Patents Assigned to Ecospec Global Technology Pte. Ltd.
  • Patent number: 10227243
    Abstract: The present invention provides a system for prevention of adhesion of organisms in water to a substrate in contact with the water, wherein the substrate and the water flowing around the substrate form together a treated region, comprising a generator for producing electromagnetic wave having a time varying frequency, in electrical connection with a first excitation site of the treated region and with an avalanche current suppressor having its another terminal connected with a second excitation site of the treated region. A selected voltage is applied to the generator such that the generator is triggered to produce the electromagnetic wave capable of inducing an avalanche current to shock or kill the organisms. The invention also provides a method for prevention of adhesion of organisms in water to a substrate in contact with the water.
    Type: Grant
    Filed: August 28, 2012
    Date of Patent: March 12, 2019
    Assignee: ECOSPEC GLOBAL TECHNOLOGY PTE. LTD
    Inventor: Hwee Hong Chew
  • Patent number: 9689079
    Abstract: The present invention provides a permanent and cost-effective composite electrode for electrolytically producing alkaline water, comprising an electrode core made of steel, a filler densely packed around the electrode core, said filler capable of creating a mildly aqueous and alkaline environment to motivate formation of a layer of magnetite over a surface of the electrode core, and a housing enclosing the filler, said housing having a pore size selected such that very low permeation of gas and liquid takes place. The invention also provides an apparatus comprising the composite electrode, and the use of the alkaline water produced by the apparatus of the invention. According to the invention, no additional undesired side products, such as toxic chlorine gas and other pollutants, are produced and discharged to the environment.
    Type: Grant
    Filed: December 8, 2011
    Date of Patent: June 27, 2017
    Assignee: ECOSPEC GLOBAL TECHNOLOGY PTE LTD.
    Inventor: Hwee Hong Chew
  • Patent number: 9469539
    Abstract: The invention relates to a method for carbonizing carbon dioxide, comprising the step of contacting carbon dioxide with a solution of chelating agent or a solution of substance which exhibits chelating properties under dynamic conditions to generate oxygen and carbon particles. The method of the invention is significantly more economical and convenient and do not cause harm to the environments. The invention also exhibits a novel and unique feature that elemental carbon and oxygen are generated as final products under normal room temperature and atmosphere, and the carbon can be recovered as an energy source.
    Type: Grant
    Filed: September 2, 2011
    Date of Patent: October 18, 2016
    Assignee: ECOSPEC GLOBAL TECHNOLOGY PTE LTD.
    Inventor: Hwee Hong Chew
  • Publication number: 20150232352
    Abstract: The present invention provides a system for prevention of adhesion of organisms in water to a substrate in contact with the water, wherein the substrate and the water flowing around the substrate form together a treated region, comprising a generator for producing electromagnetic wave having a time varying frequency, in electrical connection with a first excitation site of the treated region and with an avalanche current suppressor having its another terminal connected with a second excitation site of the treated region. A selected voltage is applied to the generator such that the generator is triggered to produce the electromagnetic wave capable of inducing an avalanche current to shock or kill the organisms. The invention also provides a method for prevention of adhesion of organisms in water to a substrate in contact with the water.
    Type: Application
    Filed: August 28, 2012
    Publication date: August 20, 2015
    Applicant: ECOSPEC GLOBAL TECHNOLOGY PTE. LTD
    Inventor: Hwee Hong Chew
  • Publication number: 20150218712
    Abstract: The present invention provides a system and a method for providing corrosion protection of a metallic structure using time varying electromagnetic wave. The system comprises: a generator for generating electromagnetic wave having a time varying frequency, said generator having at least two output terminals in electrical connection respectively with first and second excitation sites positioned in a spaced manner on the metallic structure, allowing for subjecting the metallic structure to the electromagnetic wave; and an electric power source connected to the generator for applying a driving voltage to the generator to drive the generation of the electromagnetic wave; wherein the driving voltage and/or the frequency of the electromagnetic wave are selected such that the metallic structure is energized to form in-situ a passive oxidized species of the metal on a surface of the metallic structure, which species is insusceptible to corrosion.
    Type: Application
    Filed: October 11, 2012
    Publication date: August 6, 2015
    Applicant: ECOSPEC GLOBAL TECHNOLOGY PTE LTD
    Inventor: Hwee Hong Chew
  • Publication number: 20140290482
    Abstract: The present invention provides a permanent and cost-effective composite electrode for electrolytically producing alkaline water, comprising an electrode core made of steel, a filler densely packed around the electrode core, said filler capable of creating a mildly aqueous and alkaline environment to motivate formation of a layer of magnetite over a surface of the electrode core, and a housing enclosing the filler, said housing having a pore size selected such that very low permeation of gas and liquid takes place. The invention also provides an apparatus comprising the composite electrode, and the use of the alkaline water produced by the apparatus of the invention. According to the invention, no additional undesired side products, such as toxic chlorine gas and other pollutants, are produced and discharged to the environment.
    Type: Application
    Filed: December 8, 2011
    Publication date: October 2, 2014
    Applicant: ECOSPEC GLOBAL TECHNOLOGY PTE LTD
    Inventor: Hwee Hong Chew
  • Publication number: 20140255290
    Abstract: The invention relates to a method for carbonizing carbon dioxide, comprising the step of contacting carbon dioxide with a solution of chelating agent or a solution of substance which exhibits chelating properties under dynamic conditions to generate oxygen and carbon particles. The method of the invention is significantly more economical and convenient and do not cause harm to the environments. The invention also exhibits a novel and unique feature that elemental carbon and oxygen are generated as final products under normal room temperature and atmosphere, and the carbon can be recovered as an energy source.
    Type: Application
    Filed: September 2, 2011
    Publication date: September 11, 2014
    Applicant: ECOSPEC GLOBAL TECHNOLOGY PTE LTD.
    Inventor: Hwee Hong Chew
  • Patent number: 8529855
    Abstract: A method for removing gas components SOx, NOx, and CO2 from a flue gas, comprises the steps of contacting the flue gas successively with first, second and third liquid mediums each of which provides a plasma containing reactive electrons or ions in an amount such that the gas molecules SOx, NOx, and CO2 are successively subjected to impingement of the electrons or ions in the respective plasma to enable the dissociation of the gas molecules SOx, NOx, and CO2 so as to remove SOx, NOx, and CO2 from the flue gas. A system for removing gas components SOx, NOx, and CO2 from a flue gas is also disclosed.
    Type: Grant
    Filed: May 26, 2010
    Date of Patent: September 10, 2013
    Assignee: Ecospec Global Technology Pte Ltd.
    Inventor: Hwee Hong Chew
  • Publication number: 20130052111
    Abstract: The invention relates to a method for removing gas components SOX, NOx, and CO2 from a flue gas, comprising the steps of: a) contacting the flue gas with a first liquid medium which provides a first plasma containing reactive electrons or ions in an amount such that the gas molecules SOX are subject to impingement of the electrons or ions in the first plasma to enable the dissociation of the gas molecules SOX so as to remove SOx from the flue gas; b) contacting the flue gas obtained from step a) with a second liquid medium which provides a second plasma containing reactive electrons or ions in an amount such that the gas molecules CO2 are subject to impingement of the electrons or ions in the second plasma to enable the dissociation of the gas molecules CO2 so as to remove CO2 from the flue gas; and c) contacting the flue gas obtained from step b) with a third liquid medium which provides a third plasma containing reactive electrons or ions in an amount such that the gas molecules NOx are subject to impingeme
    Type: Application
    Filed: May 26, 2010
    Publication date: February 28, 2013
    Applicant: ECOSPEC GLOBAL TECHNOLOGY PTE LTD.
    Inventor: Hwee Hong Chew
  • Publication number: 20120205246
    Abstract: A system and a method for prevention of adhesion of marine organisms to a substrate contacted with seawater are provided. The system comprises a generator (120, 220) for producing an electrical signal (150) operating in desirable frequencies in which the marine organisms can be chased or killed, said generator (120, 220) having at least two output connectors (122, 124, 222, 224), means for oscillating and propagating the electrical signal (150) along a surface of the substrate, said means being adapted to make electrical connection with the at least two output connectors (122, 124, 222, 224) of the generator (120, 220) and being submerged in seawater, and an electric power source (110, 210) connected to the generator (122, 124, 222, 224) for applying a selected voltage to the generator (122, 124, 222, 224) to produce the electrical signal (150).
    Type: Application
    Filed: September 8, 2009
    Publication date: August 16, 2012
    Applicant: ECOSPEC GLOBAL TECHNOLOGY PTE. LTD
    Inventor: Hwee Hong Chew
  • Patent number: 8241597
    Abstract: A system and method for removing pollutants and greenhouse gases SO2, NO2, and CO2 from a flue gas stream, includes: a) contacting natural seawater with a flue gas for a given period of time to remove SO2 from the flue gas; b) contacting treated alkaline water to the flue gas to remove CO2 and NOx from the flue gas and generate oxygen and carbon particles; and c) collecting or emitting the flue gas after step b). The method and the system of the invention are significantly more economical and convenient and do not cause harm to the environments. The invention also exhibits a novel and unique feature that elemental carbon and oxygen are generated as final products and can be recovered as an energy source.
    Type: Grant
    Filed: June 3, 2009
    Date of Patent: August 14, 2012
    Assignee: Ecospec Global Technology Pte. Ltd.
    Inventor: Hwee Hong Chew