Patents by Inventor Yongpeng TAN
Yongpeng TAN has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20240050873Abstract: A system and method for improving the water quality of a dehydration tower in a purified terephthalic acid device includes a dehydration washing device, a tail gas condensation device communicating with the top of the dehydration washing device, and a water separation device communicating with the tail gas condensation device. The system reduces energy consumption. The tail gas condensation device uses low-pressure vapor of about 0.05 MPa generated by an Nm-th-stage condenser as a heating medium. Working media are water and the low-pressure vapor, and no organic phase is involved in a process, and a reaction is stable and intrinsically safe. The water in the water separation tower is purified water and concentrated water, the purified water is returned to the top of the dehydration tower, and the concentrated water is mixed with a mother liquor and then enters the dehydration tower.Type: ApplicationFiled: May 16, 2022Publication date: February 15, 2024Inventors: Xu ZHAO, Yongpeng TAN, Yan GAO, Kaixuan MA, Yipeng ZHANG, Yuanrui LU, Xiangnan ZHAI, Tao ZHOU, Xiaoling XIE
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Publication number: 20230398466Abstract: Provided are a separation tower and method for treating condensed water. In order to overcome the defects that an apparatus has high investment and energy consumption and requires high safety due to the need to use an organic phase as an extractant, the present disclosure provides a separation tower for treating condensed water. The water separation tower includes a tower body. Evaporation units for purifying the condensed water are disposed in the tower body. A final-effect condensation unit is disposed below the evaporation units and connected with a vacuum pump.Type: ApplicationFiled: May 16, 2022Publication date: December 14, 2023Inventors: Xu ZHAO, Tao ZHOU, Yuanrui LU, Xiangnan ZHAI, Yongpeng TAN, Yan GAO, Yipeng ZHANG, Kaixuan MA, Xiaoling XIE
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Patent number: 11099114Abstract: A testing device, a testing method, and a design method for a rotary pressure filter. The device includes a stabilizer tank; a buffer tank connected to the stabilizer tank; a filter frame disposed beneath the buffer tank, and connected to the buffer tank; a liquid receiving tank disposed beneath the filter frame; an electronic balance disposed at bottom of the liquid receiving tank; and a seconds counter. The testing method includes adding a certain calculated amount of testing slurry into the filter frame, introducing a gas with a certain pressure into the stabilizer tank, filling the filter frame through the buffer tank, opening a valve at bottom of the filter frame, measuring a mass of the expelled filtrate expelled from the filter frame, measuring time of the filtering process, sampling and analyzing the filter cake and the expelled filtrate according to actual needs; and perform cleaning and drying processes sequentially.Type: GrantFiled: May 15, 2017Date of Patent: August 24, 2021Assignee: TIANHUA INSTITUTE OF CHEMICAL MACHINERY AND AUTOMATION CO., LTDInventors: Xu Zhao, Wanyao Zhang, Yongpeng Tan, Tianbao Wang, Xiangnan Zhai, Yanshun Shen, Guohai Zhang, Yu Guo, Xiaopeng Feng, Yuanyue Liang, Xiaoling Xie
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Patent number: 10906858Abstract: The present invention relates to a method for processing acetic acid solvent in Crude Terephthalic Acid (CTA) in an oxidized unit of a pure terephthalic acid (PTA) industrial apparatus. In the present invention, a filter cake in CTA is washed by means of a two-stage-three-step method. The present invention further shortens the production process of solvent exchanging technique of CTA pressure filters, improves production capacity of a device, reduces investment of the device, reduces energy consumption of a system, and solves the shortcomings of the existing CTA solvent exchanging technique of the pressure filters.Type: GrantFiled: May 15, 2017Date of Patent: February 2, 2021Assignee: Tianhua Institute of Chemical Machinery and Automation Co., LtdInventors: Xu Zhao, Zhongxin Sun, Wanyao Zhang, Tianbao Wang, Xiangnan Zhai, Yongpeng Tan, Guohai Zhang, Yu Guo, Xiaoling Xie
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Publication number: 20200157034Abstract: The present invention relates to a method for processing acetic acid solvent in Crude Terephthalic Acid (CTA) in an oxidized unit of a pure terephthalic acid (PTA) industrial apparatus. In the present invention, a filter cake in CTA is washed by means of a two-stage-three-step method. The present invention further shortens the production process of solvent exchanging technique of CTA pressure filters, improves production capacity of a device, reduces investment of the device, reduces energy consumption of a system, and solves the shortcomings of the existing CTA solvent exchanging technique of the pressure filters.Type: ApplicationFiled: May 15, 2017Publication date: May 21, 2020Inventors: Xu ZHAO, Zhongxin SUN, Wanyao ZHANG, Tianbao WANG, Xiangnan ZHAI, Yongpeng TAN, Guohai ZHANG, Yu GUO, Xiaoling XIE
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Publication number: 20190301991Abstract: The present invention relates to a rotary pressure filter testing apparatus, a testing method and a design method thereof. The apparatus comprises a stabilizer tank; a buffer tank connected to the stabilizer tank; a filter frame disposed beneath the buffer tank, and connected to the buffer tank; a liquid receiving tank disposed beneath the filter frame; an electronic balance disposed at bottom of the liquid receiving tank; and a seconds counter. The testing method is to add a certain amount of calculated testing tank into the filter frame, then introduce a gas with a certain pressure into the stabilizer tank, fill the filter frame through the buffer tank, then open a valve at bottom of the filter frame, measure a mass of discharged mother liquid in the filter frame, measure time of the filtering process, and sample and analyze the filtered filter cake and the mother liquid according to actual needs; subsequently, perform cleaning and drying processes sequentially according to such method.Type: ApplicationFiled: May 15, 2017Publication date: October 3, 2019Inventors: Xu ZHAO, Wanyao ZHANG, Yongpeng TAN, Tianbao WANG, Xiangnan ZHAI, Yanshun SHEN, Guohai ZHANG, Yu GUO, Xiaopeng FENG, Yuanyue LIANG, Xiaoling XIE
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Patent number: 10365040Abstract: A method for drying high moisture, low calorific value lignite for a generating set and recovering water contained therein and an apparatus thereof mainly consist of a rotary steam tube dryer, a washing cooling tower, a coal mill, a first bag filter, a condenser, a weighing surge bunker, a water ring vacuum pump and so on. A drying system is integrated with a milling system, every dryer and the corresponding coal mill are disposed and are directly connected via a surge bunker, thereby not only saving the heat lost during the transportation of pulverized coal, but also omitting a long-distance transportation from a conventional drying system to a conventional milling system, effectively avoiding such phenomena as dust pollution, waste and spontaneous combustion during transportation and transshipment, simplifying the coal preparation system employed in the front-end process of drying.Type: GrantFiled: March 2, 2015Date of Patent: July 30, 2019Assignee: TIANHUA INSTITUTE OF CHEMICAL MACHINERY AND AUTOMATION CO., LTDInventors: Xu Zhao, Yan Dou, Zhongfu Zhan, Yongpeng Tan, Jinwen Shi, Tao Shen, Yonggong Ling, Wei Yang, Yan Zhang
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Patent number: 10273198Abstract: A solvent exchanger and a method is provided for: pressurizing a CTA slurry into a solvent exchanger for separation and obtaining a mother liquor, a bias flow mother liquor and a suspended matter A; washing the suspended matter A to obtain a primary filtrate, a bias flow primary filtrate and a suspended matter B; washing the suspended matter B to obtain a secondary filtrate, a bias flow secondary filtrate and a suspended matter C; washing the suspended matter C to obtain a tertiary filtrate, a bias flow tertiary filtrate and a suspended matter D; washing the suspended matter D to obtain a fourth filtrate, a bias flow fourth filtrate and a suspended matter E; washing the suspended matter E to obtain a fifth filtrate, a bias flow fifth filtrate and a filter cake; and after finished, back-flushing the filter cake and then pulping to obtain a slurry, and discharging.Type: GrantFiled: January 9, 2015Date of Patent: April 30, 2019Assignee: TIANHUA INSTITUTE OF CHEMICAL MACHINERY AND AUTOMATION CO., LTDInventors: Xu Zhao, Wanyao Zhang, Zhongxin Sun, Yongpeng Tan, Xiangnan Zhai, Tianbao Wang, Yuanyue Liang, Guohai Zhang, Xiaopeng Feng, Yanshun Shen
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Patent number: 9902680Abstract: The present invention relates to a method for processing acetic acid solvent in an oxidizing unit of a PTA industrial apparatus; said method uses a pressure filter machine to filter crude terephthalic acid slurry, and then, using a multi-stage counter-current method, uses washing water to wash the acetic acid solvent, and, by means of setting up a bias-current and drainage, prevents residual liquid in the filtrate pipe from entering the next area following the rotation of the pressure filter machine, improving washing efficiency and reducing the amount of washing water; the present invention integrates the processes of filtering and washing crude terephthalic acid into a single pressure filter machine, such that the process is shorter, the occupied floor space is reduced, and energy consumption is lower. A method feeding nitrogen gas into the mother liquor tank and washing liquid tank is used to regulate the pressure balance of the system.Type: GrantFiled: February 11, 2015Date of Patent: February 27, 2018Assignee: TIANHUA INSTITUTE OF CHEMICAL MACHINERY AND AUTOMATION CO., LTDInventors: Xu Zhao, Wanyao Zhang, Zhongxin Sun, Maikui Zhang, Yongpeng Tan, Xiangnan Zhai, Tianbao Wang, Tao Shen, Rui Wang, Yuanyue Liang, Xiaopeng Feng, Guohai Zhang
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Patent number: 9850142Abstract: A method and device are provided for purifying and recycling water vapor from a coal drying process. Included are a temperature-lowering and dehumidifying process, a flash distillation stripping process, and a vacuum condensing process. A condensing tower receives a temperature-lowered exhaust gas with high humidity from a cooling tube and a condensed water of 5˜60° C. from a flash distillation tank, allowing the exhaust gas and the condensed water to contact each other in a vapor-liquid reverse manner, to lower the temperature and dehumidify the exhaust gas. The flash distillation tank performs a vacuum flash distillation to the condensing water pumped therein from the condensing tower. Water vapor of 5˜60° C. evaporated through flash distillation in the flash distillation tank enters into the demisting washer to be dehumidified and then is condensed. The condensed water in the vapor condenser is transferred into a recycled water tank. Non-condensable gas is discharged out.Type: GrantFiled: December 16, 2013Date of Patent: December 26, 2017Assignees: Tianhua Institute of Chemical Machinery and Automation Co., Ltd., National Engineering Research Center of Drying Technology and EquipmentInventors: Xu Zhao, Maikui Zhang, Tao Shen, Zhongfu Zhan, Yongpeng Tan, Min Jia, Tianbao Wang, Xiaoling Xie
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Publication number: 20170183285Abstract: A solvent exchanger and a method is provided for: pressurizing a CTA slurry into a solvent exchanger for separation and obtaining a mother liquor, a bias flow mother liquor and a suspended matter A; washing the suspended matter A to obtain a primary filtrate, a bias flow primary filtrate and a suspended matter B; washing the suspended matter B to obtain a secondary filtrate, a bias flow secondary filtrate and a suspended matter C; washing the suspended matter C to obtain a tertiary filtrate, a bias flow tertiary filtrate and a suspended matter D; washing the suspended matter D to obtain a fourth filtrate, a bias flow fourth filtrate and a suspended matter E; washing the suspended matter E to obtain a fifth filtrate, a bias flow fifth filtrate and a filter cake; and after finished, back-flushing the filter cake and then pulping to obtain a slurry, and discharging.Type: ApplicationFiled: January 9, 2015Publication date: June 29, 2017Inventors: Xu ZHAO, Wanyao ZHANG, Zhongxin SUN, Yongpeng TAN, Xiangnan ZHAI, Tianbao WANG, Yuanyue LIANG, Guohai ZHANG, Xiaopeng FENG, Yanshun SHEN
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Publication number: 20170153025Abstract: The present invention relates to a method for drying high moisture, low calorific value lignite for a generating set and recovering water contained therein and an apparatus thereof, which mainly consisting of a rotary steam tube dryer, a washing cooling tower, a coal mill, a 1st bag filter I, a condenser, a weighing surge bunker, a water ring vacuum pump and so on. In the present invention, a drying system is integrated with a milling system, every dryer and the corresponding coal mill are disposed and are directly connected via a surge bunker, thereby not only saving the heat lost during the transportation of pulverized coal, but also omitting a long-distance transportation from a conventional drying system to a conventional milling system, effectively avoiding such phenomena as dust pollution, waste and spontaneous combustion during transportation and transshipment, simplifying the coal preparation system employed in the front-end process of drying.Type: ApplicationFiled: March 2, 2015Publication date: June 1, 2017Inventors: Xu ZHAO, Yan DOU, Zhongfu ZHAN, Yongpeng TAN, Jinwen SHI, Tao SHEN, Yonggong LING, Wei YANG, Yan ZHANG
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Publication number: 20170081269Abstract: The present invention relates to a method for processing acetic acid solvent in an oxidising unit of a PTA industrial apparatus; said method uses a pressure filter machine to filter crude terephthalic acid slurry, and then, using a multi-stage counter-current method, uses washing water to wash the acetic acid solvent, and, by means of setting up a bias-current and drainage, prevents residual liquid in the filtrate pipe from entering the next area following the rotation of the pressure filter machine, improving washing efficiency and reducing the amount of washing water; the present invention integrates the processes of filtering and washing crude terephthalic acid into a single pressure filter machine, such that the process is shorter, the occupied floor space is reduced, and energy consumption is lower. A method feeding nitrogen gas into the mother liquor tank and washing liquid tank is used to regulate the pressure balance of the system.Type: ApplicationFiled: February 11, 2015Publication date: March 23, 2017Inventors: Xu ZHAO, Wanyao ZHANG, Zhongxin SUN, Maikui ZHANG, Yongpeng TAN, Xiangnan ZHAI, Tianbao WANG, Tao SHEN, Rui WANG, Yuanyue LIANG, Xiaopeng FENG, Guohai ZHANG
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Patent number: 9364785Abstract: A dehumidifying tower having a washing section, a flash-distilling section, and a condensing section. In the washing section, exhaust gas is washed with a cooling liquid to remove at least a portion of solid dust entrained in the exhaust gas, cool the exhaust gas, and condense at least a portion of moisture in the exhaust gas into liquid. The flash-distilling section flash-distills the cooling liquid used in the washing section to produce a cooled cooling liquid and a cooling liquid vapor. Cooling liquid produced by flash-distillation enters the washing section. The flash-distilling section is in gas-phase isolation from the washing section. The condensing section condenses the cooling liquid vapor produced by flash-distillation. The condensing section is configured to be in gas-phase communication with and liquid-phase isolation from the flash-distilling section, and be in both gas-phase and liquid-phase isolation from the washing section.Type: GrantFiled: June 25, 2013Date of Patent: June 14, 2016Assignee: Tiahua Institute of Chemical Machinery and Automation Co., Ltd., National Engineering Research Center of Drying Technology and EquipmentInventors: Xu Zhao, Yonggong Ling, Yan Dou, Tao Shen, Zhongfu Zhan, Yongpeng Tan, Yan Zhang
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Patent number: 9126134Abstract: The invention relates to an exhaust gas separating tower, comprising a washing section, a flash-distilling section above the washing section, and a liquid seal means between the flash flash-distilling section and the washing section. The washing section is configured for washing exhaust gas entering the tower with a cooling liquid to at least partially remove solid dust entrained in the exhaust gas, cool the exhaust gas, and condense at least a portion of moisture in the exhaust gas into liquid. The flash-distilling section is configured for flash-distilling the cooling liquid from the washing section to produce a cooled cooling liquid and a cooling liquid vapor. The liquid seal means is configured so that the cooling liquid produced by flash-distillation can enter the washing section through the liquid seal means while the flash-distilling section is in gas-phase isolation from the washing section, wherein a pressure in the flash-distilling section is lower than that in the washing section.Type: GrantFiled: September 4, 2013Date of Patent: September 8, 2015Assignee: TIANHUA INSTITUTE OF CHEMICAL MACHINERY AND AUTOMATION CO., LTD.Inventors: Xu Zhao, Yonggong Ling, Yan Dou, Tao Shen, Zhongfu Zhan, Yongpeng Tan, Yan Zhang
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Publication number: 20140262738Abstract: A method and device are provided for purifying and recycling water vapor from a coal drying process. Included are a temperature-lowering and dehumidifying process, a flash distillation stripping process, and a vacuum condensing process. A condensing tower receives a temperature-lowered exhaust gas with high humidity from a cooling tube and a condensed water of 5˜60° C. from a flash distillation tank, allowing the exhaust gas and the condensed water to contact each other in a vapor-liquid reverse manner, to lower the temperature and dehumidify the exhaust gas. The flash distillation tank performs a vacuum flash distillation to the condensing water pumped therein from the condensing tower. Water vapor of 5˜60° C. evaporated through flash distillation in the flash distillation tank enters into the demisting washer to be dehumidified and then is condensed. The condensed water in the vapor condenser is transferred into a recycled water tank. Non-condensable gas is discharged out.Type: ApplicationFiled: December 16, 2013Publication date: September 18, 2014Applicants: National Engineering Research Center of Drying Technology and Equipment, TIANHUA INSTITUTE OF CHEMICAL MACHINERY AND AUTOMATION CO., LTD.Inventors: Xu Zhao, Maikui Zhang, Tao Shen, Zhongfu Zhan, Yongpeng Tan, Min Jia, Tianbao Wang, Xiaoling Xie
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Publication number: 20140060333Abstract: The invention relates to an exhaust gas separating tower, comprising a washing section, a flash-distilling section above the washing section, and a liquid seal means between the flash flash-distilling section and the washing section. The washing section is configured for washing exhaust gas entering the tower with a cooling liquid to at least partially remove solid dust entrained in the exhaust gas, cool the exhaust gas, and condense at least a portion of moisture in the exhaust gas into liquid. The flash-distilling section is configured for flash-distilling the cooling liquid from the washing section to produce a cooled cooling liquid and a cooling liquid vapor. The liquid seal means is configured so that the cooling liquid produced by flash-distillation can enter the washing section through the liquid seal means while the flash-distilling section is in gas-phase isolation from the washing section, wherein a pressure in the flash-distilling section is lower than that in the washing section.Type: ApplicationFiled: September 4, 2013Publication date: March 6, 2014Applicant: Tianhua Institute of Chemical Machinery and Automation Co., LtdInventors: Xu ZHAO, Yonggong LING, Yan DOU, Tao SHEN, Zhongfu ZHAN, Yongpeng TAN, Yan ZHANG
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Publication number: 20140000461Abstract: A dehumidifying tower having a washing section, a flash-distilling section, and a condensing section. In the washing section, exhaust gas is washed with a cooling liquid to remove at least a portion of solid dust entrained in the exhaust gas, cool the exhaust gas, and condense at least a portion of moisture in the exhaust gas into liquid. The flash-distilling section flash-distills the cooling liquid used in the washing section to produce a cooled cooling liquid and a cooling liquid vapor. Cooling liquid produced by flash-distillation enters the washing section. The flash-distilling section is in gas-phase isolation from the washing section. The condensing section condenses the cooling liquid vapor produced by flash-distillation. The condensing section is configured to be in gas-phase communication with and liquid-phase isolation from the flash-distilling section, and be in both gas-phase and liquid-phase isolation from the washing section.Type: ApplicationFiled: June 25, 2013Publication date: January 2, 2014Applicants: National Engineering Research Center of Drying Technology and Equipment, Tianhua Institute of Chemical Machinery and Automation Co., LtdInventors: Xu ZHAO, Yonggong LING, Yan DOU, Tao SHEN, Zhongfu ZHAN, Yongpeng TAN, Yan Zhang