Patents by Inventor Dingzhong Xie

Dingzhong Xie 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).

  • Patent number: 9993790
    Abstract: An isothermal carbon monoxide (CO) shift reactor having high CO conversion and the process technology comprises the outside pressure vessel; the catalyst unit; upper and lower tube sheets welded with water tubes and bottom tee joints; the said outside pressure vessel has seal heads at the upper and lower ends; the said vessel has a water chamber and a steam chamber at the upper section. The catalyst unit comprises the upper catalyst bed with water tubes. There is a central pipe that is located in the said vessel, of which the upper end is located in the upper catalyst bed while the lower end is located in the lower catalyst bed; the said bottom tee joint has an inlet for feed gas, outlet for reacted shift gas and inlet for steam-water mixture; the said central pipe is installed with spray nozzle for steam-water mixture; the said reactor is applicable for process technologies for feed and effluent gas having different CO contents.
    Type: Grant
    Filed: September 25, 2013
    Date of Patent: June 12, 2018
    Assignee: Hunan Anchun Advanced Technology Co., Ltd
    Inventor: Dingzhong Xie
  • Patent number: 9751773
    Abstract: In one embodiment, an ammonia synthesis system comprising, an ammonia synthesis reactor, a waste heat boiler, a supply water heat exchanger, a recycle gas heat exchanger, a water cooler, an ammonia chiller and refrigeration exchanger, a secondary ammonia chiller, an ammonia separator, a liquid ammonia tank, a recycle compressor and a start-up heater, and wherein, a process gas is heated in the recycle gas heat exchanger and enters the ammonia synthesis reactor and the waste heat boiler, a reacted gas stream exits from a bottom of the waste heat boiler and is cooled in the supply water heat exchanger, a gas stream enters the recycle gas heat exchanger, the water cooler, the ammonia chiller and refrigeration exchanger, the secondary ammonia chiller, and is cooled, the gas stream enters the ammonia separator to form a separate liquid ammonia and the separated liquid ammonia enters the liquid ammonia tank.
    Type: Grant
    Filed: February 7, 2017
    Date of Patent: September 5, 2017
    Assignee: Hunan Anchun Advanced Technology Co., Ltd.
    Inventor: Dingzhong Xie
  • Publication number: 20160200572
    Abstract: An isothermal carbon monoxide (CO) shift reactor having high CO conversion and the process technology comprises the outside pressure vessel; the catalyst unit; tipper and lower tube sheets welded with water tubes and bottom tee joints; the said outside pressure vessel has seal heads at the upper and lower ends; the said vessel has a water chamber and a steam chamber at the upper section. The catalyst unit comprises the upper catalyst bed with water tubes. There is a central pipe that is located in the said vessel, of which the upper end is located in the upper catalyst bed while the lower end is located in the lower catalyst bed; the said bottom tee joint has an inlet for feed gas, outlet for reacted shift gas and inlet for steam-water mixture; the said central pipe is installed with spray nozzle for steam-water mixture; the said reactor is applicable for process technologies for feed and effluent gas having different CO contents.
    Type: Application
    Filed: September 25, 2013
    Publication date: July 14, 2016
    Inventor: Dingzhong XIE
  • Patent number: 7947747
    Abstract: A joint process for preparing alcohol/ether mixtures, alcohol/hydrocarbon mixtures and synthesizing ammonia is disclosed. In particular, a process of converting CO and CO2 present in the feed gas of ammonia synthesis, comprising H2 and N2 as major components, into useful co-products is disclosed. The process is characterized in that the alcohol/ether forming reaction is firstly carried out by using a copper series catalyst, then the alcohol/hydrocarbon forming reaction is carried out by using an iron series catalyst, the individually formed alcohol/ether and alcohol/hydrocarbon products are separated by water cooling and condensing, and discharged into corresponding storage tanks, and the remaining gas, in which the amount of CO and CO2 is less than or equal to 10 ppm, is fed into the ammonia synthesis system.
    Type: Grant
    Filed: February 19, 2003
    Date of Patent: May 24, 2011
    Inventors: Dingzhong Xie, Fengyu Dai, Yong Feng, Chunyang Li
  • Publication number: 20070161716
    Abstract: A joint process for preparing alcohol/ether mixtures, alcohol/hydrocarbon mixtures and synthesizing ammonia is disclosed. In particular, a process of converting CO and CO2 present in the feed gas of ammonia synthesis, comprising H2 and N2 as major components, into useful co-products is disclosed. The process is characterized in that the alcohol/ether forming reaction is firstly carried out by using a copper series catalyst, then the alcohol/hydrocarbon forming reaction is carried out by using an iron series catalyst, the individually formed alcohol/ether and alcohol/hydrocarbon products are separated by water cooling and condensing, and discharged into corresponding storage tanks, and the remaining gas, in which the amount of CO and CO2 is less than or equal to 10 ppm, is fed into the ammonia synthesis system.
    Type: Application
    Filed: February 19, 2003
    Publication date: July 12, 2007
    Inventors: Dingzhong Xie, Fengyu Dai, Yong Feng, Chunyang Li
  • Patent number: 7186424
    Abstract: The present invention is a multifunctional nutrient supplement and a process for creating the supplement. The supplement comprises a mixture of lecithin, ginkgo biloba and wheat germ oil. The supplement is made with a five step formation process. The first step of the process uses CO2 supercritical extraction to remove cholesterol, glyceride and fatty acids from an egg yolk. Wheat germ oil is then obtained from dried wheat germ using CO2 supercritical extraction. Gingko biloba is then removed from ginkgo leaves using CO2 supercritical extraction. The egg yolk/lecithin from the first extraction is then combined with the wheat germ oil from the second extraction. Ethanol is then added to the mixture of lecithin and wheat germ oil and low temperature vacuum distilled to create a lecithin and wheat germ oil mixture. The ginkgo biloba extract is then added to the lecithin/wheat germ oil mixture to create the nutrient supplement.
    Type: Grant
    Filed: September 23, 2004
    Date of Patent: March 6, 2007
    Inventors: Ming Xie, Dingzhong Xie, Yong Feng, Hui Zeng
  • Publication number: 20050158398
    Abstract: The present invention is a multifunctional nutrient supplement and a process for creating the supplement. The supplement comprises a mixture of lecithin, ginkgo biloba and wheat germ oil. The supplement is made with a five step formation process. The first step of the process uses CO2 supercritical extraction to remove cholesterol, glyceride and fatty acids from an egg yolk. Wheat germ oil is then obtained from dried wheat germ using CO2 supercritical extraction. Gingko biloba is then removed from ginkgo leaves using CO2 supercritical extraction. The egg yolk/lecithin from the first extraction is then combined with the wheat germ oil from the second extraction. Ethanol is then added to the mixture of lecithin and wheat germ oil and low temperature vacuum distilled to create a lecithin and wheat germ oil mixture. The ginkgo biloba extract is then added to the lecithin/wheat germ oil mixture to create the nutrient supplement.
    Type: Application
    Filed: September 23, 2004
    Publication date: July 21, 2005
    Inventors: Ming Xie, Dingzhong Xie, Yong Feng, Hui Zeng