公开(公告)号：US5503658A

公开(公告)日：1996-04-02

申请号：US324041

申请日：1994-10-17

申请人： Andrew S. Zarchy ,  Kirit M. Patel

发明人： Andrew S. Zarchy ,  Kirit M. Patel

IPC分类号： B01D53/047

CPC分类号： B01D53/0476 ,  B01D2253/10 ,  B01D2253/102 ,  B01D2253/104 ,  B01D2253/106 ,  B01D2257/102 ,  B01D2257/11 ,  B01D2257/502 ,  B01D2257/504 ,  B01D2257/7022 ,  B01D2257/708 ,  B01D2259/40056 ,  B01D2259/40079 ,  B01D2259/40081 ,  B01D2259/402 ,  B01D2259/403 ,  B01D2259/4146 ,  Y02C10/08

摘要： A process claimed for the removal of VOCs from fluid streams. The process comprises a vacuum swing adsorption zone containing at least 2 adsorption beds wherein the adsorbent beds are cocurrently purged with a diluent stream comprising an inert gas prior to a countercurrent evacuation step. In addition, the adsorbent beds may contain a first adsorption layer comprising an adsorbent selective for the adsorption of the inert gas, whereby the inert gas is retained within the VSA system to prevent the creation of an explosive mixture upon the recovery of the desorbed VOCs.

摘要翻译： 要求从流体流中除去VOC的方法。 该方法包括含有至少2个吸附床的真空挥发吸附区，其中在逆流抽空步骤之前，吸附剂床与包含惰性气体的稀释剂流同时吹扫。 此外，吸附剂床可以含有包含吸附惰性气体的吸附剂的第一吸附层，由此惰性气体保留在VSA系统内，以防止在解吸的VOC的回收时产生爆炸性混合物。

公开(公告)号：US5164076A

公开(公告)日：1992-11-17

申请号：US644796

申请日：1991-01-22

申请人： Andrew S. Zarchy ,  Richard Correia ,  Chien C. Chao

发明人： Andrew S. Zarchy ,  Richard Correia ,  Chien C. Chao

IPC分类号： C10G25/05

CPC分类号： C10G25/05

摘要： Processes are disclosed for the separation of hydrogen sulfide from feedstreams containing hydrogen sulfide and hydrocarbons by adsorption using a clinoptilolite adsorbent containing cations having ionic radii of from about 1.10 to 1.40 Angstroms. The processes can provide substantially enhanced adsorption capacities as compared with other adsorbents such as Zeolite 4A. As a result, a throughput of existing sulfur adsorption plants can be increased, e.g., by about 100%. The processes can be operated at elevated adsorption temperatures, e.g., greater than about 200.degree. F., and thus are particularly suitable when integrated with other processing steps such as hydrocarbon conversion reactions that utilize catalysts which are sulfur-sensitive. In addition, the clinoptilolite adsorbents of the present invention have a high tolerance to environments that comprise halides, e.g., HCl.

摘要翻译： 公开了通过使用含有离子半径为约1.10至1.40埃的阳离子的斜发沸石吸附剂通过吸附从含有硫化氢和烃的进料流中分离硫化氢的方法。 与其它吸附剂如沸石4A相比，该方法可提供显着增强的吸附能力。 结果，可以增加现有硫吸附装置的生产量，例如增加约100％。 该方法可以在升高的吸附温度（例如大于约200°F）下操作，因此当与其他加工步骤（例如利用硫敏感的催化剂的烃转化反应）结合时特别合适。 此外，本发明的斜发沸石吸附剂对包含卤化物例如HCl的环境具有高耐受性。

公开(公告)号：US4929799A

公开(公告)日：1990-05-29

申请号：US311399

申请日：1989-02-16

申请人： Thomas C. Holcombe ,  Thomas C. Sager ,  Warren K. Volles ,  Andrew S. Zarchy

发明人： Thomas C. Holcombe ,  Thomas C. Sager ,  Warren K. Volles ,  Andrew S. Zarchy

IPC分类号： C10G65/04

CPC分类号： C10G65/043

摘要： Processing and apparatus are provided for upgrading the octane of a mixed hydrocarbon gasoline feedstock by an integrated adsorption-isomerization process which catalytically isomerizes normal paraffinic hydrocarbons and concentrates non-normals in a product stream, in both the reactor-lead and adsorber-lead configuration.The process includes passing an adsorber feed stream comprising hydrogen as well as hydrocarbons to an adsorbent bed to adsorb normal hydrocarbons. The hydrogen is preferably obtained from a hot hydrogen-containing process stream which is not cooled or separated into component parts prior to forming the adsorber feed. In some embodiments, the hot-hydrogen containing stream comes from reactor effluent and in others from desorption effluent.According to the invention, the only hydrogen which will require cooling and separation from a hydrocarbon component is that which is recycled for desorption. The invention provides improved energy efficiency and can reduce equipment size and complexity.

摘要翻译： 提供了加工和设备，用于通过在反应器 - 铅和吸附器 - 引线构型中的催化异构化正链烷烃并在产物流中浓缩非法线的综合吸附异构化方法来提高混合烃汽油原料的辛烷。 该方法包括将包含氢气和烃的吸附剂进料流传递到吸附床以吸附普通烃。 氢优选由在形成吸附剂进料之前未冷却或分离成组分部分的含热氢工艺物流获得。 在一些实施方案中，含热氢气流来自反应器流出物，而在另一些实施方案中来自解吸流出物。 根据本发明，需要从烃组分中冷却和分离的唯一氢是被再循环用于解吸的氢。 本发明提供了改进的能量效率并且可以减少设备尺寸和复杂性。

公开(公告)号：US4831208A

公开(公告)日：1989-05-16

申请号：US121904

申请日：1987-11-17

申请人： Andrew S. Zarchy

发明人： Andrew S. Zarchy

IPC分类号： B01D53/04 ,  B01D20060101 ,  B01D15/00 ,  B01D15/04 ,  B01D53/02 ,  B01J19/00 ,  B01J20/18 ,  C10G25/00 ,  C10G25/05 ,  C10G25/12 ,  C10G53/02 ,  C10G61/06 ,  C10G67/02 ,  C10G67/06

CPC分类号： C10G67/06 ,  C10G25/00 ,  C10G25/12 ,  Y10S502/517

摘要： The present invention relates to a chemical process involving a processing step which is sensitive to the presence of at least one component contained within the stream to be processed and to an economical and efficient method of temporarily removing such deleterious component from the stream so as to have the deleterious component by-pass the step which is sensitive to this component using an adsorbent for such removal wherein the adsorbent is regenerated by the product effluent stream leaving the sensitive processing step.

摘要翻译： 一种用于执行涉及流体流的至少一个组分的操作以提供含有至少一种组分或其化学衍生物的产物的方法，所述流体流包含至少一种在操作的至少一个步骤中是有害的其它组分 ，其包括：（a）在吸附条件下与至少一种组分相比，使流体物流与吸附剂有选择性地吸附至少一种其它组分，以提供具有降低的至少一种浓度的吸附级流出物 其他成分; （b）在该操作的至少一个步骤中使用吸附阶段流出物以提供产物流出物流; 和（c）在脱附条件下将至少一部分产物流出物流与其上吸附有至少一种其它组分的吸附剂接触以再生吸附剂，并提供含有增加浓度的至少一种其它组分的解吸阶段流出物。 F

公开(公告)号：US06339179B1

公开(公告)日：2002-01-15

申请号：US09625707

申请日：2000-07-25

申请人： Russell C. Schulz ,  Gregory J. Gajda ,  Guy B. Woodle ,  Andrew S. Zarchy

发明人： Russell C. Schulz ,  Gregory J. Gajda ,  Guy B. Woodle ,  Andrew S. Zarchy

IPC分类号： C07C258

CPC分类号： C07C15/073 ,  C07C15/085 ,  C07C2529/08 ,  C07C2529/40 ,  C07C2529/70 ,  Y02P20/582

摘要： A process for producing alkyl aromatics using a transalkylation reaction zone and an alkylation reaction zone is disclosed. One portion of the transalkylation reaction zone effluent passes to an alkylation reaction zone where an aromatic substrate is alkylated to the desired alkyl aromatic. At least a portion of the alkylation reaction zone effluent and another portion of the transalkylation reaction zone effluent pass to a product recovery zone. This process decreases the capital and operating costs of recycling aromatic substrate to the transalkylation and/or alkylation reaction zone while maintaining operational flexibility. This process is well suited for solid transalkylation and alkylation catalysts. Ethylbenzene and cumene may be produced by this process.

摘要翻译： 公开了使用烷基转移反应区和烷基化反应区制备烷基芳族化合物的方法。 烷基转移反应区流出物的一部分通过烷基化反应区，其中芳族底物被烷基化成所需的烷基芳族化合物。 至少一部分烷基化反应区流出物和另一部分烷基转移反应区流出物通过产物回收区。 该方法降低了将芳族底物循环至烷基转移反应区和/或烷基化反应区的资本和操作成本，同时保持了操作灵活性。 该方法非常适用于固体烷基转移和烷基化催化剂。 可以通过该方法生产乙苯和枯烯。

公开(公告)号：US5453113A

公开(公告)日：1995-09-26

申请号：US225861

申请日：1994-04-11

申请人： Andrew S. Zarchy ,  Richard T. Maurer ,  Chen C. Chao

发明人： Andrew S. Zarchy ,  Richard T. Maurer ,  Chen C. Chao

IPC分类号： B01D53/047

CPC分类号： B01D53/047 ,  B01D2253/106 ,  B01D2253/108 ,  B01D2253/308 ,  B01D2259/40064 ,  B01D2259/40079 ,  B01D2259/40081 ,  B01D2259/402

摘要： The present invention provides a process for the recovery of methyl chloride from a mixture thereof with isobutane. The process employs pressure swing adsorption with a size selective adsorbent having a pore opening of between about 3.7.times.3.7 Angstroms and about 4.9.times.5.7 Angstroms, such as zeolite A, clinoptilolite and mixtures thereof to selectively adsorb methyl chloride from vent streams comprising methyl chloride and isobutane and recovering a tail gas stream enriched in methyl chloride. The process may be used in applications such as treating the vent gas streams from the direct synthesis of methyl chlorosilanes. The process provides an economical route to recovering a valuable raw material in the process of making silicones and reduces the volume and methyl chloride content of the vent stream which is typically incinerated to avoid the release of halogenated hydrocarbons to the atmosphere.

摘要翻译： 本发明提供从异丁烷与其混合物中回收甲基氯的方法。 该方法采用具有约3.7×3.7埃至约4.9×5.7埃的孔径的尺寸选择性吸附剂的变压吸附，例如沸石A，斜发沸石及其混合物，以选择性地从包含甲基 氯化物和异丁烷，并回收富含甲基氯的尾气流。 该方法可用于例如从直接合成甲基氯硅烷处理排出气流的应用中。 该方法提供了在制备硅氧烷的过程中回收有价值原料的经济途径，并且减少通常被焚烧的排放流的体积和甲基氯含量，以避免将卤代烃释放到大气中。

公开(公告)号：US5336834A

公开(公告)日：1994-08-09

申请号：US63801

申请日：1993-05-20

申请人： Andrew S. Zarchy ,  Chien C. Chao

发明人： Andrew S. Zarchy ,  Chien C. Chao

IPC分类号： C10G25/00 ,  C10G67/06 ,  C07C5/22

CPC分类号： C10G25/00 ,  C10G67/06

摘要： An adsorption arrangement in combination with a catalytic hydrocarbon conversion process suspends non-hydrocarbon materials that act to enhance the operation of the conversion zone by using an adsorption zone arrangement to keep the compounds in recirculation about the reaction zone. The process of this invention is particularly useful for the isomerization of hydrocarbons wherein the adsorption zone arrangement operates to maintain chloride compounds in the reaction zone and to prevent contamination of product streams with the chloride compounds. This invention can be used in combination with traditional adsorptive methods of removing contaminant from feedstreams that enter reaction zones. The invention is also useful for sulfided catalysts where it is desirable to maintain sulfur within the reaction zone and keep sulfur contamination from entering product streams.

摘要翻译： 与催化烃转化过程组合的吸附装置悬浮非烃材料，其通过使用吸附区排列来增强转化区的操作，以保持化合物在反应区周围再循环。 本发明的方法对于烃的异构化特别有用，其中吸附区布置用于维持反应区中的氯化物化合物并防止氯化物化合物产物流的污染。 本发明可以与从进料反应区的进料流中除去污染物的传统吸附方法组合使用。 本发明也可用于硫化催化剂，其中希望在反应区内保持硫并保持硫污染物进入产物流。

公开(公告)号：US5045175A

公开(公告)日：1991-09-03

申请号：US600790

申请日：1990-10-22

申请人： Robert S. Haizmann ,  Andrew S. Zarchy ,  Martin F. Symoniak

发明人： Robert S. Haizmann ,  Andrew S. Zarchy ,  Martin F. Symoniak

IPC分类号： C10G67/06

CPC分类号： C10G67/06

摘要： A hydrotreating process uses a separation section that reduces the loss of C.sub.4 and higher hydrocarbons through the use of a low hydrogen to hydrocarbon ratio in the reactor and the adsorptive removal of a majority of hydrogen sulfide from a liquid phase hydrotreater effluent. Sulfurous hydrocarbon feed is admixed with hydrogen to maintain a hydrogen to hydrocarbon ratio of less than 50 SCFB. The hydrogen and hydrocarbons are passed through a hydrotreater reactor to convert sulfur compounds to H.sub.2 S. The hydrotreater effluent is cooled and after flashing of any excess hydrogen or light ends the cooled effluent is contacted with an adsorbent material for the removal of H.sub.2 S. A hydrotreated hydrocarbon product is withdrawn from the adsorption section. The low hydrogen to hydrocarbon ratio permits the process to be used without the recycle of hydrogen thereby eliminating the need for separators and compressors that were formly used to recycle hydrogen to the hydrotreater. The elimination of the recycle and the low hydrogen to hydrocarbon ratio simplifies the flowscheme which can use a simple separator to flash light ends, hydrogen and some H.sub.2 S from the hydrotreater effluent. This process thus eliminates the need for a stripping section that was formerly needed to remove light ends and hydrogen sulfide from the hydrotreated product. The adsorptive removal of the H.sub.2 S and the limited venting of hydrogen allows essentially all of the hydrotreated product to be preserved. In most flowschemes H.sub.2 S removal can be carried out in the adsorbers that are usually present for drying of the hydrotreated feed.

摘要翻译： 加氢处理方法使用分离段，其通过在反应器中使用低的氢烃比例降低C4和高级烃的损失，并从液相加氢处理器流出物中吸附除去大部分硫化氢。 亚硫酸烃进料与氢气混合以保持氢与烃的比例小于50SCFB。 氢气和烃通过加氢处理反应器将硫化合物转化为H 2 S。 加氢处理器流出物被冷却并且在闪蒸过量的氢气或轻馏分之后，冷却的流出物与用于除去H 2 S的吸附材料接触。 加氢处理的烃产物从吸附段中排出。 低氢烃比可以使得该方法不用氢再循环使用，从而消除了对正式用于将氢循环到加氢处理塔中的分离器和压缩机的需要。 循环利用和低氢烃比的消除简化了可以使用简单分离器从加氢处理器流出物中闪蒸轻馏分，氢气和一些H 2 S的流程。 因此，该方法不需要先前需要从加氢处理的产物中除去轻馏分和硫化氢的汽提部分。 H2S的吸附去除和氢的有限排放允许基本上所有的加氢处理产物被保存。 在大多数流程中，可以在通常用于干燥加氢处理的进料的吸附器中进行H 2 S的去除。

公开(公告)号：US4831207A

公开(公告)日：1989-05-16

申请号：US187844

申请日：1988-04-29

申请人： Luke F. O'Keefe ,  Warren Volles ,  Andrew S. Zarchy

发明人： Luke F. O'Keefe ,  Warren Volles ,  Andrew S. Zarchy

IPC分类号： C10G25/00 ,  C10G25/12 ,  C10G67/06

CPC分类号： C10G25/12 ,  C10G25/00 ,  C10G67/06 ,  Y10S502/517

摘要： The present invention relates to a chemical process involving a processing step which is sensitive to the presence of at least one component contained within the stream to be processed and to an economical and efficient method of temporarily removing such deleterious component from the stream so as to have the deleterious component by-pass the step which is sensitive to this component using an adsorbent for such removal wherein the adsorbent is regenerated by the product effluent stream leaving the sensitive processing step.

摘要翻译： 本发明涉及一种化学方法，该方法涉及对待处理流中所含的至少一种组分的存在敏感的加工步骤以及从流中临时除去这些有害成分的经济有效的方法，以便具有 有害组分通过对该组分敏感的步骤使用用于这种去除的吸附剂，其中吸附剂由离开敏感加工步骤的产物流出物流再生。

公开(公告)号：US4778944A

公开(公告)日：1988-10-18

申请号：US917654

申请日：1986-10-10

申请人： Andrew S. Zarchy

发明人： Andrew S. Zarchy

IPC分类号： B01J29/22 ,  C07C5/27 ,  C10G35/095 ,  C07C5/13

CPC分类号： C10G35/095 ,  B01J29/22 ,  C07C5/2791

摘要： Catalytic isomerization of paraffinic feedstocks containing at least about 2 ppm by weight sulfur is effected using an isomerization catalyst comprising a hydrogenation/dehydrogenation catalyst supported on molecular sieve without undue loss of catalytic activity or selectivity by maintaining the water content of the feedstock below about 5 ppm by weight water.

摘要翻译： 含有至少约2ppm重量硫的石蜡原料的催化异构化是使用包含负载在分子筛上的氢化/脱氢催化剂的异构化催化剂进行的，而不会不利地导致催化活性或选择性损失，原料维持原料的水分低于约5ppm 重量的水。