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公开(公告)号：US20230043644A1
公开(公告)日：2023-02-09
申请号：US17788749
申请日：2020-06-18
发明人： Zhibing ZHANG , Zheng ZHOU , Feng ZHANG , Lei LI , Weimin MENG , Baorong WANG , Gaodong YANG , Huaxun LUO , Guoqiang YANG , Hongzhou TIAN , Yu CAO
摘要： The invention discloses a micro-interface strengthening reaction system for preparing poly-α-olefin, which includes: a first polymerization reactor and a second polymerization reactor that are connected with each other in sequence, wherein a first micro-interface generator is disposed outside the first polymerization reactor, and a second micro-interface generator is disposed inside the second polymerization reactor. A bottom of the second polymerization reactor is provided with a discharge port, and the discharge port is connected with a hydrogen halide removal tower. By disposing the first micro-interface generator in the first polymerization reactor while disposing the second micro-interface generator in the second polymerization reactor, on the one hand it increases the mass transfer area between the gas phase and the liquid phase material, improves reaction efficiency and reduces energy consumption, and on the other hand it results in a higher evenness of the poly-α-olefin and improved product quality.
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公开(公告)号：US20220203317A1
公开(公告)日：2022-06-30
申请号：US17617950
申请日：2020-06-18
发明人： Zhibing ZHANG , Zheng ZHOU , Feng ZHANG , Lei LI , Weimin MENG , Baorong WANG , Gaodong YANG , Huaxun LUO , Guoqiang YANG , Hongzhou TIAN , Yu CAO
摘要： A micro-interface strengthening reaction system and method for preparing polyethylene by using a solution process are provided. The system includes a pre-polymerization reactor and a polymerization reactor connected in sequence. The pre-polymerization reactor is provided with a pre-polymerization micro-interface generators, and the polymerization reactor is provided with a micro-interface generator. The system further includes a desolvation tower for removing solvents and impurities from the polyethylene product. A polyethylene inlet is disposed at a middle part of the desolvation tower, and the polyethylene inlet is connected with the flash tank bottom outlet. A nitrogen micro-interface generator for dispersing and breaking high-temperature nitrogen into micro-bubbles is disposed within the desolvation tower. Through installing the micro-interface generators on the pre-polymerization reactor and the micro-interface and on the polymerization reactor, the mass transfer area between gas phase and liquid phase is increased, the reaction efficiency is improved, and energy consumption is reduced.
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3.发明公开公开(公告)号：US20230167043A1
公开(公告)日：2023-06-01
申请号：US17910299
申请日：2020-05-28
发明人： Zhibing ZHANG , Zheng ZHOU , Feng ZHANG , Lei LI , Weimin MENG , Baorong WANG , Gaodong YANG , Huaxun LUO , Guoqiang YANG , Hongzhou TIAN , Yu CAO
CPC分类号： C07C51/265 , B01D3/14 , B01D5/0063 , B01J10/002 , B01J19/245 , B01J4/001 , B01J2204/002 , B01J2204/005
摘要： The invention provides a built-in micro-interface oxidation system for preparing terephthalic acid from p-xylene. The oxidation system includes a first reactor, a rectifying tower and a second reactor which are sequentially connected. A first outlet is disposed on a side wall of the first reactor; a first inlet is disposed on a side wall of the second reactor; a material inlet is disposed on a side wall of the rectifying tower; and a material outlet is disposed at a bottom of the rectifying tower. The first outlet is connected with the material inlet of the rectifying tower; the first inlet is connected with the material outlet of the rectifying tower. Micro-interface units are arranged in the first reactor and the second reactor for dispersing and crushing air into bubbles. Through disposing micro-interface units in reactors, problems of high energy consumption, high raw material consumption and low reaction efficiency are solved.
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4.发明申请公开(公告)号：US20220203318A1
公开(公告)日：2022-06-30
申请号：US17617949
申请日：2020-05-28
发明人： Zhibing ZHANG , Zheng ZHOU , Feng ZHANG , Lei LI , Weimin MENG , Baorong WANG , Gaodong YANG , Huaxun LUO , Guoqiang YANG , Hongzhou TIAN , Yu CAO
摘要： A submerged propylene hydration micro-interface strengthening reaction system and a method are proposed. The system includes a reactor, a first micro-interface generator and a second micro-interface generator. Through the micro-interface generators, the propylene is broken to form micron-scale bubbles, which are mixed with reactants and deionized water to form a gas-liquid emulsion, so as to increase a phase boundary area between gas and liquid phases, and achieve a strengthening mass transfer effect under a lower preset operating condition. The micro-scale bubbles can be fully mixed with the deionized water to from a gas-liquid emulsion. By fully mixing gas and liquid phases, it can ensure that the deionized water in the system is in full contact with propylene, and they are fully in contact with the catalyst, which effectively improves the efficiency of preparing isopropanol.
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5.发明申请公开(公告)号：US20210069666A1
公开(公告)日：2021-03-11
申请号：US16950914
申请日：2020-11-18
发明人： Zhibing ZHANG , Zheng ZHOU , Feng ZHANG , Lei LI , Weimin MENG , Baorong WANG , Gaodong YANG , Huaxun LUO , Guoqiang YANG , Hongzhou TIAN , Yu CAO
IPC分类号： B01J19/18 , B01J19/00 , C07C45/33 , C07C51/255
摘要： A built-in micro interfacial enhanced reaction system and process for PTA production with PX are provided. The system includes a reactor and a micro interfacial unit disposed inside reactor. The reactor includes a shell, an inner cylinder concentrically disposed inside shell, and a circulating heat exchange device partially disposed outside shell, inner cylinder having a bottom end connected to inner bottom surface of the shell in closed manner and an open top end, a region between shell and inner cylinder being first reaction zone, inner cylinder containing second reaction zone and third reaction zone from top to bottom, circulating heat exchange device being connected to inner cylinder and micro interfacial unit respectively. The invention can solve problems of large waste of reaction solvent acetic acid under high temperature and high pressure and being unable to take out the product TA in time during existing process of PTA production with PX.
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公开(公告)号：US20220402787A1
公开(公告)日：2022-12-22
申请号：US17778418
申请日：2020-05-27
发明人： Zhibing ZHANG , Zheng ZHOU , Feng ZHANG , Lei LI , Weimin MENG , Baorong WANG , Gaodong YANG , Huaxun LUO , Guoqiang YANG , Hongzhou TIAN , Yu CAO
摘要： A treatment system and method for cephalosporin wastewater are disclosed. The treatment system includes: a flocculation and sedimentation device, an alkali reaction tank, a PAC reaction tank, a PAM reaction tank, a wastewater heat exchanger, a wastewater heater and an oxidation reactor that are connected with each other in sequence, wherein the wastewater heat exchanger is provided with a material inlet, a material outlet, a heat source inlet and a heat source outlet. An oxidized water from the oxidation reactor enters the wastewater heat exchanger from the heat source inlet, the heat source outlet is connected with a product canister, the product canister is connected with a membrane filtration device to realize concentration treatment of a landfill leachate, the material inlet is connected with the PAM reaction tank, and the material outlet is connected with the wastewater heater. An outer side of the oxidation reactor is provided with a micro-interfacial generation system for dispersing and breaking a gas into bubbles. The treatment system of the prevent invention improves the contact of reaction phase interfaces after arranging the micro-interfacial generation system, which ensures a good wastewater treatment effect under relatively mild operating conditions.
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7.发明申请公开(公告)号：US20220395803A1
公开(公告)日：2022-12-15
申请号：US17778400
申请日：2020-05-28
发明人： Zhibing ZHANG , Zheng ZHOU , Feng ZHANG , Lei LI , Weimin MENG , Baorong WANG , Gaodong YANG , Huaxun LUO , Guoqiang YANG , Hongzhou TIAN , Yu CAO
摘要： A strengthening oxidation system of the external micro-interfacial unit for producing PTA with PX is provided, including: a reactor, a circulating heat exchange device and a micro-interfacial unit. The reactor includes an outer casing and an inner cylinder disposed concentrically inside the outer casing. The circulating heat exchange device is disposed at an exterior of the reactor, and is connected with the outer casing and the inner cylinder respectively, for regulating reaction temperatures of the first reaction zone, the second reaction zone and the third reaction zone inside the reactor in a reaction process of producing PTA with PX. the micro-interfacial unit is connected between the reactor and the circulating heat exchange device, and connected with an external feed pipe of the reactor, for crushing a gas phase material into micro bubbles with a diameter greater than or equal to 1 μm and less than 1 mm and for mixing the micro bubbles with a liquid phase material to form an emulsion at the exterior of the reactor before a reaction material enters each of the reaction zones inside the reactor.
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公开(公告)号：US20220267182A1
公开(公告)日：2022-08-25
申请号：US17617928
申请日：2020-05-27
发明人： Zhibing ZHANG , Zheng ZHOU , Feng ZHANG , Lei LI , Weimin MENG , Baorong WANG , Gaodong YANG , Huaxun LUO , Guoqiang YANG , Hongzhou TIAN , Yu CAO
摘要： An external micro-interface papermaking wastewater treatment system and a wastewater treatment method are proposed. The wastewater treatment system includes a grating water collection tank, a first coagulation sedimentation tank, an inclined screen and a second coagulation sedimentation tank which are connected in sequence, a heat exchanger, a preheater and a wet oxidation reactor, wherein the heat exchanger is provided with a first inlet, a first outlet, a second inlet and a second outlet. A feed inlet is disposed on a side wall of the wet oxidation reactor, an oxidation water outlet is disposed on a top of the wet oxidation reactor, the feed inlet is connected with a micro-interface generator for dispersing and breaking gas into gas bubbles, a liquid phase inlet and a gas phase inlet are disposed on the micro-interface generator, and the gas phase inlet is connected with an air compressor.
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公开(公告)号：US20220204425A1
公开(公告)日：2022-06-30
申请号：US17617948
申请日：2020-05-28
发明人： Zhibing ZHANG , Zheng ZHOU , Feng ZHANG , Lei LI , Weimin MENG , Baorong WANG , Gaodong YANG , Huaxun LUO , Guoqiang YANG , Hongzhou TIAN , Yu CAO
IPC分类号： C07C5/11
摘要： A benzene selective hydrogenation reaction system and a method are provided. The system includes a benzene refiner, a first hydrogenation reactor, a second hydrogenation reactor and a separator which are connected in sequence. The first hydrogenation reactor is provided with a first inlet and a first outlet, and the second hydrogenation reactor is provided with a second inlet and a second outlet. The first inlet is connected to the discharge port of the benzene refiner; the first outlet is connected to the second inlet; the second outlet is connected to the separator. The catalyst outlet is connected to the first hydrogenation reactor for recycling the catalyst into the first hydrogenation reactor. Two micro-interface units are respectively disposed within the first hydrogenation reactor and the second hydrogenation reactor, and the micro-interface units are used for dispersing and breaking hydrogen into micro-bubbles with a micron-scale diameter.
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公开(公告)号：US20210363434A1
公开(公告)日：2021-11-25
申请号：US17042914
申请日：2019-06-06
发明人： Zhibing ZHANG , Zheng ZHOU , Weimin MENG , Feng ZHANG , Lei LI , Baorong WANG , Gaodong YANG , Huaxun LUO , Guoqiang YANG , Hongzhou TIAN , Yu CAO
摘要： The present invention relates to a micro-interface strengthening reaction system and method for heavy oil hydrogenation preparation of ship fuel, including a liquid phase feed unit, a gas phase feed unit, a micro-interface generator, a fixed-bed reactor and a separation tank. The present invention may reduce the pressure during the reaction by 10-80% while ensuring the efficiency of the reaction by breaking the gas to form micro-sized micro-bubbles and making the micro-bubbles mix with heavy oil to form an emulsion to increase the area between the gas and the liquid phase and to achieve the effect of enhancing mass transfer in a lower preset range. And, the present invention greatly enhances the mass transfer, so that the gas-liquid ratio can be greatly reduced. Also, the method of the present invention has low process severity, high production safety, low product cost per ton, and strong market competitiveness.
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