并且在蒸馏期间将这些蒸馏物的进料与硫化氢接触。

    Coal liquefaction process
    5.
    发明授权
    Coal liquefaction process 失效
    煤液化过程

    公开(公告)号:US4179352A

    公开(公告)日:1979-12-18

    申请号:US602956

    申请日:1975-08-07

    申请人: Edward Effron

    发明人: Edward Effron

    IPC分类号: C10G1/06 C01B3/52 C10G1/00

    摘要: A hydrogenated liquid product is obtained from coal by treating the feed coal with hydrogen-containing gas and a hydrogen-donor solvent in a coal liquefaction reactor, separating the liquefaction reactor product into a vaporous fraction and a normally liquid hydrocarbon fraction, treating the vaporous fraction for the removal of ammonia and acid gases, fractionating the normally liquid hydrocarbon fraction to obtain a distillate fraction and a bottoms fraction boiling above about 1000.degree. F., and thereafter introducing the treated vaporous fraction and at least a portion of the distillate fraction, along with fresh hydrogen, into a catalytic solvent hydrogenation reactor for the production of solvent and additional product liquids. The hydrogenated product is separated into a recycle vapor stream and a liquid stream which is subsequently fractionated to produce naphtha, recycle solvent, additional liquid products, and a bottoms fraction which can be upgraded by hydrogenation, coking, catalytic cracking or the like. This process results in improved catalyst life and activity in the solvent hydrogenation reactor, reduces the gas input to the hydrogenation reactor, reduces the necessity for purging gas from the system, and has other advantages.

    摘要翻译: 通过在煤液化反应器中用含氢气体和氢供体溶剂处理原料煤,从煤中获得氢化液体产物,将液化反应器产物分离成气态馏分和通常液体烃馏分,处理蒸气馏分 为了除去氨和酸性气体,将正常液体烃馏分分馏,得到沸点高于约1000°F的馏出物馏分和塔底馏分,然后将经处理的蒸汽馏分和至少一部分馏出物馏分 用新鲜氢气加入到催化溶剂加氢反应器中,用于生产溶剂和附加产品液体。 将氢化产物分离成再循环蒸气物流和液体物流,其随后被分馏以产生石脑油,再循环溶剂,另外的液体产物和可通过氢化,焦化,催化裂解等升级的塔底馏分。 该方法导致溶剂氢化反应器中的催化剂寿命和活性得到改善,减少了进入氢化反应器的气体输入,降低了从系统中吹扫气体的必要性,并具有其它优点。

    Upflow three-phase fluidized bed coal liquefaction reactor system
    6.
    发明授权
    Upflow three-phase fluidized bed coal liquefaction reactor system 失效
    UPFLOW三相流化床煤液化反应器系统

    公开(公告)号:US3644192A

    公开(公告)日:1972-02-22

    申请号:US3644192D

    申请日:1970-08-28

    IPC分类号: C10G1/04 C10G1/06 C10G1/08

    CPC分类号: C10G1/04 C10G1/065

    摘要: A coal/liquid slurry is conducted upwardly in a three-phase fluidized state through a plurality of vessels connected in series, with the gas generated in each individual vessel being purged to a common header by a pressure control system included in each stage for ensuring control of flow through the reactors. The lead vessel includes the following features: a narrow, bottom entrance section designed to produce a superficial liquid velocity which is higher than the minimum fluidization velocity of the heaviest, largest particles in the slurry, so that all entering particles can be fluidized in the entrance section; an expanded upper section designed to slow the upflow of the slurry to a superficial liquid velocity sufficiently lower than the aforesaid minimum fluidization velocity to carry upwardly all particles which are essentially organic in composition but insufficient to carry upwardly a major portion of particles which are essentially nonorganic in nature, so that such major portion of essentially nonorganic particles settle from the upper section and do not carry over to a subsequent vessel; and a side opening at the intersection of these two sections for the continuous withdrawal of a slurry of those particles which settle from the upper section. The vessels subsequent to the leading vessel each have a uniform diameter smaller than the diameter in the lead vessel, so that particles passed from the lead vessel will not settle in the subsequent vessels. Each subsequent vessel also has vertical internals to provide a close approach to plug flow performance. Also, entry ports are provided at the base of each subsequent vessel for hydrogen gas addition.