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公开(公告)号：US10828599B2
公开(公告)日：2020-11-10
申请号：US16341867
申请日：2017-10-03
发明人： Andrei Anatolievich Eliseev , Artem Anatolievich Eliseev , Dmitrii Igorevich Petukhov , Andrei Aleksandrovich Poyarkov , Alexey Viktorovich Lukashin , Ekaterina Aleksandrovna Chernova , Evgenii Sergeevich Piatkov
摘要： The invention relates to the field of membrane gas separation. A method of removing components of gas mixtures which is based on passing the components of a gas mixture through a nanoporous membrane and subsequently selectively absorbing them with a liquid absorbent that is in contact with the nanoporous membrane, wherein to prevent the gas from getting into the liquid phase of the absorbent and the liquid phase of the absorbent from getting into the gas phase, a nanoporous membrane with homogeneous porosity (size distribution less than 50%) and a pore diameter in the range of 5-500 nm is used, and the pressure differential between the gas phase and the liquid absorbent is kept below the membrane bubble point pressure. An acid gas removal performance of more than 0.3 nm3/(m2 hour) in terms of CO2 is achieved at a hollow-fiber membrane packing density of up to 3200 m2/m3, which corresponds to a specific volumetric performance of acid gas removal of up to 1000 nm3 (m3 hour). The technical result is that of providing effective extraction of undesirable components from natural and process gas mixtures.
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2.发明申请公开(公告)号：US20190240616A1
公开(公告)日：2019-08-08
申请号：US16341867
申请日：2017-10-03
发明人： Andrei Anatolievich Eliseev , Artem Anatolievich Eliseev , Dmitrii Igorevich Petukhov , Andrei Aleksandrovich Poyarkov , Alexey Viktorovich Lukashin , Ekaterina Aleksandrovna Chernova , Evgenii Sergeevich Piatkov
摘要： The invention relates to the field of membrane gas separation. A method of removing components of gas mixtures which is based on passing the components of a gas mixture through a nanoporous membrane and subsequently selectively absorbing them with a liquid absorbent that is in contact with the nanoporous membrane, wherein to prevent the gas from getting into the liquid phase of the absorbent and the liquid phase of the absorbent from getting into the gas phase, a nanoporous membrane with homogeneous porosity (size distribution less than 50%) and a pore diameter in the range of 5-500 nm is used, and the pressure differential between the gas phase and the liquid absorbent is kept below the membrane bubble point pressure. An acid gas removal performance of more than 0.3 nm3/(m2 hour) in terms of CO2 is achieved at a hollow-fiber membrane packing density of up to 3200 m2/m3, which corresponds to a specific volumetric performance of acid gas removal of up to 1000 nm3 (m3 hour). The technical result is that of providing effective extraction of undesirable components from natural and process gas mixtures.
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公开(公告)号：US10047306B2
公开(公告)日：2018-08-14
申请号：US15567154
申请日：2016-04-26
申请人： Rosneft Oil Company
发明人： Andrey Anatolievich Eliseev , Dmitriy Igorevich Petukhov , Artem Anatolievich Eliseev , Viktor Andreevich Brotcman , Alexey Viktorovich Lukashin
CPC分类号： C10G70/045 , B01D53/228 , B01D53/268 , B01D61/00 , B01D67/006 , B01D67/0065 , B01D71/025 , B01D2256/24 , B01D2256/245 , B01D2257/702 , B01D2311/04 , B01D2311/10 , B01D2311/14 , B01D2325/02 , B01D2325/26
摘要： The invention relates to membrane gas separation, in particular to a method of fractionating mixtures of low molecular weight hydrocarbons based on the capillary condensation of the mixture components in the pores of microporous membranes having uniform porosity and a pore diameter of 5 to 250 nm, wherein, for capillary condensation, the temperature of the membrane and the pressure on the permeate side are kept below the temperature and the pressure of the feed mixture. The method provides significantly increasing membrane permeability with respect to condensable components, and also component separation factors, while also allowing to avoid deep cooling of the gas stream fed to a membrane module, and to carry out gas separation under insignificant cooling of the membrane on the permeate side (down to -50° C.). The invention provides for energy-efficient fractionation of hydrocarbon mixtures, including separation and drying of natural and associated petroleum gases.
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公开(公告)号：US20180100109A1
公开(公告)日：2018-04-12
申请号：US15567154
申请日：2016-04-26
申请人： Rosneft Oil Company
发明人： Andrey Anatolievich Eliseev , Dmitriy Igorevich Petukhov , Artem Anatolievich Eliseev , Viktor Andreevich Brotcman , Alexey Viktorovich Lukashin
CPC分类号： C10G70/045 , B01D53/228 , B01D53/268 , B01D61/00 , B01D63/08 , B01D71/02 , B01D71/025 , B01D2256/24 , B01D2256/245 , B01D2257/702 , B01D2311/04 , B01D2311/10 , B01D2311/14 , B01D2325/02 , B01D2325/26 , B82B3/00
摘要： The invention relates to the field of membrane gas separation and can be used for the energy-efficient fractionation of hydrocarbon mixtures, including separation and drying of natural and associated petroleum gases. Proposed is a method of fractionating mixtures of low molecular weight hydrocarbons which is based on the capillary condensation of the components of a mixture in the pores of microporous membranes with uniform porosity and a pore diameter in a range of 5 to 250 nm, wherein, for capillary condensation, the temperature of the membrane and the pressure on the permeate side are kept below the temperature and the pressure of the feed mixture such that the equilibrium pressure of the saturated vapors of the separated components on the permeate side is lower than the partial pressure of the components in the feed stream. This method makes it possible to significantly increase membrane permeability with respect to condensable components (over 500 m3/(m2·atm·h) for n-butane), and also component separation factors (the n-C4H10/CH4 separation factor is greater than 60 for a mixture having an associated petroleum gas composition), while also making it possible to dispense with deep cooling of the gas stream fed to a membrane module, and to carry out gas separation under insignificant cooling of the membrane on the permeate side (down to −50° C.) For more effective gas separation, permeate is collected in a liquid state. A technical effect of the invention resides in providing a method that makes it possible to efficiently remove high-boiling hydrocarbons (C3-C6) from natural gas and associated petroleum gases, as well as to obtain gas mixtures with a constant composition.
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