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公开(公告)号：US20230398466A1
公开(公告)日：2023-12-14
申请号：US17912752
申请日：2022-05-16
发明人： Xu ZHAO , Tao ZHOU , Yuanrui LU , Xiangnan ZHAI , Yongpeng TAN , Yan GAO , Yipeng ZHANG , Kaixuan MA , Xiaoling XIE
摘要： 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. The present disclosure has the following beneficial effects: 1) the gravity is used, thereby omitting an intermediate pump and saving the power cost and a matching control system; 2) a pressure difference between every two effect evaporation units is designed, and heat energy provided by a first-effect evaporation unit is continuously evaporated to achieve separation, so that subsequent effect evaporation units do not require external heat sources; and 3) the degree of integration is high, the sealing property is good, a vacuum is easy to realize, a subsequent vacuum system is small, the energy consumption is low, a device is small in occupied area, the construction and installation cost is low, and the operation is simple.
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2.发明公开公开(公告)号：US20240050873A1
公开(公告)日：2024-02-15
申请号：US18260294
申请日：2022-05-16
发明人： Xu ZHAO , Yongpeng TAN , Yan GAO , Kaixuan MA , Yipeng ZHANG , Yuanrui LU , Xiangnan ZHAI , Tao ZHOU , Xiaoling XIE
CPC分类号： B01D1/26 , B01D53/1406 , B01D53/18 , B01D5/0036 , B01D5/0039 , B01D5/006 , B01D5/0054 , C02F1/048 , C02F1/16 , F28B7/00 , B01D2252/103 , B01D2252/20 , C02F2303/10 , C02F2103/36
摘要： 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.
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3.发明公开公开(公告)号：US20240043579A1
公开(公告)日：2024-02-08
申请号：US18258532
申请日：2022-02-28
发明人： Xu ZHAO , Yan GAO , Yonggong LING , Tao ZHOU , Yongning QIU , Shaohua YANG , Chao MI , Qingsheng DONG , Fan ZHANG , Xinxing WANG , Kaixuan MA , Xiaoling XIE
IPC分类号： C08F6/10 , C08F110/06 , B01D45/12 , B01D3/38
CPC分类号： C08F6/10 , C08F110/06 , B01D45/12 , B01D3/38 , B01D2257/708
摘要： An apparatus for removing VOC in polypropylene by steaming process includes: a cyclone separator, used for separating polypropylene particles and entraining gas from an upstream pneumatic system; a preheating tower, communicating with a discharge hole of the cyclone separator, a first steam inlet being provided on a tower body of the preheating tower, and a tail gas outlet being provided on top of the preheating tower; and a devolatilization tower, communicating with a discharge hole of the preheating tower, a second steam inlet being provided on a tower body of the devolatilization tower, a steam outlet being provided on top of the tower, and the steam outlet being communicating with the first steam inlet.
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公开(公告)号：US20200157034A1
公开(公告)日：2020-05-21
申请号：US16347170
申请日：2017-05-15
发明人： Xu ZHAO , Zhongxin SUN , Wanyao ZHANG , Tianbao WANG , Xiangnan ZHAI , Yongpeng TAN , Guohai ZHANG , Yu GUO , Xiaoling XIE
摘要： 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.
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公开(公告)号：US20240109226A1
公开(公告)日：2024-04-04
申请号：US18258517
申请日：2022-02-18
发明人： Xu ZHAO , Yonggong LING , Tao ZHOU , Yan GAO , Kaixuan MA , Qingsheng DONG , Xiaoling XIE
CPC分类号： B29B13/021 , B29B9/08 , B29B13/045 , B29B13/065
摘要： In a tower integrated by the heating and drying section and the cooling section, both sides of the heating and drying section housing are provided with an air inlet box and an air outlet box; the air inlet box is communicating with a heat exchanger and distribution pipes in the heating and drying section housing, the air outlet box is communicating with distribution pipes in the heating and drying section housing and a dust remover; both sides of the cooling section housing are provided with an air inlet box and an air outlet box; the air inlet box is communicating with a heat exchanger and distribution pipes in the cooling section housing; the air outlet box is communicating with distribution pipes in the cooling section housing and a dust remover. The integral device improves the heat exchange effect and preventing the polypropylene particles from aging.
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6.发明申请公开(公告)号：US20190301991A1
公开(公告)日：2019-10-03
申请号：US16346460
申请日：2017-05-15
发明人： Xu ZHAO , Wanyao ZHANG , Yongpeng TAN , Tianbao WANG , Xiangnan ZHAI , Yanshun SHEN , Guohai ZHANG , Yu GUO , Xiaopeng FENG , Yuanyue LIANG , Xiaoling XIE
IPC分类号： G01N15/08
摘要： 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. The present invention largely reduces the testing costs, and meanwhile, actual working conditions can be simulated more accurately, thereby obtaining accurate and reliable design data.
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公开(公告)号：US20190225569A1
公开(公告)日：2019-07-25
申请号：US16330230
申请日：2017-05-15
发明人： Xu ZHAO , Tao SHEN , Tianbao WANG , Wanyao ZHANG , Yuanrui LU , Lilong XU , Min JIA , Dongzhao HAN , Xiaoling XIE , Yongning QIU
摘要： The present invention relates to a method of recycling mother liquid of a PTA refining unit. The present invention recycles waste heat and PT acids of a PTA mother liquid to effectively utilize heat in the PTA mother liquid, solves influence of crystallization of the PT acids on subsequent system, reduces pollution to the environment, and can produce huge economic benefits by using high efficient multistage flash distillation technology, low temperature cogeneration technology, heat pump heating and cooling technology, and low temperature crystallization technology.
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