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公开(公告)号：US6106702A
公开(公告)日：2000-08-22
申请号：US222149
申请日：1998-12-29
CPC分类号： B01D53/08 , B01D53/04 , C07C7/13 , C10G25/03 , C10G25/12 , C10G53/08 , B01D2253/108 , B01D2256/24 , B01D2257/702 , B01D2257/7027
摘要： A molecular sieve guard bed used in an adsorptive process for separating olefinic hydrocarbons from paraffinic hydrocarbons is regenerated in a method which recovers valuable hydrocarbons from the guard bed void volumes. The method comprises first contacting the sieve with a purge stream, with the initial effluent of the guard bed passed into a raffinate column to recover the olefinic hydrocarbons in the void volume of the bed. The flow of the effluent of the guard bed is then switched to a different fractionation column.
摘要翻译： 用于从链烷烃分离烯烃的吸附方法中的分子筛保护床以从保护床空隙体积中回收有价烃的方法再生。 该方法包括首先使筛子与吹扫流接触，将保护床的初始流出物送入萃余塔中以回收床的空隙体积中的烯烃。 然后将保护床的流出物的流动切换到不同的分馏塔。
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公开(公告)号：US5922923A
公开(公告)日：1999-07-13
申请号：US723208
申请日：1996-09-27
IPC分类号： C10G35/095 , C10G61/06 , C07C15/00 , C07C2/52 , C10G35/04
CPC分类号： C10G61/06 , C10G35/095
摘要： The feedstock to an aromatization process is processed by a selective adsorption step to remove hydrocarbon species, particularly indan, which have a severe adverse effect on aromatization catalyst stability. The feedstock preferably is a paraffinic raffinate from aromatics extraction. The intermediate from the adsorption step is particularly suitable for the selective conversion of paraffins to aromatics using a high-activity dehydrocyclization catalyst with high aromatics yields and long catalyst life.
摘要翻译： 通过选择性吸附步骤处理芳构化方法的原料以除去对芳构化催化剂稳定性具有严重不利影响的烃类，特别是茚满。 原料优选是来自芳烃萃取的链烷烃提余液。 来自吸附步骤的中间体特别适用于使用高芳族化合物产率和较长催化剂寿命的高活性脱氢环化催化剂将石蜡选择性转化为芳族化合物。
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33.发明授权
公开(公告)号：US5900523A
公开(公告)日：1999-05-04
申请号：US907726
申请日：1997-08-08
申请人： Santi Kulprathipanja
发明人： Santi Kulprathipanja
CPC分类号： C07C7/13
摘要： Metaxylene is recovered from admixture with other C.sub.8 aromatic hydrocarbons including orthoxylene by liquid phase adsorptive separation using a sodium exchanged Y zeolite as the adsorbent. Performance is improved by maintaining the adsorbent in a narrow range of temperature and hydration. These conditions allow the metaxylene to be recovered in a single raffinate process without costly prefractionation for orthoxylene removal. A novel desorbent, indane, is also disclosed.
摘要翻译： 通过使用钠交换的Y沸石作为吸附剂通过液相吸附分离与包括邻二甲苯在内的其它C8芳族烃混合来回收亚甲硅烷。 通过将吸附剂保持在窄的温度和水合范围内来提高性能。 这些条件允许在单次提余工艺中回收间二甲苯，而不需要昂贵的预分馏以进行邻二甲苯去除。 还公开了一种新颖的解吸剂，二氢化茚。
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公开(公告)号：US5849981A
公开(公告)日：1998-12-15
申请号：US882427
申请日：1997-06-25
申请人： Santi Kulprathipanja
发明人： Santi Kulprathipanja
IPC分类号： C07C7/13
CPC分类号： C07C7/13
摘要： The cost of separating para-xylene from other xylene isomers and C.sub.9 aromatics by adsorption on zeolitic molecular sieves is reduced by the use of 1,4 diisopropylbenzene as a relatively high boiling desorbent. The desorbent has surprisingly high strength and selectivity characteristics with the preferred desorbent. The preferred adsorbent is an X zeolite containing barium or both barium and potassium ions at exchangeable cationic sites. The para-xylene components are selectively adsorbed onto the adsorbent. The non-adsorbed feed is then removed from the adsorbent and the para-xylene recovered by desorption.
摘要翻译： 通过使用1,4-二异丙苯作为相对高沸点的解吸剂，降低了通过吸附在沸石分子筛上分离对二甲苯与其它二甲苯异构体和C9芳族化合物的成本。 解吸剂具有令人惊讶的高强度和选择性特征与优选的解吸附剂。 优选的吸附剂是在可交换的阳离子位点含有钡或钡和钾离子的X沸石。 对二甲苯组分选择性地吸附到吸附剂上。 然后从吸附剂中除去未吸附的进料，通过解吸回收对二甲苯。
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公开(公告)号：US5807475A
公开(公告)日：1998-09-15
申请号：US751829
申请日：1996-11-18
CPC分类号： C10G25/05 , C10G25/003
摘要： A process for removing sulfur containing compounds from various hydrocarbon streams is disclosed and claimed. The process involves contacting the feedstream with an adsorbent such as nickel exchanged zeolite X or Y, or a smectite layered clay having a surface area of at least 150 m.sup.2 /g, thereby adsorbing the sulfur compounds onto the adsorbent.
摘要翻译： 公开并要求保护从各种烃流中除去含硫化合物的方法。 该方法包括使进料流与诸如镍交换的沸石X或Y的吸附剂或表面积至少为150m 2 / g的蒙皂石层状粘土接触，从而将硫化合物吸附到吸附剂上。
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公开(公告)号：US5571387A
公开(公告)日：1996-11-05
申请号：US304919
申请日：1994-09-13
CPC分类号： B01D3/14 , C07C29/76 , C07C29/80 , C07C41/36 , C07C41/42 , C07C2101/14 , Y10S203/06
摘要： The present invention is a process for separating at least a first component from a second component of at least a first stream within a single vessel having at least one distillation zone and an adsorption zone. The invention may be applied to separates an alcohol from a mixture of the alcohol and water, such as separating isopropyl alcohol from a mixture of isopropyl alcohol and water. The invention may be applied to more complex systems such as separating isopropyl alcohol and separating diisopropyl ether from the effluents of each reactor of a two-stage diisopropyl ether production process. The benefit of the invention is a high purity separation process at reduced capital equipment costs.
摘要翻译： 本发明是一种在具有至少一个蒸馏区和吸附区的单个容器内从至少第一流中的第二组分分离至少第一组分的方法。 本发明可以应用于将醇与醇和水的混合物分离，例如从异丙醇和水的混合物中分离异丙醇。 本发明可以应用于更复杂的系统，例如从两步二异丙醚生产过程的每个反应器的流出物中分离异丙醇和分离二异丙醚。 本发明的优点是降低资本设备成本的高纯度分离方法。
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37.发明授权
公开(公告)号：US5000794A
公开(公告)日：1991-03-19
申请号：US395009
申请日：1989-08-17
申请人： Santi Kulprathipanja
发明人： Santi Kulprathipanja
CPC分类号： C13B20/123 , C13K1/04
摘要： Glucose is separated from mixtures with mannose and other saccharides by adsorption on low aluminum Y-type zeolites, i.e., having up to about 50 atoms of aluminum per unit cell and desorbing the adsorbate with water. Glucose is removed from the adsorption process in the raffinate.
摘要翻译： 通过在低铝Y型沸石上吸附将葡萄糖与甘露糖和其他糖类的混合物分离，即每单元电池具有高达约50个原子的铝并用水解吸附被吸附物质。 从残液中的吸附过程中除去葡萄糖。
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公开(公告)号：US4740219A
公开(公告)日：1988-04-26
申请号：US858321
申请日：1986-05-01
CPC分类号： B01D69/141 , B01D53/228
摘要： A fluid feed mixture, either liquid or gaseous in nature, may be subjected to a gas enrichment separation process. The process is effected by contacting the mixture with the upstream face of a mixed matrix membrane which comprises an organic polymer having a solid particulate adsorbent incorporated therein, the permeability coefficient of the organic polymer being compatible with the permeability coefficient of the adsorbent. The permeate which emanates from the downstream face of the membrane comprises a fluid product mixture in which the proportion of the first fluid component of the feed mixture, which possesses a greater steady state permeability in relation to the second fluid component, is greater than the proportion present in the original fluid feed mixture.
摘要翻译： 本质上液体或气体的流体进料混合物可以进行气体富集分离过程。 该方法通过使混合物与混合基质膜的上游面接触来实现，该混合基质膜包含其中结合有固体颗粒吸附剂的有机聚合物，有机聚合物的渗透系数与吸附剂的渗透系数相适应。 从膜的下游面发出的渗透物包括流体产物混合物，其中相对于第二流体组分具有更大的稳态渗透性的进料混合物的第一流体组分的比例大于比例 存在于原始流体进料混合物中。
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公开(公告)号：US4570029A
公开(公告)日：1986-02-11
申请号：US707998
申请日：1985-03-04
摘要： A process for separating isoprene from isobutylene, isopentane, and pentene-1. The process uses an adsorbent comprising activated carbon or molecular sieve carbon to selectively adsorb isoprene from the other hydrocarbons. High purity isoprene is recovered by desorption using desorbent materials which include olefinic hydrocarbons. The process is particularly suited for a simulated moving bed apparatus.
摘要翻译： 从异丁烯，异戊烷和戊烯-1分离异戊二烯的方法。 该方法使用包含活性炭或分子筛碳的吸附剂从其它烃中选择性吸附异戊二烯。 通过使用包括烯烃的解吸剂材料的解吸来回收高纯度异戊二烯。 该方法特别适用于模拟移动床装置。
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公开(公告)号：US4568496A
公开(公告)日：1986-02-04
申请号：US695645
申请日：1985-01-28
CPC分类号： C11C1/08
摘要： A process for separating an unsaponifiable compound from a feed mixture including fatty acids. The process comprises: (a) forming an emulsion with the feed mixture, an organic solvent in which the feed mixture is soluble and an emulsifying liquid capable of forming an emulsion with the feedstock and organic solvent, the polarity index of the emulsifying liquid being at least 2.4 higher than the polarity index of the organic solvent; (b) effecting the formation of three phases from the emulsion, an organic solvent phase containing the major portion of the fatty acids, an emulsifying liquid phase and a semi-solid sludge phase containing the major portion of the unsaponifiable compound; and (c) separating the three phases.
摘要翻译： 从包含脂肪酸的进料混合物中分离不皂化合物的方法。 该方法包括：（a）与进料混合物形成乳液，其中可混合进料混合物的有机溶剂和能够与原料和有机溶剂形成乳液的乳化液，乳化液体的极性指数为 比有机溶剂的极性指数低2.4; （b）从乳液形成三相，含有主要部分脂肪酸的有机溶剂相，乳化液相和含有主要部分的不皂化合物的半固体污泥相; 和（c）分离三相。
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