Patents by Inventor Hui Tong Chua

Hui Tong Chua 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: 10629933
    Abstract: A process for producing hydrogen from a hydrocarbon gas comprising contacting at elevated temperature the hydrocarbon gas with a catalyst to catalytically convert the hydrocarbon gas to hydrogen and solid carbon; wherein, the catalyst comprises one or both of the following: (a) a calcined Fe-containing catalyst; or (b) a bimetallic MxNiy-type catalyst supported on a substrate.
    Type: Grant
    Filed: November 30, 2015
    Date of Patent: April 21, 2020
    Assignee: HAZER GROUP LTD
    Inventors: Hui Tong Chua, Andrew Cornejo, Colin Llewellyn Raston, Lizhen Gao
  • Patent number: 10457568
    Abstract: The invention discloses a method of removing dissolved elements from a liquid. The method comprises a first heating step for heating the liquid using a first heat source, a plurality of distillation steps for purifying the liquid heated by the first heating step, each of the plurality of distillation steps comprising at least one evaporation step and at least one condensation step, and a second heating step, using a second heat source to heat a plurality of flashing chambers, each generating a volume of vapor; wherein the vapor from at least one of the plurality of flashing chambers of the second heating step is introduced into at least one of the plurality of distillation steps.
    Type: Grant
    Filed: April 3, 2015
    Date of Patent: October 29, 2019
    Assignee: MURDOCH UNIVERSITY, National Centre of Excellence in Desalination Australia
    Inventors: Bijan Rahimi, Hui Tong Chua, Alexander Christ
  • Publication number: 20180065850
    Abstract: In accordance with the present invention, there is provided a process for producing hydrogen and graphitic carbon from a hydrocarbon gas comprising: contacting at a temperature between 600° C. and 1000° C. the catalyst with the hydrocarbon gas to catalytically convert at least a portion of the hydrocarbon gas to hydrogen and graphitic carbon, wherein the catalyst is a low grade iron oxide.
    Type: Application
    Filed: March 31, 2016
    Publication date: March 8, 2018
    Inventors: Andrew CORNEJO, Hui Tong CHUA
  • Publication number: 20170029290
    Abstract: The invention discloses a method of removing dissolved elements from a liquid. The method comprises a first heating step for heating the liquid using a first heat source, a plurality of distillation steps for purifying the liquid heated by the first heating step, each of the plurality of distillation steps comprising at least one evaporation step and at least one condensation step, and a second heating step, using a second heat source to heat a plurality of flashing chambers, each generating a volume of vapor; wherein the vapor from at least one of the plurality of flashing chambers of the second heating step is introduced into at least one of the plurality of distillation steps.
    Type: Application
    Filed: April 3, 2015
    Publication date: February 2, 2017
    Applicant: Murdoch University
    Inventors: Bijan RAHIMI, Hui Tong CHUA, Alexander CHRIST
  • Patent number: 9365438
    Abstract: There is provided an apparatus 2 for desalinating non-potable water. The apparatus has a first vapor producing module 5 configured to receive a heated working fluid for producing vapor from a volume of non-potable water for driving at least one first distillation module 10 for producing condensate 12. The apparatus also includes a second vapor producing module 14 configured to receive working fluid from the first vapor producing module 5 for producing additional vapor from a further volume of non-potable water 8?.
    Type: Grant
    Filed: June 24, 2011
    Date of Patent: June 14, 2016
    Assignee: The University of Western Australia
    Inventors: Hui Tong Chua, Xiaolin Wang, Klaus Regenauer-Lieb
  • Publication number: 20160156051
    Abstract: A process for producing hydrogen from a hydrocarbon gas comprising contacting at elevated temperature the hydrocarbon gas with a catalyst to catalytically convert the hydrocarbon gas to hydrogen and solid carbon; wherein, the catalyst comprises one or both of the following: (a) a calcined Fe-containing catalyst; or (b) a bimetallic MxNiy-type catalyst supported on a substrate.
    Type: Application
    Filed: November 30, 2015
    Publication date: June 2, 2016
    Inventors: Hui Tong Chua, Andrew Cornejo, Colin Llewellyn Raston, Lizhen Gao
  • Publication number: 20130153398
    Abstract: There is provided an apparatus 2 for desalinating non-potable water. The apparatus comprises a first vapour producing module 5 configured to receive a heated working fluid for producing vapour from a volume of non-potable water for driving at least one first distillation module 10 for producing condensate 12. The apparatus further comprises a second vapour producing module 14 configured to receive working fluid from the first vapour producing module 5 for producing additional vapour from a further volume of non-potable water 8?.
    Type: Application
    Filed: June 24, 2011
    Publication date: June 20, 2013
    Inventors: Hui Tong Chua, Xiaolin Wang, Klaus Regenauer-Lieb
  • Publication number: 20120258374
    Abstract: A process for producing hydrogen from a hydrocarbon gas comprising contacting at elevated temperature the hydrocarbon gas with a catalyst to catalytically convert the hydrocarbon gas to hydrogen and solid carbon; wherein, the catalyst comprises one or both of the following: (a) a calcined Fe-containing catalyst; or (b) a bimetallic MxNiy-type catalyst supported on a substrate.
    Type: Application
    Filed: September 9, 2010
    Publication date: October 11, 2012
    Applicant: THE UNIVERSITY WESTERN AUSTRALIA
    Inventors: Colin Raston, Hui Tong Chua, Andrew Cornejo, Lizhen Gao
  • Patent number: 7230719
    Abstract: The present invention provides a hybrid optical and interferometric atomic force microscope system (40) for monitoring a cantilever probe (46). A light source (42) provides a light beam which is focussed on the back of the cantilever probe (46). The light reflected off the probe is split into two beams of different path lengths and are recombined to form an interference beam (58). This interference beam (58) is passed through a grating (102) having substantially the same period and orientation as the interference beam pattern. The light transmitted through the grating (102) illuminates a photodetector (122) to give a signal according to the intensity of the light falling on the photodetector. The photodetector output signal is sent to a positioning system (126), which in turn gives a signal to the piezoelectric system (54) so that the probe (46) follows the sample (50) surface. This signal is integrated as a function of position across the scanned area to represent a characteristic of the sample surface.
    Type: Grant
    Filed: December 2, 2003
    Date of Patent: June 12, 2007
    Assignee: National University of Singapore
    Inventors: Tuck Wah Ng, Hui Tong Chua, Osami Sasaki
  • Publication number: 20040254619
    Abstract: An apparatus and method for non-imaging optical systems to couple incoherent light from a source such as high-brightness lamps into optical fibers, and to deliver the light into the human body for photothermal and/or photochemical surgery. The incoherent light radiated from the light source is concentrated with a non-imaging light concentrator and the light is delivered to a body tissue for photothermal and/or photochemical medical treatment. The concentrator captures nearly the light source's full radiative output, and concentrates the collected radiation back to power densities close to the power densities of the hot plasma regions at the core of the light source. The concentrator couples the light into a photonic conduit such as optical fibers, and the photonic conduit delivers the concentrated intense light to surgical applications including contact (interstitial) procedures and non-contact treatments (within the internal body cavities as well as the surfaces of organs), and inside the body.
    Type: Application
    Filed: February 2, 2004
    Publication date: December 16, 2004
    Inventors: Daniel Feuermann, Jeffrey M. Gordon, Harald Ries, Kim Choon Ng, Hui Tong Chua, Michael Altura
  • Patent number: 6490875
    Abstract: A regenerative adsorption process and a multi-reactor regenerative adsorption chiller assembly including a condenser adapted to receive a coolant from a source; an evaporator connected to the condenser to provide a refrigerant circuit; a plurality of reactors, each being able to operate in adsorption and desorption modes and having a coolant inlet to directly or indirectly receive coolant when operating in adsorption mode before, after or simultaneous with the condenser, and a waste heat inlet for directly or indirectly receiving waste heat from a waste heat source when operating in desorption mode; and control means for controlling said plurality of reactors such that each reactor alternately operates in adsorption and desorption modes for substantially identical time intervals, and such that each reactor has an equal chance of being the first reactor to receive the coolant when operating in adsorption mode, and the waste heat from the waste heat source when operating in desorption mode.
    Type: Grant
    Filed: June 8, 2001
    Date of Patent: December 10, 2002
    Assignee: The National University of Singapore
    Inventors: Hui Tong Chua, Kim Choon Ng, Abdul Malek, Takao Kashiwagi, Atsushi Akisawa, Bidyut Baran Saha
  • Patent number: 6434955
    Abstract: A novel modular and miniature chiller is proposed that symbiotically combines absorption and thermoelectric cooling devices. The seemingly low efficiency of each cycle individually is overcome by an amalgamation with the other. This electro-adsorption chiller incorporates solely existing technologies. It can attain large cooling densities at high efficiency, yet is free of moving parts and comprises harmless materials. The governing physical processes are primarily surface rather than bulk effects, or involve electron rather than fluid flow. This insensitivity to scale creates promising applications in areas ranging from cooling personal computers and other micro-electronic appliances, to automotive and room air-conditioning.
    Type: Grant
    Filed: August 7, 2001
    Date of Patent: August 20, 2002
    Assignee: The National University of Singapore
    Inventors: Kim Choon Ng, Jeffrey M. Gordon, Hui Tong Chua, Anutosh Chakraborty
  • Publication number: 20020053217
    Abstract: A regenerative adsorption process and a multi-reactor regenerative adsorption chiller assembly including a condenser adapted to receive a coolant from a source; an evaporator connected to the condenser to provide a refrigerant circuit; a plurality of reactors, each being able to operate in adsorption and desorption modes and having a coolant inlet to directly or indirectly receive coolant when operating in adsorption mode before, after or simultaneous with the condenser, and a waste heat inlet for directly or indirectly receiving waste heat from a waste heat source when operating in desorption mode; and control means for controlling said plurality of reactors such that each reactor alternately operates in adsorption and desorption modes for substantially identical time intervals, and such that each reactor has an equal chance of being the first reactor to receive the coolant when operating in adsorption mode, and the waste heat from the waste heat source when operating in desorption mode.
    Type: Application
    Filed: June 8, 2001
    Publication date: May 9, 2002
    Inventors: Hui Tong Chua, Kim Choon Ng, Abdul Malek, Takao Kashiwagi, Atsushi Akisawa, Bidyut Baran Saha