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1. 发明授权

US5660715A Apparatus and method for quenching in hydroprocessing of a hydrocarbon feed stream 失效
标题翻译：用于在烃进料流的加氢处理中淬火的装置和方法
公开(公告)号：US5660715A
公开(公告)日：1997-08-26
申请号：US466863
申请日：1995-06-06
申请人： Harold J. Trimble , Bruce E. Reynolds , Robert W. Bachtel , Robert J. Klett , David N. Brossard , David E. Earls
发明人： Harold J. Trimble , Bruce E. Reynolds , Robert W. Bachtel , Robert J. Klett , David N. Brossard , David E. Earls
IPC分类号： B01J8/00 , B01J8/12 , B01J8/18 , B01J8/22 , C10G49/00 , C10G49/14 , C10G11/18 , C10G35/04
CPC分类号： C10G49/14 , B01J8/003 , B01J8/008 , B01J8/125 , B01J8/1881 , B01J8/22 , C10G49/002 , B01J2208/00884
摘要： This invention makes possible substantially continuous flow of uniformly distributed hydrogen and hydrocarbon liquid across a densely packed catalyst bed which substantially fills the entire volume of a reactor vessel. Catalyst are selected to be essentially the same density, shape and size at a design feed rate of liquids and gas to prevent ebullation of the packed catalyst bed at the design feed rates. The liquid and gas components of the hydrocarbon feed stream flow into the bed of catalyst and a quenching medium, which is preferably a liquid, is injected into the bed of catalyst. Injection of a liquid quench reduces the gas component of the hydrocarbon feed stream while simultaneously increasing the residence time and reducing the liquid velocity of the liquid component of the hydrocarbon feed stream within the substantially packed bed of catalyst. Injection of a liquid quench also increases penetration and contact of the liquid component into and on the surface area of the catalyst while simultaneously decreasing the viscosity of the liquid component. An apparatus for quenching in hydroprocessing of a hydrocarbon feed stream.
摘要翻译：本发明使得均匀分布的氢气和烃液体可以基本上连续地流过密集填充的催化剂床，其基本上填充反应堆容器的整个体积。选择催化剂在液体和气体的设计进料速率下基本上具有相同的密度，形状和尺寸，以防止填充催化剂床以设计进料速率进行沸腾。烃进料流的液体和气体组分流入催化剂床，并将优选液体的淬火介质注入催化剂床中。液体淬火的注入减少了烃进料流的气体组分，同时增加了催化剂基本上填充的床内的烃进料流的液体组分的停留时间和液体速度。喷射液体淬火也增加了液体组分在催化剂表面积上和之间的渗透和接触，同时降低了液体组分的粘度。一种用于在烃进料流的加氢处理中淬火的装置。

2. 发明授权

US5492617A Apparatus and method for quenching in hydroprocessing of a hydrocarbon feed stream 失效
标题翻译：用于在烃进料流的加氢处理中淬火的装置和方法
公开(公告)号：US5492617A
公开(公告)日：1996-02-20
申请号：US273526
申请日：1994-07-11
申请人： Harold J. Trimble , Bruce E. Reynolds , Robert W. Bachtel , Robert J. Klett , David N. Brossard , David E. Earls
发明人： Harold J. Trimble , Bruce E. Reynolds , Robert W. Bachtel , Robert J. Klett , David N. Brossard , David E. Earls
IPC分类号： B01J8/00 , B01J8/12 , B01J8/18 , B01J8/22 , C10G49/00 , C10G49/14 , C10G11/18 , C10G35/14
CPC分类号： C10G49/14 , B01J8/003 , B01J8/008 , B01J8/125 , B01J8/1881 , B01J8/22 , C10G49/002 , B01J2208/00884
摘要： This invention makes possible substantially continuous flow of uniformly distributed hydrogen and hydrocarbon liquid across a densely packed catalyst bed which substantially fills the entire volume of a reactor vessel. Catalyst are selected to be essentially the same density, shape and size at a design feed rate of liquids and gas to prevent ebullation of the packed catalyst bed at the design feed rates. The liquid and gas components of the hydrocarbon feed stream flow into the bed of catalyst and a quenching medium, which is preferably a liquid, is injected into the bed of catalyst. Injection of a liquid quench reduces the gas component of the hydrocarbon feed stream while simultaneously increasing the residence time and reducing the liquid velocity of the liquid component of the hydrocarbon feed stream within the substantially packed bed of catalyst. Injection of a liquid quench also increases penetration and contact of the liquid component into and on the surface area of the catalyst while simultaneously decreasing the viscosity of the liquid component. An apparatus for quenching in hydroprocessing of a hydrocarbon feed stream.
摘要翻译：本发明使得均匀分布的氢气和烃液体可以基本上连续地流过密集填充的催化剂床，其基本上填充反应堆容器的整个体积。选择催化剂在液体和气体的设计进料速率下基本上具有相同的密度，形状和尺寸，以防止填充催化剂床以设计进料速率进行沸腾。烃进料流的液体和气体组分流入催化剂床，并将优选液体的淬火介质注入催化剂床中。液体淬火的注入减少了烃进料流的气体组分，同时增加了催化剂基本上填充的床内的烃进料流的液体组分的停留时间和液体速度。喷射液体淬火也增加了液体组分在催化剂表面积上和之间的渗透和接触，同时降低了液体组分的粘度。一种用于在烃进料流的加氢处理中淬火的装置。

3. 发明授权

US5648051A Apparatus and method for quenching in hydroprocessing of a hydrocarbon feed stream 失效
标题翻译：用于在烃进料流的加氢处理中淬火的装置和方法
公开(公告)号：US5648051A
公开(公告)日：1997-07-15
申请号：US468111
申请日：1995-06-06
申请人： Harold J. Trimble , Bruce E. Reynolds , Robert W. Bachtel , Robert J. Klett , David N. Brossard , David E. Earls
发明人： Harold J. Trimble , Bruce E. Reynolds , Robert W. Bachtel , Robert J. Klett , David N. Brossard , David E. Earls
IPC分类号： B01J8/00 , B01J8/12 , B01J8/18 , B01J8/22 , C10G49/00 , C10G49/14 , F28D21/00 , B01J23/90
CPC分类号： C10G49/14 , B01J8/003 , B01J8/008 , B01J8/125 , B01J8/1881 , B01J8/22 , C10G49/002 , B01J2208/00884
摘要： An apparatus for quenching in hydroprocessing of a hydrocarbon feed stream, which provides a substantially continuous flow of uniformly distributed hydrogen and hydrocarbon liquid across a densely packed catalyst bed which substantially fills the entire volume of a reactor vessel. Catalyst are selected to be essentially the same density, shape and size at a design feed rate of liquids and gas to prevent ebullation of the packed catalyst bed at the design feed rates. The liquid and gas components of the hydrocarbon feed stream flow into the bed of catalyst and a quenching medium, which is preferably a liquid, is injected into the bed of catalyst. Injection of a liquid quench reduces the gas component of the hydrocarbon feed stream while simultaneously increasing the residence time and reducing the liquid velocity of the liquid component of the hydrocarbon feed stream within the substantially packed bed of catalyst. Injection of a liquid quench also increases penetration and contact of the liquid component into and on the surface area of the catalyst while simultaneously decreasing the viscosity of the liquid component.
摘要翻译：一种用于在烃进料流的加氢处理中淬火的装置，其提供基本上连续的均匀分布的氢气和烃液体流过密集填充的催化剂床，其基本上填充反应器容器的整个体积。选择催化剂在液体和气体的设计进料速率下基本上具有相同的密度，形状和尺寸，以防止填充催化剂床以设计进料速率进行沸腾。烃进料流的液体和气体组分流入催化剂床，并将优选液体的淬火介质注入催化剂床中。液体淬火的注入减少了烃进料流的气体组分，同时增加了催化剂基本上填充的床内的烃进料流的液体组分的停留时间和液体速度。喷射液体淬火也增加了液体组分在催化剂表面积上和之间的渗透和接触，同时降低了液体组分的粘度。

4. 发明授权

US5603904A Apparatus for catalyst replacement 失效
标题翻译：催化剂更换装置
公开(公告)号：US5603904A
公开(公告)日：1997-02-18
申请号：US624195
申请日：1996-03-28
申请人： Robert W. Bachtel , Yoshitomo Ohara , Toshio Ishizuka , Tsunehiko Hiraga , Krishniah Parimi , David E. Earls
发明人： Robert W. Bachtel , Yoshitomo Ohara , Toshio Ishizuka , Tsunehiko Hiraga , Krishniah Parimi , David E. Earls
IPC分类号： B01J8/00 , B01J8/12 , B01J8/44 , B01J19/30 , C10G49/00 , C10G49/12 , C10G49/14 , B01J8/18
CPC分类号： C10G49/14 , B01J19/305 , B01J8/008 , B01J8/12 , B01J8/44 , C10G49/002 , C10G49/12 , B01J2208/00884
摘要： A light-weight and easily manufacturable catalyst support structure is provided, which allows fluid flow into a catalyst bed in uniform distribution. The support structure is formed in a cone-like shape in which the diameter enlarges upward. The support structure comprises a shell-like support member, a first mesh layer comprising thick mesh elements, and a second mesh layer having a mesh size which does not allow catalytic particulates to pass through. The first mesh layer overlays the support member, and the second mesh layer overlays the first mesh layer. The shell-like support member includes a circular bottom plate extending perpendicular to the center line of the reactor, and a side wall having a truncated cone shape which extends upward from the edge of the bottom plate. The bottom plate and the side wall are primarily made of perforated plates through which the fluid passes. A plurality of cylindrical flow guides of different diameters are provided underneath the shell-like support member.
摘要翻译：提供了一种重量轻且容易制造的催化剂载体结构，其允许流体以均匀分布流入催化剂床。支撑结构形成为锥形，其中直径向上扩大。支撑结构包括壳状支撑构件，包括厚网状元件的第一网格层和具有不允许催化剂颗粒通过的网孔大小的第二网格层。第一网格层覆盖支撑构件，并且第二网格层覆盖第一网格层。壳状支撑构件包括垂直于反应器的中心线延伸的圆形底板，以及具有从底板的边缘向上延伸的截头圆锥形状的侧壁。底板和侧壁主要由多孔板制成，液体通过该板。在壳状支撑构件的下方设置有多个不同直径的圆柱形流动引导件。

5. 发明授权

US5885534A Gas pocket distributor for hydroprocessing a hydrocarbon feed stream 失效
标题翻译：用于加氢处理烃进料流的气体口袋分配器
公开(公告)号：US5885534A
公开(公告)日：1999-03-23
申请号：US617464
申请日：1996-03-18
申请人： Bruce E. Reynolds , Bruce E. Stangeland , Krishniah Parimi , Robert W. Bachtel
发明人： Bruce E. Reynolds , Bruce E. Stangeland , Krishniah Parimi , Robert W. Bachtel
IPC分类号： C10G49/14 , B01F5/04 , B01J8/00 , B01J8/02 , B01J8/12 , B01J8/18 , B01J8/22 , C10G45/16 , C10G49/00 , C10G49/12
CPC分类号： B01F5/0475 , B01F5/0493 , B01J8/008 , B01J8/0278 , B01J8/1818 , B01J8/22 , C10G49/002 , Y10S585/921 , Y10S585/922
摘要： A distributor assembly for hydroprocessing a hydrocarbon mixture of hydrogen-containing gas and liquid hydrocarbon is presented. The distributor assembly has a circular plate with a plurality of hollow risers bound thereto for distributing hydrogen-containing gas and liquid hydrocarbon through openings in the circular plate member. Each of the hollow risers has a tubular opening in its associated side. The distributor assembly is connected to an internal wall of a reactor. A method is also presented for hydroprocessing a hydrocarbon feed stream comprising flowing a mixture of hydrogen-containing gas and liquid hydrocarbon into a reactor zone to produce evolved hydrogen-containing gas; and flowing the mixture of hydrogen-containing gas and liquid hydrocarbon through a plurality of tubular zones while admixing simultaneously therewith the evolved hydrogen-containing gas.
摘要翻译：提出了一种用于加氢处理含氢气体和液态烃的烃混合物的分配器组件。分配器组件具有圆形板，其具有与其结合的多个中空立管，用于通过圆形板构件中的开口分配含氢气体和液体烃。每个中空立管在其相关联的侧面具有管状开口。分配器组件连接到反应器的内壁。还提出了用于加氢处理烃进料流的方法，包括将含氢气体和液态烃的混合物流入反应器区域以产生放出的含氢气体; 并且使含氢气体和液态烃的混合物通过多个管状区域同时与放出的含氢气体同时混合。

6. 发明授权

US5958220A Gas-pocket distributor and method for hydroprocessing a hydrocarbon feed stream 失效
标题翻译：用于加氢处理烃进料流的气袋分配器和方法
公开(公告)号：US5958220A
公开(公告)日：1999-09-28
申请号：US198592
申请日：1998-11-23
申请人： Bruce E. Reynolds , Bruce E. Stangeland , Krishniah Parimi , Robert W. Bachtel
发明人： Bruce E. Reynolds , Bruce E. Stangeland , Krishniah Parimi , Robert W. Bachtel
IPC分类号： C10G49/14 , B01F5/04 , B01J8/00 , B01J8/02 , B01J8/12 , B01J8/18 , B01J8/22 , C10G45/16 , C10G49/00 , C10G49/12 , C10G47/02
CPC分类号： B01F5/0475 , B01F5/0493 , B01J8/008 , B01J8/0278 , B01J8/1818 , B01J8/22 , C10G49/002 , Y10S585/921 , Y10S585/922
摘要： A distributor assembly for hydroprocessing a hydrocarbon mixture of hydrogen-containing gas and liquid hydrocarbon is presented. The distributor assembly has a circular plate with a plurality of hollow risers bound thereto for distributing hydrogen-containing gas and liquid hydrocarbon through openings in the circular plate member. Each of the hollow risers has a tubular opening In its associated side. The distributor assembly is connected to an internal wall of a reactor. A method is also presented for hydroprocessing a hydrocarbon feed stream comprising flowing a mixture of hydrogen-containing gas and liquid hydrocarbon into a reactor zone to produce evolved hydrogen-containing gas; and flowing the mixture of hydrogen-containing gas and liquid hydrocarbon through a plurality of tubular zones while admixing simultaneously therewith the evolved hydrogen-containing gas.
摘要翻译：提出了一种用于加氢处理含氢气体和液态烃的烃混合物的分配器组件。分配器组件具有圆形板，其具有与其结合的多个中空立管，用于通过圆形板构件中的开口分配含氢气体和液体烃。每个空心立管在其相关联的侧面具有管状开口。分配器组件连接到反应器的内壁。还提出了用于加氢处理烃进料流的方法，包括将含氢气体和液态烃的混合物流入反应器区域以产生放出的含氢气体; 并且使含氢气体和液态烃的混合物通过多个管状区域同时与放出的含氢气体同时混合。

7. 发明授权

US5082551A Hydroconversion effluent separation process 失效
标题翻译：加氢转化废水分离过程
公开(公告)号：US5082551A
公开(公告)日：1992-01-21
申请号：US560223
申请日：1990-07-25
申请人： Bruce E. Reynolds , Donald A. Bea , Robert W. Bachtel
发明人： Bruce E. Reynolds , Donald A. Bea , Robert W. Bachtel
IPC分类号： C10G49/00 , C10G49/22
CPC分类号： C10G49/22 , C10G49/007
摘要： A hydroconversion effluent separation process is provided.The effluent from the hydroconversion zone is passed to a hot high pressure separation zone. The gas phase from that zone is then passed to a cold high pressure separation zone while the liquid hydrocarbon bottoms is passed to a hot low pressure separation zone. The gas phase is partially condensed in the cold high pressure separation zone to obtain a hydrogen-rich gas and a liquid hydrocarbon bottoms. A portion of the hydrogen-rich gas is recycled to the hydroconversion zone. A second portion is sent to a hydrogen purification step, most preferably by membrane separation, and the purified gas is recycled to the hydroconversion zone. The overhead from the hot low pressure separation is fed to a cold low pressure separation zone. The gas phase from the cold low pressure separation zone is recycled to the hydroconversion zone. Preferably, two cold low pressure separation zones are utilized in the process.
摘要翻译：提供加氢转化废水分离过程。来自加氢转化区的流出物被传递到热的高压分离区。然后将来自该区域的气相传递到冷的高压分离区，同时液体烃底部通入热的低压分离区。气相在冷高压分离区中部分冷凝，得到富氢气体和液态烃底物。一部分富氢气体被再循环到加氢转化区。将第二部分送至氢气净化步骤，最优选通过膜分离，并将纯化的气体再循环至加氢转化区。来自热低压分离的塔顶馏出物被送入冷的低压分离区。来自冷低压分离区的气相再循环到加氢转化区。优选地，在该过程中使用两个冷的低压分离区。

8. 发明授权

US5498327A Catalyst, method and apparatus for an on-stream particle replacement system for countercurrent contact of a gas and liquid feed stream with a packed bed 失效
标题翻译：用于气体和液体进料流与填充床的逆流接触的在线颗粒更换系统的催化剂，方法和装置
公开(公告)号：US5498327A
公开(公告)日：1996-03-12
申请号：US466655
申请日：1995-06-06
申请人： Bruce E. Stangeland , David C. Kramer , David S. Smith , James T. McCall , Georgieanne L. Scheuerman , Robert W. Bachtel , David R. Johnson
发明人： Bruce E. Stangeland , David C. Kramer , David S. Smith , James T. McCall , Georgieanne L. Scheuerman , Robert W. Bachtel , David R. Johnson
IPC分类号： B01J8/00 , B01J8/12 , B01J8/18 , B01J8/22 , C10G35/10 , C10G45/00 , C10G49/00 , C10G49/14 , C10G11/18
CPC分类号： B01J8/003 , B01J8/008 , B01J8/125 , B01J8/1881 , B01J8/22 , C10G49/002 , C10G49/14 , B01J2208/00884
摘要： This invention makes possible substantially continuous flow of uniformly distributed hydrogen and hydrocarbon liquid across a densely packed catalyst bed to fill substantially the entire volume of a reactor vessel by introducing the fluids as alternate annular rings of gas and liquid (i.e. a mixture of liquid hydrocarbon and a hydrogen-containing gas) at a rate insufficient to levitate or ebullate the catalyst bed. Catalyst are selected by density, shape and size at a design feed rate of liquids and gas to prevent ebullation of the packed bed at the design feed rates. Catalysts are selected by measuring bed expansion, such as in a large pilot plant run, with hydrocarbon, hydrogen, and catalyst at the design pressures and flow velocities. The liquid and gas components of the feed flow into the bed in alternate annular rings across the full area of the bed. At the desired flow rate, such catalyst continually flows in a plug-like manner downwardly through the reactor vessel by introducing fresh catalyst at the top of the catalyst bed by laminarly flowing such catalyst in a liquid stream on a periodic or semicontinuous basis. Catalyst is similarly removed by laminarly flowing catalyst particles in a liquid stream out of the bottom of the catalyst bed.
摘要翻译：本发明使得均匀分布的氢气和烃液体可以在密集填充的催化剂床上基本连续地流动，以通过将流体作为气体和液体的替代环形环（即，液体烃和液体烃的混合物）引入反应器容器的基本整个体积含氢气体），其速率不足以使催化剂床漂浮或沸腾。在液体和气体的设计进料速率下，通过密度，形状和尺寸选择催化剂，以防止填料床以设计进料速率进行沸腾。通过在设计压力和流速下测量床膨胀，例如在大型中试设备运行中与烃，氢气和催化剂进行选择。进料床的液体和气体组分在床的整个区域内以交替的环形环流入床中。以期望的流速，这种催化剂以塞子状方式向下延伸穿过反应器容器，通过在催化剂床的顶部引入新鲜的催化剂，通过在液体流中以周期性或半连续的方式层流流动这种催化剂。催化剂类似地通过层流流动的催化剂颗粒在催化剂床底部的液体流中除去。

9. 发明授权

US5733440A Catalyst, method and apparatus for an on-stream particle replacement system for countercurrent contact of a gas and liquid feed stream with a packed bed 失效
标题翻译：用于气体和液体进料流与填充床的逆流接触的在线颗粒更换系统的催化剂，方法和装置
公开(公告)号：US5733440A
公开(公告)日：1998-03-31
申请号：US748942
申请日：1996-11-14
申请人： Bruce E. Stangeland , David C. Kramer , David S. Smith , James T. McCall , Georgieanna L. Scheuerman , Robert W. Bachtel , David R. Johnson
发明人： Bruce E. Stangeland , David C. Kramer , David S. Smith , James T. McCall , Georgieanna L. Scheuerman , Robert W. Bachtel , David R. Johnson
IPC分类号： B01J8/00 , B01J8/12 , B01J8/18 , B01J8/22 , C10G35/10 , C10G45/00 , C10G49/00 , C10G49/14 , C10G35/14
CPC分类号： B01J8/003 , B01J8/008 , B01J8/125 , B01J8/1881 , B01J8/22 , C10G49/002 , C10G49/14 , B01J2208/00884
摘要： This invention makes possible substantially continuous flow of uniformly distributed hydrogen and hydrocarbon liquid across a densely packed catalyst bed to fill substantially the entire volume of a reactor vessel by introducing the fluids as alternate annular rings of gas and liquid (i.e. a mixture of liquid hydrocarbon and a hydrogen-containing gas) at a rate insufficient to levitate or ebullate the catalyst bed. Catalyst are selected by density, shape and size at a design feed rate of liquids and gas to prevent ebullation of the packed bed at the design feed rates. Catalysts are selected by measuring bed expansion, such as in a large pilot plant run, with hydrocarbon, hydrogen, and catalyst at the design pressures and flow velocities. The liquid and gas components of the feed flow into the bed in alternate annular rings across the full area of the bed. At the desired flow rate, such catalyst continually flows in a plug-like manner downwardly through the reactor vessel by introducing fresh catalyst at the top of the catalyst bed by laminarly flowing such catalyst in a liquid stream on a periodic or semicontinuous basis. Catalyst is similarly removed by laminarly flowing catalyst particles in a liquid stream out of the bottom of the catalyst bed. Intake for such flow is out of direct contact with the stream of gas flowing through the bed and the flow path is substantially constant in cross-sectional area and greater in diameter by several times than the diameter of the catalyst particles. The catalyst of this invention produces a plug-flowing substantially packed bed of hydroprocessing catalyst which occupies at least about 75% by volume of the reactor volume.
摘要翻译：本发明使得均匀分布的氢气和烃液体可以在密集填充的催化剂床上基本连续地流动，以通过将流体作为气体和液体的替代环形环（即液体烃和液体烃的混合物）引入反应器容器的基本整个体积含氢气体），其速率不足以使催化剂床漂浮或沸腾。在液体和气体的设计进料速率下，通过密度，形状和尺寸选择催化剂，以防止填料床以设计进料速率进行沸腾。通过在设计压力和流速下测量床膨胀，例如在大型中试设备运行中与烃，氢气和催化剂进行选择。进料床的液体和气体组分在床的整个区域内以交替的环形环流入床中。以期望的流速，这种催化剂以塞子状方式向下延伸穿过反应器容器，通过在催化剂床的顶部引入新鲜的催化剂，通过在液体流中以周期性或半连续的方式层流流动这种催化剂。催化剂类似地通过层流流动的催化剂颗粒在催化剂床底部的液体流中除去。这种流动的吸入不与流过床的气体流直接接触，并且流动通道在横截面积上基本上恒定，并且直径大于催化剂颗粒直径的几倍。本发明的催化剂产生占据反应器体积的至少约75体积％的加氢处理催化剂的堵塞流动基本上填充的床。

10. 发明授权

US5522983A Hydrocarbon hydroconversion process 失效
标题翻译：烃加氢转化过程
公开(公告)号：US5522983A
公开(公告)日：1996-06-04
申请号：US832170
申请日：1992-02-06
申请人： Dennis R. Cash , Robert W. Bachtel
发明人： Dennis R. Cash , Robert W. Bachtel
IPC分类号： C10G65/10 , C10G65/12
CPC分类号： C10G65/12 , C10G65/10
摘要： A process is provided for converting a hydrocarbon feedstock comprising the steps of introducing the hydrocarbon feedstock to a first hydroconversion zone at superatmospheric pressure and at a temperature between about 450.degree. F. and about 850.degree. F. in the presence of hydrogen, the hydrogen flowing in a countercurrent relationship to the hydrocarbon feedstock, to form a hydrogen-rich vapor effluent and a hydrocarbon-rich liquid effluent; reacting the hydrogen-rich vapor effluent in a second hydroconversion zone to form a converted vapor effluent; and introducing a portion of the hydrocarbon-rich liquid effluent to the second hydroconversion zone in countercurrent relationship to the hydrogen-rich vapor effluent. By recycling to the second hydroconversion zone a stream having sufficiently high boiling range that it remains a liquid, a greater range of operating conditions are possible in the second hydroconversion zone, thus allowing for higher conversions and product yields.
摘要翻译：提供了一种用于转化烃原料的方法，包括以下步骤：在氢气存在下，在超大气压和约450°F至约850°F的温度下将烃原料引入第一加氢转化区，氢气流动与烃原料逆流关系，形成富氢蒸汽流出物和富烃液体流出物; 使富氢蒸汽流出物在第二加氢转化区中反应以形成转化的蒸汽流出物; 并将富含烃的液体流出物的一部分与富氢蒸气流出物逆流地引入第二加氢转化区。通过再循环到第二加氢转化区，具有足够高沸点范围的物流，其保持液体，在第二加氢转化区可能有更大范围的操作条件，从而允许更高的转化率和产物产率。

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