Patents Assigned to Wuhan Kaidi Engineering Technology Research Institute Co., Ltd.
  • Patent number: 10450519
    Abstract: A method for hydrofining of middle distillates of Fischer-Tropsch synthetic full-range distillates, the method including: 1) separating middle distillates of Fischer-Tropsch synthetic full-range distillates to yield light distillates, heavy distillates and intermediate distillates; 2) metering the light distillates, the heavy distillates and the intermediate distillates; providing a hydrogenation reactor filled with a hydrofining catalyst and including a first feed inlet, a second feed inlet and a third feed inlet from the top down; mixing hydrogen and the light distillates, the heavy distillates and the intermediate distillates, respectively, and introducing resulting mixtures to the hydrogenation reactor via the first feed inlet, the second feed inlet and the third feed inlet, respectively; and 3) introducing products from 2) to a gas-liquid separator to yield hydrogen and liquid products, returning the hydrogen to the hydrogenation reactor, and introducing the liquid products to a fractionating column for
    Type: Grant
    Filed: August 31, 2017
    Date of Patent: October 22, 2019
    Assignee: WUHAN KAIDI ENGINEERING TECHNOLOGY RESEARCH INSTITUTE CO., LTD.
    Inventors: Weiguang Yang, Youliang Shi
  • Patent number: 10370602
    Abstract: An apparatus for producing diesel fuel and jet fuel using Fischer-Tropsch synthetic oil, the apparatus including a hydrofining reactor, a hot separator, a first rectifying column, a hydrocracking reactor, a hydroisomerization reactor, a second rectifying column, a first mixing chamber and a second mixing chamber. The hydrofining reactor includes a raw material inlet and a hydrofining product outlet. The hot separator includes a separated oil outlet and a hydrofining product inlet which is connected to the hydrofining product outlet. The first rectifying column includes a tail oil fraction outlet, a diesel fraction outlet and a separated oil inlet which is connected to the separated oil outlet. The first mixing chamber includes a circulating hydrogen inlet, a first mixture outlet and a tail oil fraction inlet which is connected to the tail oil fraction outlet.
    Type: Grant
    Filed: September 4, 2017
    Date of Patent: August 6, 2019
    Assignee: WUHAN KAIDI ENGINEERING TECHNOLOGY RESEARCH INSTITUTE CO., LTD.
    Inventors: Tao Zhao, Bo Lai, Weiguang Yang, Dawei Wang, Xuewen Hao, Yanjie Zhou, Li Xu
  • Patent number: 10363550
    Abstract: A catalyst including cobalt, a carrier including silica, and a selective promoter including zirconium. The cobalt and the selective promoter are disposed on the surface of the carrier, and the outer surfaces of the active component cobalt and the selective promoter zirconium are coated with a shell layer including a mesoporous material. A method for preparing the catalyst, including: 1) soaking the carrier including silica into an aqueous solution including a zirconium salt, aging, drying, and calcining a resulting mixture to yield a zirconium-loaded carrier including silica; 2) soaking the zirconium-loaded carrier including silica into an aqueous solution including a cobalt salt, aging, drying, calcining a resulting mixture to yield a primary cobalt-based catalyst; 3) preparing a precursor solution of a mesoporous material; and 4) soaking the primary cobalt-based catalyst into the precursor solution of the mesoporous material; and crystalizing, washing, drying, and calcining a resulting mixture.
    Type: Grant
    Filed: October 24, 2016
    Date of Patent: July 30, 2019
    Assignee: WUHAN KAIDI ENGINEERING TECHNOLOGY RESEARCH INSTITUTE CO., LTD.
    Inventors: Shasha Rao, Dechen Song, Qianqian Liu, Shenke Zheng
  • Patent number: 10286389
    Abstract: A carrier for selectively synthesizing kerosene fraction from syngas, the carrier including the following components in parts by weight: 5-50 parts of mesoporous zirconia (ZrO2), 10-55 parts of a silicoaluminophosphate (SAPO) molecular sieve, 5-50 parts of modified mesoporous molecular sieve Al-SBA-16, 1-3 parts of sesbania gum powder, and 10-70 parts of alumina A catalyst includes a soluble cobalt salt and the aforesaid carrier. The soluble cobalt salt is loaded on the surface of the carrier.
    Type: Grant
    Filed: December 12, 2017
    Date of Patent: May 14, 2019
    Assignee: WUHAN KAIDI ENGINEERING TECHNOLOGY RESEARCH INSTITUTE CO., LTD.
    Inventors: Li Xu, Wanwan Wang, Youliang Shi
  • Patent number: 10266776
    Abstract: A catalyst including between 50.0 and 99.8 percent by weight of iron, between 0 and 5.0 percent by weight of a first additive, between 0 and 10 percent by weight of a second additive, and a carrier. The first additive is ruthenium, platinum, copper, cobalt, zinc, or a metal oxide thereof. The second additive is lanthanum oxide, cerium oxide, magnesium oxide, aluminum oxide, silicon dioxide, potassium oxide, manganese oxide, or zirconium oxide.
    Type: Grant
    Filed: October 20, 2016
    Date of Patent: April 23, 2019
    Assignee: WUHAN KAIDI ENGINEERING TECHNOLOGY RESEARCH INSTITUTE CO., LTD.
    Inventors: Yilong Chen, Yanfeng Zhang, Jiangang Chen, Dechen Song, Juan Zhang, Taomei Sun
  • Patent number: 10227537
    Abstract: A method of hydrotreatment of Fischer-Tropsch synthesis products, the method including: 1) mixing Fischer-Tropsch wax with a sulfur-containing liquid additive, contacting a resulting mixture with hydrogen, feeding a hydrogen-containing mixture to a first reaction region, feeding an effluent from the first reaction region to a second reaction region, and carrying out hydrocracking reaction; 2) feeding a hydrocracking product from the second reaction region and Fischer-Tropsch naphtha and diesel fuel to a third reaction region, carrying out hydrofining reaction; feeding an effluent from the hydrofining reaction to a fourth reaction region, and carrying out hydroisomerizing pour-point depression reaction; and 3) feeding an effluent from the fourth reaction region to a gas-liquid separation system to yield hydrogen-rich gas and liquid products, recycling the hydrogen-rich gas, and feeding the liquid products to a distilling system.
    Type: Grant
    Filed: August 10, 2017
    Date of Patent: March 12, 2019
    Assignee: WUHAN KAIDI ENGINEERING TECHNOLOGY RESEARCH INSTITUTE CO., LTD.
    Inventors: Bo Lai, Youliang Shi, Li Xu
  • Patent number: 10220375
    Abstract: A catalyst, including a molecular sieve carrier and an active component. The active component includes: iron, manganese, copper, and a basic promoter potassium. The molecular sieve carrier is a cerium salt and/or praseodymium salt modified-aluminosilicate molecular sieve carrier and/or silica-rich molecular sieve carrier. A method for preparing a catalyst for Fischer-Tropsch synthesis, includes: 1) fully dissolving a ferric salt, a manganese salt, a copper salt, and an alkali or a salt containing potassium element in water to yield an aqueous solution, stirring and adding sodium lauryl sulfate to the aqueous solution, and continuing stirring to yield a uniform solution; and impregnating a modified molecular sieve in the uniform solution to yield a mixed solution; and 2) drying and calcining the mixed solution to yield the catalyst.
    Type: Grant
    Filed: October 26, 2015
    Date of Patent: March 5, 2019
    Assignee: WUHAN KAIDI ENGINEERING TECHNOLOGY RESEARCH INSTITUTE CO., LTD.
    Inventors: Weiguang Yang, Qianqian Liu, Dechen Song, Changyuan Li, Xiaodong Zhan, Jiaqi Jin, Yanfeng Zhang
  • Patent number: 10221360
    Abstract: A method for Fischer-Tropsch synthesis, the method including: 1) gasifying a raw material to obtain a crude syngas including H2, CO and CO2; 2) electrolyzing a saturated NaCl solution using a chloralkali process to obtain a NaOH solution, Cl2 and H2; 3) removing the CO2 in the crude syngas using the NaOH solution obtained in 2) to obtain a pure syngas; and 4) insufflating the H2 obtained in 2) to the pure syngas to adjust a mole ratio of CO/H2 in the pure syngas, and then introducing the pure syngas for Fischer-Tropsch synthesis reaction. A device for Fischer-Tropsch synthesis includes a gasification device, an electrolyzer, a first gas washing device, and a Fischer-Tropsch synthesis reactor.
    Type: Grant
    Filed: December 4, 2017
    Date of Patent: March 5, 2019
    Assignee: WUHAN KAIDI ENGINEERING TECHNOLOGY RESEARCH INSTITUTE CO., LTD.
    Inventors: Daxiang Wang, Pingyu Kuai, Meng Li, Yanfeng Zhang
  • Patent number: 10189013
    Abstract: A monolithic catalyst, including cobalt, a metal matrix, a molecular sieve membrane, and an additive. The metal matrix is silver, gold, copper, platinum, titanium, molybdenum, iron, tin, or an alloy thereof. The molecular sieve membrane is mesoporous silica SBA-16 which is disposed on the surface of the metal matrix and is a carrier of the active component and the additive. The thickness of the carrier is between 26 and 67 ?m. The additive is lanthanum, zirconium, cerium, rhodium, platinum, rhenium, ruthenium, titanium, magnesium, calcium, strontium, or a mixture thereof. A method for preparing the monolithic catalyst is also provided.
    Type: Grant
    Filed: June 20, 2016
    Date of Patent: January 29, 2019
    Assignee: WUHAN KAIDI ENGINEERING TECHNOLOGY RESEARCH INSTITUTE CO., LTD.
    Inventors: Changyuan Li, Qianqian Liu, Dechen Song, Weiguang Yang, Xiaodong Zhan, Jiaqi Jin, Yanfeng Zhang
  • Patent number: 10131855
    Abstract: A method for pressurized pyrolysis of biomass in a pressurized pyrolysis furnace, including: 1) crushing and screening biomass; collecting biomass having desired particle sizes; and delivering the biomass having desired particle sizes to a pulse-type feeding system; 2) transporting the biomass to a pyrolysis furnace via the pulse-type feeding system; synchronously initiating microwave and a plasma torch, the microwave producing a microwave field in the pyrolysis furnace, working gas of the plasma torch being ionized for the first time to produce plasma jet entering the pyrolysis furnace; and 3) allowing the syngas generated in 2) to continue moving upwards and introducing the syngas out from the top of the pyrolysis furnace; chilling the syngas; introducing the syngas to a cyclone separator to separate residues; and then cooling and purifying the syngas using a cooling device and a purifying device, respectively, to produce clean syngas.
    Type: Grant
    Filed: May 28, 2016
    Date of Patent: November 20, 2018
    Assignee: WUHAN KAIDI ENGINEERING TECHNOLOGY RESEARCH INSTITUTE CO., LTD.
    Inventors: Yanfeng Zhang, Liang Zhang, Yilong Chen
  • Patent number: 10077407
    Abstract: A biomass gasification system. The system includes: a) a gasifier; b) a waste heat exchanger; c) a waste heat boiler; d) a cyclone separator; e) a gas scrubber; f) a shift reactor; g) a desulfurizing tower; h) a first decarburizing tower; i) a synthesizing tower; and j) a second decarburizing tower. In the system, the gasifier, the waste heat exchanger, the cyclone separator, the gas scrubber, the shift reactor, the desulfurizing tower, the first decarburizing tower, the synthesizing tower, and the second decarburizing tower are connected sequentially. In addition, CO2 outlets of the first decarburizing tower and the second decarburizing tower are both connected to a cold medium inlet of the waste heat exchanger; and a cold medium outlet of the waste heat exchanger is connected to a gasifying agent entrance of the gasifier.
    Type: Grant
    Filed: September 11, 2016
    Date of Patent: September 18, 2018
    Assignee: WUHAN KAIDI ENGINEERING TECHNOLOGY RESEARCH INSTITUTE CO., LTD.
    Inventors: Yanfeng Zhang, Liang Zhang, Minggui Xia, Wenyan Liu
  • Patent number: 10072530
    Abstract: A hybrid power generation system using solar energy and bioenergy, including a solar thermal boiler system, a biomass boiler system, and a turbogenerator system. The solar thermal boiler system includes a trough solar collector, a heat collector, an oil circulating pump, a storage tank for storing heat transfer oil, a solar thermal heater, a solar thermal evaporator, a main pipe transporting saturated steam, and an auxiliary boiler. Heat transfer oil output from a solar light field of the solar thermal boiler system is transmitted through and transfers heat to the solar thermal evaporator and the solar thermal heater, and the heat transfer oil returns to the storage tank for storing heat transfer oil. The heat transfer oil in the storage tank is pumped to the solar light field via the oil circulating pump.
    Type: Grant
    Filed: October 11, 2016
    Date of Patent: September 11, 2018
    Assignee: WUHAN KAIDI ENGINEERING TECHNOLOGY RESEARCH INSTITUTE CO., LTD.
    Inventors: Yilong Chen, Yanfeng Zhang, Wenyan Liu
  • Patent number: 10005966
    Abstract: A method for modifying bio-oil derived from biomass pyrolysis, the method including: 1) adding an inorganic salt and an organic demulsifier to a bio-oil; oscillating or stirring the resulting mixture, and resting the resulting mixture, to yield a lower layer being an aqueous solution and an upper layer being the bio-oil, and collecting the bio-oil; 2) employing a zeolite molecular sieve-loaded clay as a catalyst, and aging the catalyst using pure steam, to yield a modified catalyst; and 3) adding the modified catalyst obtained in 2) to a conventional catalytic cracking reactor, injecting the bio-oil obtained in 1) to the conventional catalytic cracking reactor using a piston pump, and allowing the bio-oil to react under a weight hourly space velocity (WHSV) of between 6 and 15 h?1, a temperature of between 380 and 700° C., and a pressure between 0.1 and 0.8 megapascal.
    Type: Grant
    Filed: November 8, 2015
    Date of Patent: June 26, 2018
    Assignee: WUHAN KAIDI ENGINEERING TECHNOLOGY RESEARCH INSTITUTE CO., LTD.
    Inventors: Dashan Wang, Dechen Song, Qianqian Liu, Shenke Zheng, Xiaodong Zhan, Jiaqi Jin, Yanfeng Zhang
  • Patent number: 9909496
    Abstract: A power generation system, including: a solar energy concentration system, a biomass gasification device, a gas-powered generator, a steam turbine, a steam-powered generator. The solar energy concentration system is connected to a solar energy heat exchange system. The biomass gasification device is connected to the gas-powered generator. The gas outlet of the gas turbine is connected to the gas exhaust heat system. The second steam outlet of the gas exhaust heat system is connected to the second and the third cylinders of the steam turbine. The first steam outlet of the gas exhaust heat system and the steam outlet of the solar energy heat exchange system are connected to a steam mixing regulating system. The mixed steam outlet of the steam mixing regulating system is connected to the first cylinder of the steam turbine.
    Type: Grant
    Filed: October 11, 2016
    Date of Patent: March 6, 2018
    Assignee: WUHAN KAIDI ENGINEERING TECHNOLOGY RESEARCH INSTITUTE CO., LTD.
    Inventors: Yilong Chen, Yanfeng Zhang, Hongming Tang, Wenyan Liu
  • Patent number: 9902907
    Abstract: A gasification system for producing synthetic gas from biomass, including: a biomass material pre-processing part; a pyrolysis part; a condensing part; and a gasification part. The pyrolysis part includes a pyrolysis bed and a combustion bed. The condensate tank of the condensing part is connected to a non-condensable pyrolysis gas compressor via a pipeline; an output of the non-condensable pyrolysis gas compressor is connected to the pyrolysis bed and the combustion bed. The non-condensable pyrolysis gas acts as a fuel of the combustion bed and a fluidizing medium of the pyrolysis bed.
    Type: Grant
    Filed: December 29, 2015
    Date of Patent: February 27, 2018
    Assignee: WUHAN KAIDI ENGINEERING TECHNOLOGY RESEARCH INSTITUTE CO., LTD.
    Inventors: Kan Song, Manyi Jiang, Qin Sun, Shirong Zhang, Haiqing Zhang, Jinqiao Zhang
  • Patent number: 9873841
    Abstract: A method for gasifying biomass using a gasifier, the gasifier including a furnace body and a fuel pretreatment system. The method includes 1) crushing and sieving a biomass fuel to yield particle size-qualified fuel particles, 2) exciting working gas to yield plasma, and spraying the plasma into the gasifier, 3) spraying the particle size-qualified fuel particles into the gasifier via nozzles, synchronously spraying an oxidizer via an oxygen/vapor inlet into the gasifier, and 4) monitoring the temperature and components of the syngas, regulating an oxygen flow rate, a vapor flow rate, and microwave power to maintain the process parameters within a preset range and to control a temperature of the syngas to be between 900 and 1200° C., collecting the syngas from the syngas outlet at the top of the furnace body, and discharging liquid slag from the slag outlet.
    Type: Grant
    Filed: November 6, 2016
    Date of Patent: January 23, 2018
    Assignee: WUHAN KAIDI ENGINEERING TECHNOLOGY RESEARCH INSTITUTE CO., LTD.
    Inventors: Yilong Chen, Yanfeng Zhang, Minggui Xia, Liang Zhang
  • Patent number: 9841008
    Abstract: Solar and steam hybrid power generation system including a solar steam generator, an external steam regulator, a turboset, and a power generator. A steam outlet end of the solar steam generator is connected to a steam inlet of the turboset. A steam outlet end of the external steam regulator is connected to the steam inlet of the turboset. A steam outlet of the turboset is connected to the input end of a condenser, and the output end of the condenser is connected to the input end of a deaerator. The output end of the deaerator is connected to the input end of a water feed pump. The output end of the water feed pump is connected to a circulating water input end of the solar steam generator. The output end of the water feed pump is connected to a water-return bypass of the external steam.
    Type: Grant
    Filed: June 11, 2014
    Date of Patent: December 12, 2017
    Assignee: WUHAN KAIDI ENGINEERING TECHNOLOGY RESEARCH INSTITUTE CO., LTD.
    Inventors: Yilong Chen, Qingping Yang, Yanfeng Zhang
  • Patent number: 9833760
    Abstract: A method for preparing high-temperature, active particle-containing steam. The method includes: 1) preparing steam; selecting one or several non-oxidizing gases as a working gas; ionizing the working gas into a plasma working medium by using a plasma generator; and 2) injecting the plasma working medium into a high-temperature steam generator to form high-temperature ionized environment while introducing the steam into the high-temperature steam generator for allowing the steam to contact with the plasma working medium so that the steam is heated and activated to form active particle-containing steam. A device for preparing the high-temperature, active particle-containing steam is also provided.
    Type: Grant
    Filed: June 28, 2013
    Date of Patent: December 5, 2017
    Assignee: WUHAN KAIDI ENGINEERING TECHNOLOGY RESEARCH INSTITUTE CO., LTD.
    Inventors: Yilong Chen, Yanfeng Zhang, Minxia Cao, Hong Li
  • Patent number: 9795950
    Abstract: A catalyst for preparing aviation fuel from synthetic oil obtained by Fischer-Tropsch process, including: between 20 and 50 percent by weight of an amorphous aluminum silicate, between 5 and 20 percent by weight of alumina, between 20 and 60 percent by weight of a hydrothermally modified zeolite, between 0.5 and 1.0 percent by weight of a Sesbania powder, between 0.5 and 5 percent by weight of nickel oxide, and between 5 and 15 percent by weight of molybdenum oxide. The invention also provides a method for preparing the catalyst.
    Type: Grant
    Filed: November 14, 2016
    Date of Patent: October 24, 2017
    Assignee: WUHAN KAIDI ENGINEERING TECHNOLOGY RESEARCH INSTITUTE CO., LTD.
    Inventors: Wanwan Wang, Dechen Song, Li Xu
  • Patent number: 9758844
    Abstract: A method for recovering ruthenium from a spent ruthenium-based catalyst carried on aluminum oxide includes: drying, calcining, and cooling a spent catalyst; grinding the spent catalyst into black powder; placing the black powder in a fluidized bed reactor, purging the reactor with hydrogen and heating the black powder to obtain ruthenium metal, then heating the black powder in a mixed atmosphere of oxygen and ozone to obtain RuO4 gas; absorbing the RuO4 gas with a sufficient amount of hydrochloric acid to obtain a H3RuCl6 solution; adding an excess oxidant to the H3RuCl6 solution to oxidize the H3RuCl6 into H2RuCl6; adding excess NH4Cl to the H2RuCl6 and then filtering, and washing the filter cake to obtain solid (NH4)2RuCl6; and reducing the solid (NH4)2RuCl6 by hydrogen to obtain ruthenium metal.
    Type: Grant
    Filed: September 5, 2014
    Date of Patent: September 12, 2017
    Assignee: WUHAN KAIDI ENGINEERING TECHNOLOGY RESEARCH INSTITUTE CO., LTD.
    Inventors: Bo Lai, Li Xu, Yiming Han, Qianqian Liu, Dechen Song