Patents Assigned to Synthesis Energy Systems, Inc.
  • Patent number: 9527026
    Abstract: A fluidized bed reactor including a reaction vessel, which contains a conical gas distribution grid, a first venturi connected to the bottom of the gas distribution grid, and a classifier connected to the bottom of the first venturi; a fine ash particle collection system; and a fine ash particle conveyor system. Also disclosed is a method for recycling fine ash particles, the method including separating the fine ash particles from an exit gas stream, and using a transport gas to deliver the fine ash particles into the classifier.
    Type: Grant
    Filed: March 14, 2014
    Date of Patent: December 27, 2016
    Assignee: Synthesis Energy Systems, Inc.
    Inventor: John Winter
  • Patent number: 9126133
    Abstract: A dust removal method using baghouse filter to process raw syngas from fluidized bed coal gasifier, wherein temperature in the baghouse (300) is maintained at 180° C.˜250° C., pressure difference between the gas inlet (130) of the baghouse (300) and the gas outlet (110) of the baghouse (300) is controlled at 1000-5000Pa, the raw syngas from the fluidized bed coal gasifier enters the gas inlet under the pressure of 0.2-3.0Mpa. The present method effectively solves the technical problems of condensation and baghouse block due to high steam and ash content in the raw syngas from the fluidized bed coal gasifier and the present method is also applicable to remove dusts from the raw syngas produced by the fluidized bed coal gasifier under the conditions of high water-gas ratio (the water-gas ratio is up to 37%), high dust content(15-100g/Nm3 dusts) and 0.2-3.0Mpa pressure. The present invention also discloses a baghouse dust collector and a dense phase pneumatic conveying apparatus for the method.
    Type: Grant
    Filed: May 26, 2009
    Date of Patent: September 8, 2015
    Assignee: Synthesis Energy Systems, Inc.
    Inventors: Minghai Gu, Songliang Sun, Guangliang Luo
  • Patent number: 9103234
    Abstract: An HRSG for fluidized bed gasification comprises a high temperature evaporator (200), a superheater (300), a low temperature evaporator (400), and an economizer (500) connected in series. The superheater (300), the low temperature evaporator (400) and the economizer (500) have a water-tube structure, and the high temperature evaporator (200) has a fire-tube structure. The HRSG of the present invention allows efficient heat recovery from the raw syngas of a fluidized bed coal gasifier, while avoids or reduces the corrosion of and damage to the components of the HRSG caused by high-speed ash particles in the syngas.
    Type: Grant
    Filed: May 25, 2009
    Date of Patent: August 11, 2015
    Assignee: Synthesis Energy Systems, Inc.
    Inventors: Minghai Gu, Songliang Sun, Guangliang Luo
  • Patent number: 9039810
    Abstract: A cyclone system for a gasifier having two or more cyclones arranged in series sharing a combined loop seal and dipleg is disclosed. Also disclosed is a method for capturing and recycling fines with the cyclone system.
    Type: Grant
    Filed: June 25, 2012
    Date of Patent: May 26, 2015
    Assignee: Synthesis Energy Systems, Inc.
    Inventors: Francis Lau, Tsung-Yao Robert Sheng
  • Patent number: 8968431
    Abstract: An apparatus for cooling hot ash particles discharged from a pressurized fluidized bed reactor, comprises a vessel, a solids inlet, a plurality of cooling pipes housed inside the vessel, and a solids outlet, wherein the cooling pipes are connected to a header located outside the vessel and are arranged such that the solids can flow between the cooling pipes under gravity without being blocked by the header, and wherein cooling liquid flows from the header via a flow path through the pipes, and exchanges heat with the hot ash particles through walls of the cooling pipes. The apparatus may further comprises a computerized evaporative cooling device comprising water nozzles and a thermocouple that measures the temperature inside the vessel. Also provided is a fluidized bed reactor comprising the cooling device.
    Type: Grant
    Filed: June 5, 2008
    Date of Patent: March 3, 2015
    Assignee: Synthesis Energy Systems, Inc.
    Inventor: Guohai Liu
  • Patent number: 8920736
    Abstract: A loop seal for a fluidized bed reactor comprising a vertical downcomer segment connected to a dipleg for receiving solids particles from the dipleg, a horizontal segment downstream of the downcomer, a riser segment downstream of the horizontal segment, and a downwardly inclined segment downstream of the riser, whereby the solids are entrained to the fluidized bed reactor. An eductor is added to the angled leg to induce the underflow gas from the cyclone; one of the preferred motive fluids to the eductor is the fines from fuel preparation and the carrying gas for the fines. Also provided are a fluidized bed reactor comprising the loop seal, and a method for producing syngas from coal and steam using the same.
    Type: Grant
    Filed: June 5, 2010
    Date of Patent: December 30, 2014
    Assignee: Synthesis Energy Systems, Inc.
    Inventor: Guohai Liu
  • Patent number: 8906121
    Abstract: A fluidized bed apparatus having a plurality of inlet holes for the introduction of fluidizing medium into a fluidized bed, wherein at least two, and preferably more, of the inlet holes have different cross sectional areas.
    Type: Grant
    Filed: September 12, 2007
    Date of Patent: December 9, 2014
    Assignee: Synthesis Energy Systems, Inc.
    Inventors: David H. Nicoll, Timothy E. Vail
  • Publication number: 20130312328
    Abstract: Method and apparatus for recycling fine ash particles for a multiphase chemical reactor (MCR), wherein coal is partially oxidized in the MCR to produce an exit gas stream in which fine ash particles are entrained, and wherein the MCR comprises a high temperature region with a temperature at or above a fusion temperature of the fine ash particles, wherein substantially all of the fine ash particles from the exit gas stream are returned to the high temperature region, to achieve improved carbon conversion and reduction in fly ash quantity.
    Type: Application
    Filed: November 29, 2011
    Publication date: November 28, 2013
    Applicant: Synthesis Energy Systems, Inc.
    Inventors: Chunfa Xu, Long Wu
  • Publication number: 20120138861
    Abstract: A loop seal for a fluidized bed reactor comprising a vertical downcomer segment connected to a dipleg for receiving solids particles from the dipleg, a horizontal segment downstream of the downcomer, a riser segment downstream of the horizontal segment, and a downwardly inclined segment downstream of the riser, whereby the solids are entrained to the fluidized bed reactor. An eductor is added to the angled leg to induce the underflow gas from the cyclone; one of the preferred motive fluids to the eductor is the fines from fuel preparation and the carrying gas for the fines. Also provided are a fluidized bed reactor comprising the loop seal, and a method for producing syngas from coal and steam using the same.
    Type: Application
    Filed: June 5, 2010
    Publication date: June 7, 2012
    Applicant: Synthesis Energy Systems, Inc.
    Inventor: Guohai Liu
  • Publication number: 20110283703
    Abstract: A HRSG for fluidized bed gasification comprises a high temperature evaporator (200), a superheater (300), a low temperature evaporator (400), and an economizer (500) in series. The superheater (300), the low temperature evaporator (400) and the economizer (500) have water-tube structure, and the high temperature evaporator (200) has fire-tube structure.
    Type: Application
    Filed: May 25, 2009
    Publication date: November 24, 2011
    Applicant: Synthesis Energy Systems, Inc.
    Inventors: Minghai Gu, Songliang Sun, Guangliang Luo
  • Patent number: 7879294
    Abstract: A fine solids recycle apparatus for a fluidized bed reactor comprises an eductor connected to a dipleg extending from a cyclone connected to the reactor, wherein the fine solids particles are removed from the dipleg, mixed with an eductor gas to form an eductor gas-fine solids particles mixture, which allows the return of the fine solids particles to the fluidized bed region, whereby the fine solids is further reacted in the fluidized region to improve reaction efficiency.
    Type: Grant
    Filed: April 29, 2008
    Date of Patent: February 1, 2011
    Assignee: Synthesis Energy Systems, Inc.
    Inventor: Gouhai Liu