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1. 发明授权

US09434892B2 Two stage fluid catalytic cracking process and apparatus 有权
标题翻译：两级流化催化裂化工艺及装置
公开(公告)号：US09434892B2
公开(公告)日：2016-09-06
申请号：US13808835
申请日：2011-07-04
申请人： Ponoly Ramachandran Pradeep , Sadhullah Mukthiyar , Gadari Saidulu , Debasis Bhattacharyya , Vetterkunnel Kumaran Satheesh
发明人： Ponoly Ramachandran Pradeep , Sadhullah Mukthiyar , Gadari Saidulu , Debasis Bhattacharyya , Vetterkunnel Kumaran Satheesh
IPC分类号： C10G51/00 , C10G51/02 , C10G11/18
CPC分类号： C10G51/026 , C10G11/18 , C10G2300/207 , C10G2300/301 , C10G2300/4093 , C10G2300/807 , C10G2400/02 , C10G2400/20
摘要： A two stage Fluid Catalytic Cracking process and an apparatus for simultaneous production of light olefins such as ethylene and propylene and middle distillate range hydrocarbons, wherein a first flow reactor, preferably a downer and a second flow reactor, preferably a riser are operating at varying reaction severities using different catalyst systems with the regenerated catalyst entering the reactors inlet through independent regenerators. Mild cracking of the fresh feedstock is carried out in the first flow reactor of short residence time and the effluent of first flow reactor is separated in an intermediate separator/fractionator followed by re-cracking of the C4 hydrocarbons and naphtha range hydrocarbons, preferably C5-150° C. from the second product separation section and unconverted hydrocarbons (370° C.+) of first flow reactor, in the second flow reactor at higher severity employing different catalyst system.
摘要翻译：两级流体催化裂化方法和用于同时生产轻质烯烃如乙烯和丙烯以及中间馏分烃类的装置，其中第一流动反应器，优选下流式和第二流动反应器，优选提升管以变化的反应使用不同催化剂体系的严重性，再生催化剂通过独立的再生器进入反应器入口。新鲜原料的轻度裂化在短停留时间的第一流化反应器中进行，第一流动反应器的流出物在中间分离器/分馏器中分离，随后重新开裂C4烃和石脑油烃，优选C5- 在第二流动反应器中，来自第二产物分离段的150℃和未转化的烃（370℃+），在第二流动反应器中采用不同的催化剂体系。

2. 发明申请

US20130168289A1 MULTI RISER RESID CATALYTIC CRACKING PROCESS AND APPARATUS 有权
标题翻译：多层催化裂化工艺及设备
公开(公告)号：US20130168289A1
公开(公告)日：2013-07-04
申请号：US13808852
申请日：2011-07-04
申请人： G. Saidulu , M.K. Bhuyan , T.H.V.D. Prasad , Debasis Bhattacharyya , S. Rajagopal
发明人： G. Saidulu , M.K. Bhuyan , T.H.V.D. Prasad , Debasis Bhattacharyya , S. Rajagopal
IPC分类号： C10G51/02
CPC分类号： C10G51/02 , B01J8/0055 , B01J8/1863 , B01J8/26 , B01J8/32 , B01J2208/0084 , C10G11/18 , C10G11/182 , C10G25/09 , C10G25/12 , C10G51/026 , C10G55/06 , C10G55/08 , C10G70/041 , C10G2300/205 , C10G2300/206 , C10G2300/305 , C10G2300/4081 , C10G2300/4093 , C10G2300/708 , C10G2300/807 , C10G2400/02 , C10G2400/20
摘要： This invention provides a fluidized catalytic cracking apparatus and process for converting a hydrocarbon feedstock containing higher concentrations of Conradson Carbon Residue (CCR), metal impurities, etc into lighter products by employing two riser reactors in which the feed impurities are removed using an adsorbent in a first riser reactor and cracking a portion of first riser reactor liquid product in a second riser reactor to lighter products using the active catalyst thus eliminating the catalyst deactivation due to metal, impurities and FCC catalyst activity dilution effect to achieve a better conversion and higher catalyst longevity.
摘要翻译：本发明提供了一种流化催化裂化装置和方法，该装置和方法通过采用两个提升管反应器将包含较高浓度的康拉德逊碳残余物（CCR），金属杂质等的烃原料转化成更轻的产物，其中使用吸附剂除去进料杂质第一提升管反应器，并使用活性催化剂将第二提升管反应器中的第一提升管反应器液体产物的一部分裂解成较轻的产物，从而消除由于金属，杂质和FCC催化剂活性稀释效应引起的催化剂失活，以实现更好的转化和更高的催化剂寿命。

3. 发明申请

US20130020234A1 METHOD AND APPARATUS FOR CATALYTIC CRACKING 有权
标题翻译：催化裂化的方法和装置
公开(公告)号：US20130020234A1
公开(公告)日：2013-01-24
申请号：US13638509
申请日：2011-03-30
申请人： Debasis Bhattacharyya , Gadari Saidulu , Arumugam Velayutham Karthikeyani , Pankaj Kasliwal , Bandaru Venkata Hari Prasad Gupta , Ram Mohan Thakur , Jagdev Kumar Dixit , Sudipta Roy , Ganga Shanker Mishra , Satyen Kumar Das , Santanam Rajagopal
发明人： Debasis Bhattacharyya , Gadari Saidulu , Arumugam Velayutham Karthikeyani , Pankaj Kasliwal , Bandaru Venkata Hari Prasad Gupta , Ram Mohan Thakur , Jagdev Kumar Dixit , Sudipta Roy , Ganga Shanker Mishra , Satyen Kumar Das , Santanam Rajagopal
IPC分类号： C10G55/06 , B01J8/00
CPC分类号： C10G11/18 , C10G25/00 , C10G25/12 , C10G55/06 , C10G2300/201 , C10G2300/4093 , C10G2400/02 , C10G2400/20 , C10G2400/28
摘要： An apparatus for catalytic cracking of feedstock includes a first channel in which a feedstock is treated with an adsorbent to obtain a treated intermediate. The apparatus further comprises a separator-reactor vessel. The separator-reactor vessel includes an adsorbent separating region to remove the adsorbent from the treated intermediate. The separator-reactor vessel further includes a second channel connected to the adsorbent separating region. The treated intermediate is contacted with a catalyst in the second channel to produce a cracking yield. The second channel terminates in a catalyst separating region of the separator-reactor vessel. The catalyst is removed from the cracking yield in the catalyst separating region. The separator-reactor vessel further includes a physical partition disposed between the adsorbent separating region and the catalyst separating region to separate the two regions.
摘要翻译：用于原料催化裂化的装置包括第一通道，其中用吸附剂处理原料以获得经处理的中间体。该装置还包括分离器 - 反应器容器。分离器 - 反应器容器包括吸附剂分离区域以从被处理的中间体中除去吸附剂。分离器 - 反应器容器还包括连接到吸附剂分离区的第二通道。处理的中间体与第二通道中的催化剂接触以产生裂解产率。第二通道终止于分离器 - 反应器容器的催化剂分离区域。催化剂从催化剂分离区域的裂解产率中除去。分离器 - 反应器容器还包括设置在吸附剂分离区域和催化剂分离区域之间以分离两个区域的物理隔离物。

4. 发明授权

US07462275B2 Process for conversion of hydrocarbons to saturated LPG and high octane gasoline 有权
标题翻译：将碳氢化合物转化为饱和LPG和高辛烷值汽油的方法
公开(公告)号：US07462275B2
公开(公告)日：2008-12-09
申请号：US10894341
申请日：2004-07-20
申请人： Asit Kumar Das , Debasis Bhattacharyya , Gadari Saidulu , Satayen Kumar Das , Bandaru Venkata Hari P. Gupta , Ramakrishnan Ramanarayanan , Latoor Lal Saroya , Konduri Lakshminarayana , Marri Rama Rao , Vinod Ramchandra Upadhyay , Sukumar Mandal , Deepa Meghavathu , Arumugam Velayutham Karthikeyani , Wadharwa Ram Kalsi , Arvind Pratap Singh , Veena Bansal , Ashok Kumar Tiwari , Venkatachalam Krishnan , Satish Makhija , Sobhan Ghosh , Niranjan Raghunath Raje
发明人： Asit Kumar Das , Debasis Bhattacharyya , Gadari Saidulu , Satayen Kumar Das , Bandaru Venkata Hari P. Gupta , Ramakrishnan Ramanarayanan , Latoor Lal Saroya , Konduri Lakshminarayana , Marri Rama Rao , Vinod Ramchandra Upadhyay , Sukumar Mandal , Deepa Meghavathu , Arumugam Velayutham Karthikeyani , Wadharwa Ram Kalsi , Arvind Pratap Singh , Veena Bansal , Ashok Kumar Tiwari , Venkatachalam Krishnan , Satish Makhija , Sobhan Ghosh , Niranjan Raghunath Raje
IPC分类号： C10G67/00
CPC分类号： C10G11/05 , C10G2400/28
摘要： The present invention relates to a process for the conversion of hydrocarbon streams with 95% true boiling point less than 400° C. to very high yield of liquefied petroleum gas in the range of 45-65 wt % of feed and high octane gasoline, the said process comprises catalytic cracking of the hydrocarbons using a solid fluidizable catalyst comprising a medium pore crystalline alumino-silicates with or without Y-zeolite, non crystalline acidic materials or combinations thereof in a fluidized dense bed reactor operating at a temperature range of 400 to 550° C., pressure range of 2 to 20 kg/cm2 (g) and weight hourly space velocity in range of 0.1 to 20 hour−1, wherein the said dense bed reactor is in flow communication to a catalyst stripper and a regenerator for continuous regeneration of the coked catalyst in presence of air and or oxygen containing gases, the catalyst being continuously circulated between the reactor-regenerator system.
摘要翻译：本发明涉及一种将95％真实沸点低于400℃的烃流转化成非常高产率的进料和高辛烷值汽油的45-65重量％的液化石油气的方法，所述方法包括使用固体可流化催化剂催化裂化烃，所述固体可流化催化剂包含具有或不具有Y-沸石的中孔结晶铝硅酸盐，非结晶酸性物质或其组合，其在400至550℃的温度范围内操作的流化密床反应器 ℃，压力范围为2至20kg / cm2（g）和0.1至20小时-1范围内的重时空速，其中所述致密床反应器与用于连续的催化剂汽提塔和再生器流动连通在存在空气和/或含氧气体的情况下再生焦化的催化剂，催化剂在反应器 - 再生器系统之间连续循环。

5. 发明授权

US09873096B2 Feed nozzle assembly 有权
公开(公告)号：US09873096B2
公开(公告)日：2018-01-23
申请号：US13519140
申请日：2010-12-03
申请人： Bidyut De , Pankaj Kumar Kasliwal , Debasis Bhattacharyya , Venkatachalam Krishnan , Santanam Rajagopal
发明人： Bidyut De , Pankaj Kumar Kasliwal , Debasis Bhattacharyya , Venkatachalam Krishnan , Santanam Rajagopal
IPC分类号： B01F5/02 , B01J4/00
CPC分类号： B01F5/0256 , B01J4/002
摘要： The present subject matter relates to a feed nozzle assembly 100 for atomizing a heavy hydrocarbon feed by mixing the hydrocarbon feed with a diluent and an atomizing media. The feed nozzle assembly 100 includes at least one primary mixing chambers 101 for receiving the liquid hydrocarbon feed and the diluent to create a primary mixture. The primary mixture is than forwarded to a secondary mixing chamber 102. The secondary mixing chamber extends to a tertiary mixing chamber 103. A steam inlet 110 is provided to inject streams of steam to the secondary mixing chamber 102 and to the tertiary mixing chamber 103 through a first opening and a second opening, respectively, located within the steam inlet 110.

6. 发明授权

US09771526B2 Multi riser resid catalytic cracking process and apparatus 有权
公开(公告)号：US09771526B2
公开(公告)日：2017-09-26
申请号：US13808852
申请日：2011-07-04
申请人： Saidulu Gadari , Manoj Kumar Bhuyan , Hari Venkata Devi Prasad Terapalli , Debasis Bhattacharyya , Santanam Rajagopal
发明人： Saidulu Gadari , Manoj Kumar Bhuyan , Hari Venkata Devi Prasad Terapalli , Debasis Bhattacharyya , Santanam Rajagopal
IPC分类号： C10G51/02 , B01J8/26 , C10G11/18 , C10G25/09 , C10G25/12 , B01J8/32 , B01J8/18 , B01J8/00 , C10G55/06 , C10G55/08 , C10G70/04 , C10G51/04
CPC分类号： C10G51/02 , B01J8/0055 , B01J8/1863 , B01J8/26 , B01J8/32 , B01J2208/0084 , C10G11/18 , C10G11/182 , C10G25/09 , C10G25/12 , C10G51/026 , C10G55/06 , C10G55/08 , C10G70/041 , C10G2300/205 , C10G2300/206 , C10G2300/305 , C10G2300/4081 , C10G2300/4093 , C10G2300/708 , C10G2300/807 , C10G2400/02 , C10G2400/20
摘要： This invention provides a fluidized catalytic cracking apparatus and process for converting a hydrocarbon feedstock containing higher concentrations of Conradson Carbon Residue (CCR), metal impurities, etc into lighter products by employing two riser reactors in which the feed impurities are removed using an adsorbent in a first riser reactor and cracking a portion of first riser reactor liquid product in a second riser reactor to lighter products using the active catalyst thus eliminating the catalyst deactivation due to metal, impurities and FCC catalyst activity dilution effect to achieve a better conversion and higher catalyst longevity.

7. 发明申请

US20120024748A1 FLUIDIZED CATALYTIC CRACKING PROCESS 审中-公开
标题翻译：流化催化裂化工艺
公开(公告)号：US20120024748A1
公开(公告)日：2012-02-02
申请号：US13260919
申请日：2010-03-29
申请人： Saravanan Subramani , Debasis Bhattacharyya , Karthikeyani Arumugam Velayutham , Pankaj Kumar Kasliwal , Krishnan Venkatachalam
发明人： Saravanan Subramani , Debasis Bhattacharyya , Karthikeyani Arumugam Velayutham , Pankaj Kumar Kasliwal , Krishnan Venkatachalam
IPC分类号： C10G1/00 , C10G11/02
CPC分类号： C10G11/187 , B01J29/084 , B01J29/40 , B01J29/80 , B01J35/0006 , B01J2229/42 , C10G2300/202 , C10G2300/305 , C10G2300/701 , C10G2400/02
摘要： The present invention relates to a fluidized catalytic cracking process for cracking hydrocarbon feed having organo-sulfur compound as an impurity, said process comprising: adding a heavy metal poisoned spent catalyst to an equilibrium catalyst to obtain a composite circulating catalyst, wherein the heavy metal poisoned spent catalyst is added in an amount to maintain the activity of the circulating catalyst; and obtaining a fluidized catalytic cracked product.The present invention further relates to fluidized catalytic cracked product obtained by the process of the present invention. The sulfur content of the fluidized catalytic cracked product mainly gasoline which is boiling in the range of C5-250° C. reduced by more than 20% (wt/wt). And Research Octane number of the fluidized catalytic cracked product is increased by more than 1 unit.
摘要翻译：本发明涉及一种用于裂化具有有机硫化合物作为杂质的烃进料的流化催化裂化方法，所述方法包括：向沉淀催化剂中加入重金属中毒废催化剂以得到复合循环催化剂，其中重金属中毒添加废催化剂以维持循环催化剂的活性; 得到流化催化裂化产物。本发明还涉及通过本发明的方法获得的流化催化裂化产物。主要是在C5-250℃范围内沸腾的汽油的流化催化裂化产物的硫含量降低了20％（wt / wt）。研究表明，流化催化裂化产物的辛烷值增加了1个以上。

8. 发明授权

US06267873B1 Fluidized catalytic cracking process 有权
标题翻译：流化催化裂化工艺
公开(公告)号：US06267873B1
公开(公告)日：2001-07-31
申请号：US09201896
申请日：1998-11-30
申请人： Asit Kumar Das , Debasis Bhattacharyya , Sukumar Mandal , Vutukuru Lakshmi Narasimha Murthy , Sanjeev Singh , Marri Rama Rao , Sobhan Ghosh
发明人： Asit Kumar Das , Debasis Bhattacharyya , Sukumar Mandal , Vutukuru Lakshmi Narasimha Murthy , Sanjeev Singh , Marri Rama Rao , Sobhan Ghosh
IPC分类号： C10G1100
CPC分类号： C10G11/187 , C10G11/18 , Y10S585/91
摘要： A fluidized catalytic cracking process for catalytically cracking a feed to lighter products includes introducing a heated catalyst and the feed into a bottom riser of a fluidized catalytic cracking apparatus and allowing the heated catalyst and the feed to preaccelerate upwardly within the bottom riser as a mixture; flowing the mixture upwardly from the bottom riser through a plurality of microriser tubes disposed within a regenerator under conditions effective to cause a cracking reaction of the hydrocarbons and result in a mixture including coked catalyst and hydrocarbon vapors; passing the mixture from the microriser tubes through a catalyst separator for separating the coked catalyst from the hydrocarbon vapors; collecting coked catalyst in a stripper for stripping out hydrocarbon vapors carried along with the coked catalyst and introducing the coked catalyst collected into a regenerator; simultaneous with flowing the mixture, combusting the coked catalyst within the regenerator under conditions effective to cause regeneration of the catalyst so that hot regenerated catalyst is produced and heat transferred to the microriser tubes; introducing the hot regenerated catalyst from the regenerator into the bottom riser for facilitating continuous operation; and directing hydrocarbon vapors from the catalyst separator and from the stripper to a fractionator for separation of products.
摘要翻译：将进料催化裂化成较轻产物的流化催化裂化方法包括将加热的催化剂和进料引入流化催化裂化装置的底部提升管中，并允许加热的催化剂和进料作为混合物在底部提升管内向前预加速; 在有效引起烃的裂解反应并产生包括焦化催化剂和烃蒸汽的混合物的条件下，将混合物从底部提升管向上流过设置在再生器内的多个微型管; 将混合物从微循环管通过催化剂分离器，用于将焦化的催化剂与烃蒸气分离; 在汽提器中收集焦化的催化剂，用于汽提与焦炭催化剂一起携带的烃蒸气并将收集的焦化催化剂引入再生器中; 同时使混合物流动，在有效使催化剂再生的条件下在再生器内燃烧焦化催化剂，使得产生热再生催化剂并将热量传递至微型管; 将热再生催化剂从再生器引入底部提升管，以便于连续操作; 并将碳氢化合物蒸汽从催化剂分离器和汽提器引导至用于分离产物的分馏器。

9. 发明授权

US5846402A Process for catalytic cracking of petroleum based feed stocks 失效
标题翻译：石油基原料催化裂化工艺
公开(公告)号：US5846402A
公开(公告)日：1998-12-08
申请号：US855946
申请日：1997-05-14
申请人： Sukumar Mandal , Suresh Kumarshah , Debasis Bhattacharyya , Vutukuru Lakshmi Narasimha Murthy , Asit Kumar Das , Sanjeev Singh , Ram Mohan Thakur , Shankar Sharma , Jagdev Kumar Dixit , Sobhan Ghosh , Satyen Kumar Das , Manoranjan Santra , Latoor Lal Saroya , Marri Rama Rao , Ganga Shanker Mishra , Satish Makhija
发明人： Sukumar Mandal , Suresh Kumarshah , Debasis Bhattacharyya , Vutukuru Lakshmi Narasimha Murthy , Asit Kumar Das , Sanjeev Singh , Ram Mohan Thakur , Shankar Sharma , Jagdev Kumar Dixit , Sobhan Ghosh , Satyen Kumar Das , Manoranjan Santra , Latoor Lal Saroya , Marri Rama Rao , Ganga Shanker Mishra , Satish Makhija
IPC分类号： B01J29/80 , C10G11/05 , C10G11/18 , C10G11/00
CPC分类号： B01J29/80 , C10G2400/20 , C10G2400/28
摘要： A process for selective catalytic cracking of a petroleum-based feedstock to produce a product having a high yield of liquified petroleum gas (LPG) and light olefins having 3 to 4 carbons includes providing a fluidized bed reactor which is a high velocity riser, continuously circulating fluidized bed reactor; providing a solid acidic catalyst comprised of: from 1 to 6% by wt. of ultra stable Y-zeolite; from 8-25% by wt. of Pentasil zeolite which is shape selective; from 0-8% by wt. of an active material which is bottom selective; from 0-1% by wt. of rare earth constituents; and from 91 to 60% by wt. of nonacidic constituents and binder; charging the fluidized bed reactor with the solid acidic catalyst and the petroleum-based feedstock; and cracking the petroleum-based feedstock in the presence of the solid acidic catalyst in the fluidized bed reactor. The reactor is operated at a Weight Hourly Space Velocity (WHSV) ranging from 40 to 120 hr.sup.-1, a ratio of solid acidic catalyst to petroleum-based feedstock ranging from 15 to 25, a temperature at the top of the high velocity riser ranging from 530.degree. C. to 600.degree. C., recycled riser products ranging from 0 to 40%, a pressure in the fluidized bed reactor ranging from 1.0 to 4.0 kg/cm.sup.2 g, and an amount of steam for dilution and quenching of hydrocarbons ranging from 3 to 50 wt. % of the petroleum-based feedstock. The Pentasil zeolite has a pore size ranging from 5 to 6 .ANG. so that the catalyst is highly selective for LPG and C.sub.4 light olefins with minimum dry gas and coke make, and so that the vanadium tolerance of the catalyst is increased and ranges up to 21,000 PPM. The process produces a LPG yield ranging up to 40 to 65 wt. % of the fresh petroleum-based feedstock, a selectivity for the light olefins of at least 40 wt. %, and a selectivity for the LPG of at least 45 wt.
摘要翻译：选择性催化裂化石油基原料以生产具有高产率的液化石油气（LPG）和具有3至4个碳原子的轻质烯烃的产物的方法包括提供流化床反应器，其为高速提升管，连续循环流化床反应器; 提供固体酸性催化剂，其包含：1至6重量％的超稳定Y型沸石; 8-25重量％。具有形状选择性的pentasil沸石; 0-8重量％的底部选择性活性物质; 0-1重量％的稀土成分; 和91〜60重量％。的非酸成分和粘合剂; 用固体酸性催化剂和石油基原料装入流化床反应器; 并在流化床反应器中在固体酸性催化剂存在下裂化石油基原料。反应器以40至120小时-1的重量小时空间速度（WHSV）运行，固体酸性催化剂与石油基原料的比例为15至25，高速提升管顶部的温度范围从530℃至600℃，循环的提升产品的范围为0至40％，流化床反应器的压力范围为1.0至4.0kg / cm2g，以及用于稀释和猝灭烃的蒸汽量 3〜50重量％％的石油基原料。 Pentasil沸石的孔径范围为5至6安格姆，使得催化剂对于具有最少干燥气体和焦炭的LPG和C4轻质烯烃具有高选择性，并且使得催化剂的耐钒性增加并且范围高达21,000 PPM。该方法产生高达40至65重量％的LPG产率。％的新鲜石油基原料，轻质烯烃的选择性至少为40wt。％，并且LPG的选择性至少为45wt。

10. 发明授权

US09433912B2 Process for simultaneous cracking of lighter and heavier hydrocarbon feed and system for the same 有权
标题翻译：较轻和较重的碳氢化合物进料和系统同时开裂的方法
公开(公告)号：US09433912B2
公开(公告)日：2016-09-06
申请号：US13638460
申请日：2011-03-30
申请人： Saravanan Subramani , Debasis Bhattacharyya , Reshmi Manna , Satyen Kumar Das , Tridib Sarkar , Santanam Rajagopal
发明人： Saravanan Subramani , Debasis Bhattacharyya , Reshmi Manna , Satyen Kumar Das , Tridib Sarkar , Santanam Rajagopal
IPC分类号： C10G51/04 , B01J8/28 , B01J8/00 , B01J8/18 , C10G11/18 , C10G51/06
CPC分类号： C10G51/06 , B01J8/0055 , B01J8/1863 , B01J8/26 , B01J8/28 , B01J21/04 , B01J29/088 , B01J35/0006 , B01J35/0026 , B01J35/023 , B01J35/08 , B01J2208/00752 , B01J2208/00761 , B01J2208/00902 , B01J2208/00911 , C10G11/182 , C10G11/185 , C10G2300/104 , C10G2300/1044 , C10G2300/1059 , C10G2300/107 , C10G2300/1074 , C10G2300/1077 , C10G2300/301 , C10G2300/4018 , C10G2300/4025 , C10G2300/4093 , C10G2300/701 , C10G2300/703 , C10G2300/708 , C10G2300/807 , C10G2400/02 , C10G2400/20 , C10G2400/22 , C10G2400/28 , C10G2400/30
摘要： The invention provides for a process and apparatus for simultaneous conversion of lighter and heavier hydrocarbon feedstocks into improved yields of light olefins in the range of C2 to C4, liquid aromatics in the range C6 to C8 mainly benzene, toluene, xylene and ethyl benzene and other useful products employing at least two different reactors operated in series with respect to catalyst flow and parallel with respect to feed flow under different regimes and process conditions with same catalyst system.
摘要翻译：本发明提供了一种用于将较轻和较重烃原料同时转化为C2至C4范围内的轻质烯烃的改进产率的方法和装置，C6至C8范围内的液体芳烃主要是苯，甲苯，二甲苯和乙苯等使用至少两种不同反应器的有用产物，其相对于催化剂流动串联操作，并且在不同方式和工艺条件下使用相同的催化剂体系相对于进料流平行。

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