Patents Assigned to NOx II, Ltd.
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Patent number: 11732889Abstract: Sorbent components containing halogen, calcium, alumina, and silica are used in combination during coal combustion to produce environmental benefits. Sorbents such as calcium bromide are added to the coal ahead of combustion and other components are added into the flame or downstream of the flame, preferably at minimum temperatures to assure complete formation of the refractory structures that result in various advantages of the methods. When used together, the components reduce emissions of elemental and oxidized mercury; increase the level of Hg, As, Pb, and/or Cl in the coal ash; decrease the levels of leachable heavy metals (such as Hg) in the ash, preferably to levels below the detectable limits; and make a highly cementitious ash product.Type: GrantFiled: July 8, 2021Date of Patent: August 22, 2023Assignee: NOx II, Ltd.Inventor: Douglas C. Comrie
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Patent number: 11732888Abstract: Sorbent compositions containing calcium and iodine are added to coal to mitigate the release of mercury and/or other harmful elements into the environment during combustion of coal containing natural levels of mercury.Type: GrantFiled: March 26, 2021Date of Patent: August 22, 2023Assignee: NOX II, LTD.Inventor: Douglas C. Comrie
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Publication number: 20210332977Abstract: Sorbent components containing halogen, calcium, alumina, and silica are used in combination during coal combustion to produce environmental benefits. Sorbents such as calcium bromide are added to the coal ahead of combustion and other components are added into the flame or downstream of the flame, preferably at minimum temperatures to assure complete formation of the refractory structures that result in various advantages of the methods. When used together, the components reduce emissions of elemental and oxidized mercury; increase the level of Hg, As, Pb, and/or Cl in the coal ash; decrease the levels of leachable heavy metals (such as Hg) in the ash, preferably to levels below the detectable limits; and make a highly cementitious ash product.Type: ApplicationFiled: July 8, 2021Publication date: October 28, 2021Applicant: NOx II, Ltd.Inventor: Douglas C. COMRIE
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Publication number: 20210239318Abstract: Sorbent compositions containing calcium and iodine are added to coal to mitigate the release of mercury and/or other harmful elements into the environment during combustion of coal containing natural levels of mercury.Type: ApplicationFiled: March 26, 2021Publication date: August 5, 2021Applicant: NOx II, Ltd.Inventor: Douglas C. COMRIE
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Patent number: 11060723Abstract: Sorbent components containing halogen, calcium, alumina, and silica are used in combination during coal combustion to produce environmental benefits. Sorbents such as calcium bromide are added to the coal ahead of combustion and other components are added into the flame or downstream of the flame, preferably at minimum temperatures to assure complete formation of the refractory structures that result in various advantages of the methods. When used together, the components reduce emissions of elemental and oxidized mercury; increase the level of Hg, As, Pb, and/or Cl in the coal ash; decrease the levels of leachable heavy metals (such as Hg) in the ash, preferably to levels below the detectable limits; and make a highly cementitious ash product.Type: GrantFiled: April 23, 2020Date of Patent: July 13, 2021Assignee: NOx II, Ltd.Inventor: Douglas C. Comrie
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Patent number: 10962224Abstract: Sorbent compositions containing calcium and iodine are added to coal to mitigate the release of mercury and/or other harmful elements into the environment during combustion of coal containing natural levels of mercury.Type: GrantFiled: April 9, 2020Date of Patent: March 30, 2021Assignee: NOx II, Ltd.Inventor: Douglas C. Comrie
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Patent number: 10760026Abstract: Emissions of mercury, NOx, and/or SOx are reduced by enzyme treating coal before combustion, optionally with further treatment of the coal with certain non-bromine containing powder sorbents. y using the steps together, mercury can be reduced by 40% or more, and NOx by 20% or more. Advantageously, no bromine is introduced with the remediation steps.Type: GrantFiled: November 30, 2016Date of Patent: September 1, 2020Assignee: NOx II, Ltd.Inventor: Murray Abbott
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Publication number: 20200248902Abstract: Sorbent components containing halogen, calcium, alumina, and silica are used in combination during coal combustion to produce environmental benefits. Sorbents such as calcium bromide are added to the coal ahead of combustion and other components are added into the flame or downstream of the flame, preferably at minimum temperatures to assure complete formation of the refractory structures that result in various advantages of the methods. When used together, the components reduce emissions of elemental and oxidized mercury; increase the level of Hg, As, Pb, and/or Cl in the coal ash; decrease the levels of leachable heavy metals (such as Hg) in the ash, preferably to levels below the detectable limits; and make a highly cementitious ash product.Type: ApplicationFiled: April 23, 2020Publication date: August 6, 2020Applicant: NOx II, Ltd.Inventor: Douglas C. COMRIE
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Publication number: 20200240632Abstract: Sorbent compositions containing calcium and iodine are added to coal to mitigate the release of mercury and/or other harmful elements into the environment during combustion of coal containing natural levels of mercury.Type: ApplicationFiled: April 9, 2020Publication date: July 30, 2020Applicant: NOx II, Ltd.Inventor: Douglas C. COMRIE
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Patent number: 10670265Abstract: Sorbent components containing halogen, calcium, alumina, and silica are used in combination during coal combustion to produce environmental benefits. Sorbents such as calcium bromide are added to the coal ahead of combustion and other components are added into the flame or downstream of the flame, preferably at minimum temperatures to assure complete formation of the refractory structures that result in various advantages of the methods. When used together, the components reduce emissions of elemental and oxidized mercury; increase the level of Hg, As, Pb, and/or Cl in the coal ash; decrease the levels of leachable heavy metals (such as Hg) in the ash, preferably to levels below the detectable limits; and make a highly cementitious ash product.Type: GrantFiled: December 4, 2018Date of Patent: June 2, 2020Assignee: NOx II, Ltd.Inventor: Douglas C. Comrie
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Patent number: 10641483Abstract: Sorbent compositions containing calcium and iodine are added to coal to mitigate the release of mercury and/or other harmful elements into the environment during combustion of coal containing natural levels of mercury.Type: GrantFiled: November 30, 2018Date of Patent: May 5, 2020Assignee: NOx II, Ltd.Inventor: Douglas C. Comrie
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Patent number: 10612779Abstract: Sorbent compositions containing halogen and either nitrates or nitrites are added to coal to mitigate the release of mercury and/or other harmful elements into the environment during combustion of coal containing natural levels of mercury.Type: GrantFiled: April 4, 2018Date of Patent: April 7, 2020Assignee: NOx II, Ltd.Inventor: Douglas C. Comrie
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Patent number: 10359192Abstract: Sorbent components containing halogen, calcium, alumina, and silica are used in combination during coal combustion to produce environmental benefits. Sorbents such as calcium bromide are added to the coal ahead of combustion and other components are added into the flame or downstream of the flame, preferably at minimum temperatures to assure complete formation of the refractory structures that result in various advantages of the methods. When used together, the components reduce emissions of elemental and oxidized mercury; increase the level of Hg, As, Pb, and/or Cl in the coal ash; decrease the levels of leachable heavy metals (such as Hg) in the ash, preferably to levels below the detectable limits; and make a highly cementitious ash product.Type: GrantFiled: October 24, 2017Date of Patent: July 23, 2019Assignee: NOx II, Ltd.Inventor: Douglas C. Comrie
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Patent number: 9945557Abstract: Sorbent compositions containing iodine are added to coal to mitigate the release of mercury and/or other harmful elements into the environment during combustion of coal containing natural levels of mercury.Type: GrantFiled: June 27, 2017Date of Patent: April 17, 2018Assignee: NOx II, Ltd.Inventor: Douglas C. Comrie
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Patent number: 9822973Abstract: Sorbent components containing halogen, calcium, alumina, and silica are used in combination during coal combustion to produce environmental benefits. Sorbents such as calcium bromide are added to the coal ahead of combustion and other components are added into the flame or downstream of the flame, preferably at minimum temperatures to assure complete formation of the refractory structures that result in various advantages of the methods. When used together, the components reduce emissions of elemental and oxidized mercury; increase the level of Hg, As, Pb, and/or Cl in the coal ash; decrease the levels of leachable heavy metals (such as Hg) in the ash, preferably to levels below the detectable limits; and make a highly cementitious ash product.Type: GrantFiled: July 20, 2016Date of Patent: November 21, 2017Assignee: NOx II, Ltd.Inventor: Douglas C. Comrie
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Patent number: 9702554Abstract: Sorbent compositions containing iodine are added to coal to mitigate the release of mercury and/or other harmful elements into the environment during combustion of coal containing natural levels of mercury.Type: GrantFiled: October 7, 2015Date of Patent: July 11, 2017Assignee: NOx II, Ltd.Inventor: Douglas C. Comrie
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Publication number: 20160327265Abstract: Sorbent components containing halogen, calcium, alumina, and silica are used in combination during coal combustion to produce environmental benefits. Sorbents such as calcium bromide are added to the coal ahead of combustion and other components are added into the flame or downstream of the flame, preferably at minimum temperatures to assure complete formation of the refractory structures that result in various advantages of the methods. When used together, the components reduce emissions of elemental and oxidized mercury; increase the level of Hg, As, Pb, and/or Cl in the coal ash; decrease the levels of leachable heavy metals (such as Hg) in the ash, preferably to levels below the detectable limits; and make a highly cementitious ash product.Type: ApplicationFiled: July 20, 2016Publication date: November 10, 2016Applicant: NOx II, Ltd.Inventor: Douglas C. Comrie
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Patent number: 9416967Abstract: Sorbent components containing halogen, calcium, alumina, and silica are used in combination during coal combustion to produce environmental benefits. Sorbents such as calcium bromide are added to the coal ahead of combustion and other components are added into the flame or downstream of the flame, preferably at minimum temperatures to assure complete formation of the refractory structures that result in various advantages of the methods. When used together, the components reduce emissions of elemental and oxidized mercury; increase the level of Hg, As, Pb, and/or Cl in the coal ash; decrease the levels of leachable heavy metals (such as Hg) in the ash, preferably to levels below the detectable limits; and make a highly cementitious ash product.Type: GrantFiled: December 9, 2014Date of Patent: August 16, 2016Assignee: NOx II, Ltd.Inventor: Douglas C. Comrie
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Patent number: 9169453Abstract: Sorbent compositions containing halogen and calcium are added to coal to mitigate the release of sulfur and/or other harmful elements, including mercury, into the environment during combustion of coal containing natural levels of mercury.Type: GrantFiled: April 16, 2014Date of Patent: October 27, 2015Assignee: NOx II, LTD.Inventor: Douglas C. Comrie
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Patent number: 9133408Abstract: A method of reducing sulfur emissions by applying remediation materials in a powder sorbent onto coal and combusting the coal with the materials applied. The powder sorbent contain sources of silicon, aluminum, calcium, iron, and magnesium, and ash from combustion contains the captured sulfur.Type: GrantFiled: November 4, 2013Date of Patent: September 15, 2015Assignee: NOx II, Ltd.Inventors: Douglas C. Comrie, Vincent A. Vellella