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公开(公告)号：US20100041936A1
公开(公告)日：2010-02-18
申请号：US12191745
申请日：2008-08-14
摘要： Processes for separating a solid from a solids-liquids slurry under conditions that prevent ingress of molecular oxygen are advantageous where the presence of molecular oxygen would otherwise reduce efficiencies, contribute to limited product yields, and potentially compromise safe operation of the process or downstream unit operations. Among the various embodiments disclosed herein, is a process utilizing filter columns as solid-liquid separators in combination with crystallization and reslurry unit operations to recover a product component from an initial feed mixture of miscible components. Embodiments of the disclosed processes may include the separation and purification of a product component using a crystallizer in series with a filter column followed by a chemical reactor, using a reslurry drum in series with a filter column, and using a combination of crystallizers and/or reslurry drums in series with at least one filter column. The use of filter columns in such processes is particularly attractive because these columns, when operated under the conditions disclosed herein, limit the undesirable ingress of molecular oxygen into the various process streams, and further improve process efficiencies related to both product component recovery and operating costs.
摘要翻译： 在防止分子氧进入的条件下将固体与固体液体浆料分离的方法是有利的，其中分子氧的存在否则会降低效率，有助于有限的产物产率，并潜在地危及该方法或下游单元操作的安全操作 。 在本文公开的各种实施方案中，是使用过滤柱作为固液分离器与结晶和再浆化装置操作相结合以从可混溶组分的初始进料混合物中回收产物组分的方法。 所公开的方法的实施方案可以包括使用结晶器与过滤器柱随后是化学反应器串联的结晶器分离和纯化产物组分，使用与过滤柱串联的重整浆鼓，并且使用结晶器和/或 与至少一个过滤柱串联重新重新排列。 在这种方法中使用过滤塔是特别有吸引力的，因为这些柱在本文公开的条件下操作时限制了分子氧不期望地进入各种工艺流中，并且进一步提高了与产品组分回收率和操作成本有关的工艺效率 。
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公开(公告)号：US08530716B2
公开(公告)日：2013-09-10
申请号：US12191745
申请日：2008-08-14
IPC分类号： C07C7/14
摘要： Processes for separating a solid from a solids-liquids slurry under conditions that prevent ingress of molecular oxygen are advantageous where the presence of molecular oxygen would otherwise reduce efficiencies, contribute to limited product yields, and potentially compromise safe operation of the process or downstream unit operations. Among the various embodiments disclosed herein, is a process utilizing filter columns as solid-liquid separators in combination with crystallization and reslurry unit operations to recover a product component from an initial feed mixture of miscible components. Embodiments of the disclosed processes may include the separation and purification of a product component using a crystallizer in series with a filter column followed by a chemical reactor, using a reslurry drum in series with a filter column, and using a combination of crystallizers and/or reslurry drums in series with at least one filter column. The use of filter columns in such processes is particularly attractive because these columns, when operated under the conditions disclosed herein, limit the undesirable ingress of molecular oxygen into the various process streams, and further improve process efficiencies related to both product component recovery and operating costs.
摘要翻译： 在防止分子氧进入的条件下将固体与固体液体浆料分离的方法是有利的，其中分子氧的存在否则会降低效率，有助于有限的产物产率，并潜在地危及该方法或下游单元操作的安全操作 。 在本文公开的各种实施方案中，是使用过滤柱作为固液分离器与结晶和再浆化装置操作相结合以从可混溶组分的初始进料混合物中回收产物组分的方法。 所公开的方法的实施方案可以包括使用结晶器与过滤器柱随后是化学反应器串联的结晶器分离和纯化产物组分，使用与过滤柱串联的重整浆鼓，并且使用结晶器和/或 与至少一个过滤柱串联重新重新排列。 在这种方法中使用过滤塔是特别有吸引力的，因为这些柱在本文公开的条件下操作时限制了分子氧不期望地进入各种工艺流中，并且进一步提高了与产品组分回收率和操作成本有关的工艺效率 。
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公开(公告)号：US06600083B2
公开(公告)日：2003-07-29
申请号：US09901735
申请日：2001-07-10
IPC分类号： C07C714
CPC分类号： C07C15/08 , C07C7/005 , C07C7/13 , C07C7/14 , C07C15/067
摘要： A pressure swing adsorption process to separate para-xylene and ethylbenzene from C8 aromatics which uses a para-selective, non-acidic, medium pore molecular sieve of the MFI structure type and is operated isothermally in the vapor phase at elevated temperatures and pressures is integrated with crystallization to produce para-xylene product. A fixed bed of adsorbent is saturated with pX and EB, which are preferentially adsorbed, the feed is stopped, and lowering the partial pressure desorbs the pX and EB. The process effluent, which is rich in pX and EB, is crystallized to obtain para-xylene product.
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公开(公告)号：US08211319B2
公开(公告)日：2012-07-03
申请号：US10663918
申请日：2003-09-16
CPC分类号： B01D9/00 , B01D17/048 , B01D29/114 , B01D29/52 , B01D2201/202 , C07C7/00
摘要： A process for separating solids from liquids in a filtration zone defined by a higher concentration zone and a lower concentration zone separated by a filter. The process includes the steps of directing a slurry feed comprising a liquid and solids into the higher concentration zone, directing a displacement fluid to the higher concentration zone and passing at least a portion of the liquid through a filter to the filtrate zone, producing a filtrate.
摘要翻译： 在由过滤器分离的较高浓度区域和较低浓度区限定的过滤区域中分离固体与液体的方法。 该方法包括以下步骤：将包含液体和固体的浆料进料引导到较高浓度区域，将置换流体引导到较高浓度区域并使至少一部分液体通过过滤器至滤液区域，产生滤液 。
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公开(公告)号：US07812206B2
公开(公告)日：2010-10-12
申请号：US11277073
申请日：2006-03-21
CPC分类号： B01D9/00 , B01D29/114 , B01D29/52
摘要： A filter column apparatus comprising a filtration zone and a reslurry zone. These zones are separated by a barrier wall or are in substantial cooperation with each other. Also disclosed is a process for separating at least a portion of at least one substantially solid component from a solid-liquid stream comprising the substantially solid component and at least one substantially liquid component. Also disclosed is a process for forming a substantially solids containing packed bed. Also disclosed is a process for purifying paraxylene in a filtration zone.
摘要翻译： 一种过滤柱装置，包括过滤区和再浆化区。 这些区域被隔离墙隔开，或彼此基本上配合。 还公开了一种从包含基本上固体组分和至少一种基本上液体的组分的固体 - 液体流中分离出至少一部分基本上固体组分的方法。 还公开了一种用于形成基本上含固体的填充床的方法。 还公开了在过滤区域中纯化对二甲苯的方法。
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公开(公告)号：US5863420A
公开(公告)日：1999-01-26
申请号：US730093
申请日：1996-10-15
申请人： Vincent J. Kwasniewski , Narasimhan Calamur , Mark P. Kaminsky , John A. Mahoney , Charles G. Scouten , Richard A. Wilsak
发明人： Vincent J. Kwasniewski , Narasimhan Calamur , Mark P. Kaminsky , John A. Mahoney , Charles G. Scouten , Richard A. Wilsak
摘要： A process disclosed for the separation, purification and recovery of an unsaturated hydrocarbon from its mixture with at least one other material using a facilitated transport liquid membrane system.
摘要翻译： 一种公开的用于使用便利的输送液膜系统从其混合物与至少一种其它材料分离，纯化和回收不饱和烃的方法。
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公开(公告)号：US06565653B2
公开(公告)日：2003-05-20
申请号：US10025153
申请日：2001-12-18
申请人： Richard A. Wilsak
发明人： Richard A. Wilsak
IPC分类号： C30B700
CPC分类号： C07C15/08 , C07C7/13 , C07C7/14 , C30B7/00 , Y02P20/124 , C07C15/067
摘要： The invention is a novel energy efficient process to produce high purity paraxylene from a feed comprising at least 55 to 60 wt % paraxylene, wherein a first portion of high purity paraxylene product is obtained in a first crystallization step at about 10° F. to about 55° F. without the need for further reslurry and recrystallization, and wherein another portion of the high purity paraxylene product is obtained following a reslurry step which warms crystalline paraxylene obtained from subsequent lower temperature crystallizations to yield a slurry at a temperature of about 10° F. to about 55° F. without the need for further refrigeration.
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8.发明授权
公开(公告)号：US6124517A
公开(公告)日：2000-09-26
申请号：US082707
申请日：1998-05-21
IPC分类号： B01D53/02 , B01J20/02 , B01J20/08 , B01J20/32 , B01J20/34 , C07C7/12 , C07C7/152 , C07C11/02 , C10G25/00 , C10G25/03 , C10G70/04 , C07C7/00
CPC分类号： C10G25/003 , B01J20/02 , B01J20/08 , B01J20/103 , B01J20/12 , B01J20/18 , B01J20/20 , B01J20/28057 , B01J20/3085 , B01J20/3204 , B01J20/3236 , B01J20/3433 , B01J20/3458 , C07C7/12 , C07C7/152 , C10G70/046
摘要： Processes using heterogeneous adsorbents are disclosed for purification of relatively impure unsaturated hydrocarbons such as olefins, which are typically produced by thermal cracking of suitable hydrocarbon feedstocks, by passing a feed stream, containing acetylenic impurities, and, optionally, saturated hydrocarbon gases, through a particulate bed predominantly comprising a support material having high a surface area on which is dispersed at least one metallic element. Adsorption is carried out in an essentially dihydrogen-free atmosphere within the bed, effecting selective and reversible adsorption and/or complexing of the contained acetylenic contaminants with the adsorbent, thereby obtaining purified effluent which contains less than a predetermined level of the acetylenic impurities. Selective and reversible adsorption and/or complexing of the contained acetylenic impurities with the adsorbent is continued until levels of acetylenic impurities in the effluent stream increase to a predetermined level. Thereafter, the resulting bed of adsorbent is regenerated in the presence of a reducing gas containing dihydrogen to effect release of the contained acetylenic impurities from the adsorbent.
摘要翻译： 公开了使用非均相吸附剂的方法，用于纯化相对不纯的不饱和烃如烯烃，其通常通过使合适的烃原料热裂解产生，通过将含有炔属杂质和任选的饱和烃气体的进料流通过颗粒 床主要包括具有高表面积的支撑材料，其上分散有至少一个金属元素。 吸附在床内基本上不含二氢的气氛中进行，对所含的炔属污染物与吸附剂进行选择性和可逆吸附和/或络合，由此获得含有小于预定水平的炔属杂质的纯化流出物。 所含有的炔属杂质与吸附剂的选择性和可逆吸附和/或络合继续进行，直到排出物流中的炔属杂质水平增加到预定水平。 此后，在含有二氢的还原性气体的存在下，将所得到的吸附床再生，以使吸附剂中含有的炔属杂质脱离。
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9.发明授权
公开(公告)号：US6080905A
公开(公告)日：2000-06-27
申请号：US22651
申请日：1998-02-12
IPC分类号： B01D53/02 , B01J20/02 , B01J20/08 , B01J20/32 , B01J20/34 , C07C7/12 , C07C7/152 , C07C11/02 , C10G25/00 , C10G25/03 , C10G70/04 , C07C7/00
CPC分类号： C10G70/046 , B01J20/02 , B01J20/08 , B01J20/103 , B01J20/12 , B01J20/18 , B01J20/20 , B01J20/28016 , B01J20/28061 , B01J20/3078 , B01J20/3204 , B01J20/3236 , B01J20/3433 , B01J20/3458 , C07C7/12 , C07C7/152 , C10G25/003 , B01J2220/56
摘要： Processes using heterogeneous adsorbents are disclosed for purification of olefins such as are typically produced by thermal cracking of suitable hydrocarbon feedstocks, by passing a stream of olefin having from 2 to about 8 carbon atoms, containing acetylenic impurities having the same or similar carbon content, and optionally saturated hydrocarbon gases, through a particulate bed of predominantly a support material having high surface area on which is dispersed at least one metallic element. Adsorption is carried out in an essentially dihydrogen-free atmosphere within the bed, selective and reversible adsorption and/or complexing of the contained acetylenic contaminants with the adsorbent, and thereby obtain purified effluent which contains less than a predetermined level of the acetylenic impurities. Selective and reversible adsorption and/or complexing of the contained acetylenic impurities with the adsorbent is continued until levels of acetylenic impurities in the effluent stream increase to a predetermined level. Thereafter the resulting bed of adsorbent is regenerated in the presence of a reducing gas containing dihydrogen to effect release of the contained acetylenic impurities from the adsorbent.
摘要翻译： 公开了使用非均相吸附剂的方法，用于纯化烯烃，例如通常通过使合适的烃原料热裂解，通过含有2至约8个碳原子的烯烃流，其含有具有相同或相似碳含量的炔属杂质，以及 任选的饱和烃气体，通过主要是具有高表面积的支撑材料的颗粒床，其上分散有至少一种金属元素。 吸附在床内基本上不含二氢的气氛中进行，选择性和可逆吸附和/或将所含的炔属污染物与吸附剂络合，从而获得含有小于预定水平的炔属杂质的纯化流出物。 所含有的炔属杂质与吸附剂的选择性和可逆吸附和/或络合继续进行，直到排出物流中的炔属杂质水平增加到预定水平。 此后，所得到的吸附剂床在含有二氢的还原气体的存在下再生，以使吸附剂中含有的炔属杂质释放。
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