Patents by Inventor Brian F. Woodfield
Brian F. Woodfield 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: 20160236176Abstract: The present invention relates to a method for making high surface area and large pore volume thermally stable silica-doped alumina (aluminum oxide) catalyst support and ceramic materials. The ability of the silica-alumina to withstand high temperatures in presence or absence of water and prevent sintering allows it to maintain good activity over a long period of time in catalytic reactions. The method of preparing such materials includes adding organic silicon reagents to an organic aluminum salt such as an alkoxide in a controlled quantity as a doping agent in a solid state, solvent deficient reaction followed by calcination. Alternatively, the organic silicon compound may be added after calcination of the alumina, followed by another calcination step. This method is inexpensive and simple. The alumina catalyst support material prepared by the subject method maintains high pore volumes, pore diameters and surface areas at very high temperatures and in the presence of steam.Type: ApplicationFiled: February 29, 2016Publication date: August 18, 2016Applicant: Brigham Young UniversityInventors: Maryam Khosravi-Mardkhe, Brian F. Woodfield, Calvin H. Bartholomew, Baiyu Huang
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Patent number: 9334173Abstract: Methods for making high-surface area, high-porosity, stable metal oxides, such as, but not limited to materials used as adsorbents and catalyst supports include (i) forming a solvent deficient precursor mixture from a metal salt and a base and reacting the metal ions and base ions in the solvent deficient precursor mixture to form an intermediate hydroxide product (e.g., metal hydroxide or metal oxide hydroxide), (ii) causing the intermediate hydroxide to form nanoparticles (e.g., by heating), and (iii) calcining the intermediate nanoparticles to sinter the nanoparticles together and yield a highly porous, stable metal oxide aggregate having a pore structure.Type: GrantFiled: March 22, 2011Date of Patent: May 10, 2016Assignee: Brigham Young UniversityInventors: Calvin H. Bartholomew, Brian F. Woodfield, Baiyu Huang, Rebecca Elizabeth Olsen, Lynn Astle
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Patent number: 9289750Abstract: The present invention relates to a method for making high surface area and large pore volume thermally stable silica-doped alumina (aluminum oxide) catalyst support and ceramic materials. The ability of the silica-alumina to withstand high temperatures in presence or absence of water and prevent sintering allows it to maintain good activity over a long period of time in catalytic reactions. The method of preparing such materials includes adding organic silicon reagents to an organic aluminum salt such as an alkoxide in a controlled quantity as a doping agent in a solid state, solvent deficient reaction followed by calcination. Alternatively, the organic silicon compound may be added after calcination of the alumina, followed by another calcination step. This method is inexpensive and simple. The alumina catalyst support material prepared by the subject method maintains high pore volumes, pore diameters and surface areas at very high temperatures and in the presence of steam.Type: GrantFiled: March 7, 2014Date of Patent: March 22, 2016Assignee: Brigham Young UniversityInventors: Maryam Khosravi-Mardkhe, Brian F. Woodfield, Calvin H. Bartholomew, Baiyu Huang
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Patent number: 9114378Abstract: A method of making iron and cobalt pre-catalysts and catalysts in activated, finished form suitable for use in Fischer-Tropsch synthesis. The pre-catalysts are prepared by mixing an iron or cobalt salt, a base, and a metal oxide textural promoter or support. The reaction is carried out in a solvent deficient environment. The resulting product is then calcined at temperatures of about 300-500° C. to produce a metal oxide. The catalysts are prepared by reducing the metal oxide in the presence of hydrogen at temperatures of about 300-500° C. and carbiding the reduced metal in the case of iron.Type: GrantFiled: March 15, 2013Date of Patent: August 25, 2015Assignee: Brigham Young UniversityInventors: Brian F. Woodfield, Calvin H. Bartholomew, Kyle Brunner, William Hecker, Xuchu Ma, Fen Xu, Lynn Astle
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Patent number: 9079164Abstract: Methods are described for making a texturized catalyst. The textural promoter may be a high-surface area, high-porosity, stable metal oxide support. The catalyst is manufactured by reacting catalyst precursor materials and support materials in a single, solvent deficient reaction to form a catalyst. The catalyst may be particles or a coating or partial coating of a support surface.Type: GrantFiled: March 15, 2013Date of Patent: July 14, 2015Assignee: Brigham Young UniversityInventors: Brian F. Woodfield, Stacey Smith, David Selck, Calvin H. Bartholomew, Xuchu Ma, Fen Xu, Rebecca E. Olsen, Lynn Astle
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Publication number: 20140256543Abstract: The present invention relates to a method for making high surface area and large pore volume thermally stable silica-doped alumina (aluminum oxide) catalyst support and ceramic materials. The ability of the silica-alumina to withstand high temperatures in presence or absence of water and prevent sintering allows it to maintain good activity over a long period of time in catalytic reactions. The method of preparing such materials includes adding organic silicon reagents to an organic aluminum salt such as an alkoxide in a controlled quantity as a doping agent in a solid state, solvent deficient reaction followed by calcination. Alternatively, the organic silicon compound may be added after calcination of the alumina, followed by another calcination step. This method is inexpensive and simple. The alumina catalyst support material prepared by the subject method maintains high pore volumes, pore diameters and surface areas at very high temperatures and in the presence of steam.Type: ApplicationFiled: March 7, 2014Publication date: September 11, 2014Applicant: Brigham Young UniversityInventors: Maryam Khosravi-Mardkhe, Brian F. Woodfield, Calvin H. Bartholomew, Baiyu Huang
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Publication number: 20130274093Abstract: A method of making iron and cobalt pre-catalysts and catalysts in activated, finished form suitable for use in Fischer-Tropsch synthesis. The pre-catalysts are prepared by mixing an iron or cobalt salt, a base, and a metal oxide textural promoter or support. The reaction is carried out in a solvent deficient environment. The resulting product is then calcined at temperatures of about 300-500° C. to produce a metal oxide. The catalysts are prepared by reducing the metal oxide in the presence of hydrogen at temperatures of about 300-500° C. and carbiding the reduced metal in the case of iron.Type: ApplicationFiled: March 15, 2013Publication date: October 17, 2013Inventors: Brian F. Woodfield, Calvin H. Bartholomew, Kyle Brunner, William Hecker, Xuchu Ma, Fen Xu, Lynn Astle
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Publication number: 20130267411Abstract: Methods are described for making a texturized catalyst. The textural promoter may be a high-surface area, high-porosity, stable metal oxide support. The catalyst is manufactured by reacting catalyst precursor materials and support materials in a single, solvent deficient reaction to form a catalyst. The catalyst may be particles or a coating or partial coating of a support surface.Type: ApplicationFiled: March 15, 2013Publication date: October 10, 2013Applicant: BRIGHAM YOUNG UNIVERSITY,Inventors: Brian F. Woodfield, Stacey Smith, David Selck, Calvin H. Bartholomew, Xuchu Ma, Fen Xu, Rebecca E. Olsen, Lynn Astle
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Patent number: 8211388Abstract: In preferred embodiments, metal nanoparticles, mixed-metal (alloy) nanoparticles, metal oxide nanoparticles and mixed-metal oxide nanoparticles are provided. According to embodiments, the nanoparticles may possess narrow size distributions and high purities. In certain preferred embodiments, methods of preparing metal nanoparticles, mixed-metal nanoparticles, metal oxide nanoparticles and mixed-metal nanoparticles are provided. These methods may provide tight control of particle size, size distribution, and oxidation state. Other preferred embodiments relate to a precursor material that may be used to form nanoparticles. In addition, products prepared from such nanoparticles are disclosed.Type: GrantFiled: February 16, 2007Date of Patent: July 3, 2012Assignee: Brigham Young UniversityInventors: Brian F. Woodfield, Shengfeng Liu, Juliana Boerio-Goates, Qingyuan Liu, Stacey Janel Smith
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Publication number: 20110257008Abstract: Methods for making high-surface area, high-porosity, stable metal oxides, such as, but not limited to materials used as adsorbents and catalyst supports include (i) forming a solvent deficient precursor mixture from a metal salt and a base and reacting the metal ions and base ions in the solvent deficient precursor mixture to form an intermediate hydroxide product (e.g., metal hydroxide or metal oxide hydroxide), (ii) causing the intermediate hydroxide to form nanoparticles (e.g., by heating), and (iii) calcining the intermediate nanoparticles to sinter the nanoparticles together and yield a highly porous, stable metal oxide aggregate having a pore structure.Type: ApplicationFiled: March 22, 2011Publication date: October 20, 2011Applicant: BRIGHAM YOUNG UNIVERSITYInventors: Calvin H. Bartholomew, Brian F. Woodfield, Baiyu Huang, Rebecca Elizabeth Olsen, Lynn Astle