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公开(公告)号：US11643609B2
公开(公告)日：2023-05-09
申请号：US16321506
申请日：2017-08-04
发明人： Sateesh Daggupati , Clifton Gregg Keeler , Sukumar Mandal , Asit Kumar Das , Sachchit Kumar Majhi , Ajay Gupta , Ajit Vish Sapre
CPC分类号： C10J3/48 , C01B3/44 , C10J3/721 , C10K1/007 , C10K1/024 , C10K1/04 , C10K3/02 , C10K3/023 , C01B2203/042 , C01B2203/0465 , C10J2300/093 , C10J2300/0916 , C10J2300/0943
摘要： The present disclosure relates to a process and a system for producing synthesis gas. The carbonaceous feedstock is gasified, in the presence of at least one of oxygen and steam, in a first reactor to obtain a gaseous mixture comprising H2, CO, CH4, CO2, H2O, tar and char. The gaseous mixture is treated in a second reactor, in the presence of a catalyst, to obtain synthesis gas. The system comprises a first reactor, a connecting conduit, a second reactor, at least one cyclone separator, at least one heat exchanger and at least one synthesis gas filter unit. The process and the system of the present disclosure are capable of producing synthesis gas with comparatively higher conversion of the unreacted char.
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公开(公告)号：US09982200B2
公开(公告)日：2018-05-29
申请号：US14417062
申请日：2013-07-10
发明人： Mahesh Gopalrao Marve , Amit Kumar Parekh , Asit Kumar Das , Rajeshwer Dongara , Devpal Singh Rana , Harender Bisht , Hitesh Kumar Sahu , Jai Kumar Singh , Kalyan Nath , Manoj Yadav , Sampath Nerivetla , Sukumar Mandal
CPC分类号： C10G31/08 , C10G45/26 , C10G2300/202 , C10G2300/4075
摘要： A method for removing chloride impurities from a heavy hydrocarbon stream is disclosed. The heavy hydrocarbon stream is contacted with a stripping medium at a temperature ranging between 100-450° C. and at a pressure ranging between 0.1-2 bar with ratio of the heavy hydrocarbon stream to the stripping medium ranging between 1-30; wherein the temperature is maintained below the initial boiling point of the hydrocarbon stream.
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公开(公告)号：US11945728B2
公开(公告)日：2024-04-02
申请号：US17044727
申请日：2019-04-03
发明人： Sateesh Daggupati , Sachchit Majhi , Sukumar Mandal , Asit Kumar Das , Vipulkumar Rameshbhai Panchotia , Mehul Bharatbhai Joshi , Gopal Ravichandran , Praveen Kumar Chinthala , Swapan Kumar Ghosh , Ajit Vishwanath Sapre
摘要： A process for obtaining vanadium component in the form of vanadium oxide from gasifier slag is disclosed. The process comprises pulverizing the slag to obtain pulverized slag, which is blended with water and an alkali salt to obtain a slurry. The slurry is dried and then roasted in the presence of air to obtain a roasted slag. The roasted slag is leached to obtain a first filtrate comprising the vanadium component. The first filtrate is reacted with a magnesium salt to remove a silica component in the form of a precipitate. The silica free second filtrate is reacted with an ammonium salt to obtain ammonium metavanadate, which is further calcined to obtain the significant amount of vanadium pentoxide (V2O5).
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公开(公告)号：US20210348061A1
公开(公告)日：2021-11-11
申请号：US17272020
申请日：2019-08-28
发明人： Sateesh Daggupati , Sayani Thakur , Sachchit Majhi , Sukumar Mandal , Asit Kumar Das , Vishwanath Sapre Ajit
摘要： The present disclosure provides a method for catalytic conversion of waste plastic into liquid fuel. The method comprises thermally decomposing the waste plastic at a temperature in the range of 350 to 650° C. and under a pressure in the range of 0.0010 psi to 0.030 psi, to obtain a gaseous stream. The gaseous stream is further subjected to four stage sequential cooling to a temperature in the range of −5 to −15° c. to obtain a gas-liquid mixture comprising a gaseous fraction and a liquid fraction. The gas-liquid mixture is fed to the gas-liquid separator to obtain the gaseous fraction comprising C1 to C4 hydrocarbons and the liquid fraction comprising liquid fuel. The method of the present disclosure is simple, economical and energy efficient, which provides a high value liquid fuel with enhanced yield.
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公开(公告)号：US20210283585A1
公开(公告)日：2021-09-16
申请号：US16331872
申请日：2017-09-06
IPC分类号： B01J27/232 , B01J35/10 , B01J37/00 , B01J37/02 , B01J37/10
摘要： The present disclosure relates to a hydrothermally stable catalyst composition. The hydrothermally stable supported catalyst composition comprises K2CO3 impregnated on an amorphous silica-alumina support. The weight ratio of silica to alumina in the support is in the range of 0.1 to 1.5. The amount of K2CO3 is in the range of 5 wt % to 60 wt % with respect to the total catalyst composition. The catalyst composition is characterized by a pore volume in the range of 0.1 cc/g to 0.9 cc/g, a surface area in the range of 40 m2/g to 250 m2/g and an attrition index in the range of 2% to 8%. The present disclosure also relates to a process for preparing the catalyst composition. The catalyst composition provides improved hydrothermal stability, attrition resistance, high pore volume and surface area for gasifying carbonaceous feed at low temperature, as compared to a conventional catalyst composition.
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公开(公告)号：US10329223B2
公开(公告)日：2019-06-25
申请号：US15187005
申请日：2016-06-20
摘要： The present invention provides a process for recovery of propylene and LPG from the fuel gas produced in FCC unit by contacting a heavier hydrocarbon feed with FCC catalyst. The process provides an energy efficient configuration for revamping an existing unit constrained on wet gas compressor capacity or for designing a new gas concentration unit to recover propylene and LPG recovery beyond 97 mole %. The process of the present invention provides an increase propylene and LPG recovery without loading wet gas compressor with marginal increase in liquid loads.
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公开(公告)号：US20190161691A1
公开(公告)日：2019-05-30
申请号：US16321532
申请日：2017-08-08
发明人： Swapan Kumar Ghosh , Mukunda Madhab Baishya , Suyog Subhash Salgarkar , Biswajit Shown , Chirag Dalpatbhai Panseriya , Hitesh Ratibhai Kansagra , Asit Kumar Das
IPC分类号： C10G53/04
摘要： The present disclosure provides a process for reducing oxygenate content of hydrocarbon feed. The process comprises passing and heating the hydrocarbon feed over ion exchange resin resident in a reactor, maintained at a temperature in the range of 90 to 140° C. and a predetermined pressure, at a predetermined liquid hourly space velocity to obtain a heated intermediate fluid. The heated intermediate fluid is cooled to obtain a cooled intermediate fluid. The cooled intermediate fluid is mixed with water to obtain a mixture. The mixture is allowed to settle to obtain an aqueous phase and an organic phase. The aqueous phase is separated from the organic phase to obtain hydrocarbon feed with reduced oxygenate content. The process is simple and environment friendly, enabling removal of 70-90% of the oxygenate content from the hydrocarbon feed.
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公开(公告)号：US09783743B2
公开(公告)日：2017-10-10
申请号：US14148107
申请日：2014-01-06
发明人： Srikanta Dinda , Praveen Kumar Chinthala , Amit Gohel , Ashwani Yadav , Sukumar Mandal , Gopal Ravichandran , Asit Kumar Das
IPC分类号： C10G11/05 , C10G11/18 , B01J29/80 , B01J29/40 , B01J29/08 , B01J29/70 , B01J35/02 , B01J35/10 , B01J37/00
CPC分类号： C10G11/05 , B01J29/088 , B01J29/40 , B01J29/7046 , B01J29/7057 , B01J29/80 , B01J35/023 , B01J35/1019 , B01J35/1038 , B01J37/0045 , B01J2229/183 , B01J2229/186 , B01J2229/36 , B01J2229/42 , C10G11/18 , C10G2400/02 , C10G2400/20 , C10G2400/26 , C10G2400/28
摘要： The present invention relates to a catalyst composition for Fluid Catalytic Cracking (FCC) which contains a combination of a FCC catalyst component and an additive component with certain physical properties attributed therein. The present invention is also directed to provide methods for the preparation of the catalyst composition for FCC. The admixture of the FCC catalyst component and additive component is used in cracking of hydrocarbon feedstock containing hydrocarbons of higher molecular weight and higher boiling point and/or olefin gasoline naphtha feedstock for producing lower yield of fuel gas without affecting the conversion and yield of general cracking products such as gasoline, propylene and C4 olefins.
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9.发明授权Solvent extraction process for removal of naphthenic acids and calcium from low asphaltic crude oil 有权从低沥青原油中除去环烷酸和钙的溶剂萃取方法公开(公告)号：US09238780B2
公开(公告)日：2016-01-19
申请号：US13767369
申请日：2013-02-14
发明人： Harender Bisht , Asit Kumar Das , Bibeka Hazarika , Biswajit Shown , D. P. S. Rana , Mahesh G. Marve , Manthan A. Malvanker , Paras N. Shah , Rohit R. Irabatti , Sukumar Mandal , Suyog S. Salgarkar
摘要： The present disclosure provides a process for obtaining extracted crude oil (ECO) which is substantially free of naphthenic acids, calcium and other impurities from low asphaltic crude oils or their residue fractions by preferential extraction of saturates using at least one solvent.
摘要翻译： 本公开提供了通过使用至少一种溶剂优先提取饱和物而获得基本上不含有低沥青原油或其残余物馏分的环烷酸，钙和其它杂质的萃取原油（ECO）的方法。
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10.发明申请公开(公告)号：US20140195055A1
公开(公告)日：2014-07-10
申请号：US14150349
申请日：2014-01-08
发明人： Anil Wadhwa , Ashish Ranjan Jha , Chandra Saravanan , Asit Kumar Das , Pinakiranjan Sankarprasad Patra , Sukumar Mandal , Praveen Kumar Chinthala , Gopal Ravichandran , Sudhirkumar Raojibhai Patel , Anand Raj Rajan , Ashok Swamisharan Pathak , Saumya Srivastava
IPC分类号： G05D11/00
CPC分类号： G05D11/00 , G05D11/135 , G05D11/139
摘要： A computer implemented blend control system and method for preparation of a hydrocarbon blend from a plurality of component streams have been disclosed. The system includes a product tank for receiving a mixture comprising the plurality of component streams. The system further includes a sensing and analyzing means adapted to sense and analyze a first attribute of the received mixture for obtaining a first attribute data. The system further includes an optimizing means which stores the attribute based model data, receives the first attribute data and compares the received first attribute data with the attribute based model data to compute an optimized proportion data, based on which the component streams are selectively drawn into the product tank for preparing the hydrocarbon blend.
摘要翻译： 已经公开了一种计算机实现的混合控制系统和用于从多个组分流制备烃共混物的方法。 该系统包括用于接收包括多个组分流的混合物的产品罐。 该系统还包括感测和分析装置，适于感测和分析所接收的混合物的第一属性以获得第一属性数据。 该系统还包括存储基于属性的模型数据的优化装置，接收第一属性数据，并将接收到的第一属性数据与基于属性的模型数据进行比较，以计算优化的比例数据，基于该比例数据选择性地绘制组分流 用于制备烃混合物的产品罐。
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