Patents by Inventor Douglas C Comrie
Douglas C Comrie 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).
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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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Publication number: 20160025337Abstract: 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: ApplicationFiled: October 7, 2015Publication date: January 28, 2016Inventor: 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
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Publication number: 20150096480Abstract: 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: December 9, 2014Publication date: April 9, 2015Inventor: Douglas C. Comrie
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Patent number: 8920158Abstract: 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 CI 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: January 24, 2014Date of Patent: December 30, 2014Assignee: NOx II, Ltd.Inventor: Douglas C. Comrie
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Publication number: 20140224158Abstract: 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: ApplicationFiled: April 16, 2014Publication date: August 14, 2014Applicant: NOx ll, Ltd.Inventor: Douglas C. Comrie
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Publication number: 20140141380Abstract: 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: January 24, 2014Publication date: May 22, 2014Applicant: NOx II, Ltd.Inventor: Douglas C. Comrie
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Patent number: 8703081Abstract: 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: September 25, 2013Date of Patent: April 22, 2014Assignee: NOx II, Ltd.Inventor: Douglas C. Comrie
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Publication number: 20140053760Abstract: 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: ApplicationFiled: November 4, 2013Publication date: February 27, 2014Applicant: NOx II, Ltd.Inventors: Douglas C. Comrie, Vincent A. Vellella
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Patent number: 8658115Abstract: 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: August 5, 2013Date of Patent: February 25, 2014Assignee: NOx II, Ltd.Inventor: Douglas C. Comrie
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Publication number: 20140020608Abstract: 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: ApplicationFiled: September 25, 2013Publication date: January 23, 2014Applicant: NOx II, Ltd.Inventor: Douglas C. COMRIE
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Publication number: 20130312646Abstract: 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: August 5, 2013Publication date: November 28, 2013Applicant: NOx II, Ltd.Inventor: Douglas C. Comrie
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Patent number: 8574324Abstract: A process for burning coal or other carbonaceous fuels captures sulfur and other undesirable compounds are captured and retained in non-reactive ceramic-like form after the combustion phase. The process involves addition of multiple element alkali powders and/or sorbents preferably containing oxidizing anions such as nitrates and nitrites, preferably based on calcium. In various embodiments, the remediation materials when applied in a complex powder and/or liquid containing multiple elements, result in higher sulfur capture than the materials would otherwise achieve on an individual basis. In a preferred embodiment, the sorbents contain elements that minimize or lower the melting point of the ash. This leads to lowered cohesiveness and toughness of the ash so that less ash builds up on the boiler and better heat transfer is obtained.Type: GrantFiled: April 8, 2005Date of Patent: November 5, 2013Assignee: NOx II, Ltd.Inventors: Douglas C. Comrie, Vincent A. Vellella
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Patent number: 8545778Abstract: 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: November 16, 2012Date of Patent: October 1, 2013Assignee: NOx II, Ltd.Inventor: Douglas C. Comrie
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Patent number: 8506916Abstract: The disclosure provides methods and systems for sequestering and/or reducing sulfur oxides, nitrogen oxides and/or carbon dioxide present in industrial effluent fluid streams. A solid particulate material comprising a slag component, a binder component (distinct from the slag component), and optionally water is formed and then contacted with the effluent fluid stream to reduce at least one of the sulfur oxides, nitrogen oxides, and/or carbon dioxide. The contacting of the effluent stream may occur in a packed bed reactor with the solid dry particulate material. Methods of reducing pollutants from exhaust generated by combustion sources, lime and/or cement kilns, iron and/or steel furnaces, and the like are provided.Type: GrantFiled: July 27, 2012Date of Patent: August 13, 2013Assignee: C-Quest Technologies LLCInventor: Douglas C. Comrie
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Patent number: 8501128Abstract: 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: June 22, 2012Date of Patent: August 6, 2013Inventor: Douglas C. Comrie
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Patent number: 8367025Abstract: The disclosure provides methods and systems for sequestering and/or reducing carbon dioxide present in an industrial effluent fluid stream containing carbon dioxide. A scrubbing material comprising a first component, a second component (distinct from the first component), and preferably water, is contacted with the effluent fluid stream. The first component comprises a source of calcium oxide and a source of alkali metal ions. The second component comprises a slag having one or more reactive silicate compounds. Methods of reducing carbon dioxide from exhaust generated by combustion sources, lime and/or cement kilns, iron and/or steel furnaces, and the like are provided. Carbon dioxide emission abatement systems are also disclosed. Methods of recycling industrial byproducts are further provided.Type: GrantFiled: January 23, 2012Date of Patent: February 5, 2013Assignee: C-Quest Technologies LLCInventor: Douglas C. Comrie
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Patent number: 8313323Abstract: 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: January 4, 2012Date of Patent: November 20, 2012Assignee: NOx II, Ltd.Inventor: Douglas C. Comrie