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Patent Agency Ranking
1.发明公开公开(公告)号：US20240209208A1
公开(公告)日：2024-06-27
申请号：US18279805
申请日：2021-11-10
Inventor： Ozcan Altintas , Justin P. Romaire , Jihad M. Dakka , Renyuan Yu , Anthony S. Mennito , Brandon M. Carcuffe , Teng Xu
IPC: C08L95/00
CPC classification number: C08L95/00 , C08L2555/74
Abstract: Isotropic pitch compositions may be obtained by reacting an aromatic feedstock comprising one or more aromatic classes with formaldehyde or paraformaldehyde under acidic conditions. Isotropic pitch compositions may comprise: at least two monomers linked with at least one methylene bridge between each one of the at least two monomers, wherein each one of the at least monomers comprises one or more aromatic classes comprising one or more 5-membered rings, 6-membered rings, and any combination thereof; and wherein the isotropic pitch composition has a weight average molecular weight (Mw) of about 300 g/mol to about 1,500 g/mol, a softening point (Tsp) of 90° C. or greater, and a micro carbon residue (MCR) of about 18 wt % or greater, based on the total weight of the isotropic pitch composition.
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公开(公告)号：US11590481B2
公开(公告)日：2023-02-28
申请号：US17349989
申请日：2021-06-17
Inventor： Takayuki Iida , Jihad M. Dakka , Brandon M. Carcuffe , Aaron Peters
Abstract: Provided herein are methods for hydroisomerization of a hydrocarbon feedstock comprising contacting the hydrocarbon feedstock with hydrogen and a catalyst to yield a hydrocarbon product having an increase in branched hydrocarbons relative to the hydrocarbon feedstock. The present catalysts comprise a heteroatom-doped Beta zeolite having a trivalent cation as a framework metal oxide, an extra-framework species comprised of cerium and/or cobalt, and from 0.01 to 1.5 wt. % of a group VIII or VIB metal, or a combination thereof.
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公开(公告)号：US12030845B2
公开(公告)日：2024-07-09
申请号：US17807024
申请日：2022-06-15
Inventor： Wesley Sattler , Jihad M. Dakka , Guang Cao , Xinrui Yu , Brandon M. Carcuffe , Jason M. Golias , Scott J. Weigel , Carolyn M. Aimino , Megan E. Witzke
CPC classification number: C07C5/2705 , B01J21/066 , B01J23/002 , B01J23/30 , C07C2521/06 , C07C2523/30
Abstract: Isomerization of normal paraffins to form branched paraffins may be complicated by significant cracking of C7+ paraffins under isomerization reaction conditions. This issue may complicate upgrading of hydrocarbon feeds having significant quantities of heavier normal paraffins. Cracking selectivity may be decreased by combining one or more naphthenic compounds with a feed mixture comprising at least one C7+ normal paraffin and/or by utilizing tungstated zirconium catalysts having decreased tungsten loading. Further, C5 and C6 normal paraffins may undergo isomerization in the presence of C7+ normal paraffins. Methods for isomerizing normal paraffins may comprise: providing a feed mixture comprising at least C5-C7 normal paraffins and lacking normal paraffins larger than C8; and contacting the feed mixture with a bifunctional mixed metal oxide catalyst under isomerization reaction conditions effective to form a product mixture comprising one or more branched paraffins formed from each of the C5-C7 normal paraffins.
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公开(公告)号：US20220402838A1
公开(公告)日：2022-12-22
申请号：US17807024
申请日：2022-06-15
Inventor： Wesley Sattler , Jihad M. Dakka , Guang Cao , Xinrui Yu , Brandon M. Carcuffe , Jason M. Golias , Scott J. Weigel , Carolyn M. Aimino , Megan E. Witzke
Abstract: Isomerization of normal paraffins to form branched paraffins may be complicated by significant cracking of C7+ paraffins under isomerization reaction conditions. This issue may complicate upgrading of hydrocarbon feeds having significant quantities of heavier normal paraffins. Cracking selectivity may be decreased by combining one or more naphthenic compounds with a feed mixture comprising at least one C7+ normal paraffin and/or by utilizing tungstated zirconium catalysts having decreased tungsten loading. Further, C5 and C6 normal paraffins may undergo isomerization in the presence of C7+ normal paraffins. Methods for isomerizing normal paraffins may comprise: providing a feed mixture comprising at least C5-C7 normal paraffins and lacking normal paraffins larger than C8; and contacting the feed mixture with a bifunctional mixed metal oxide catalyst under isomerization reaction conditions effective to form a product mixture comprising one or more branched paraffins formed from each of the C5-C7 normal paraffins.
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公开(公告)号：US11745168B2
公开(公告)日：2023-09-05
申请号：US17349986
申请日：2021-06-17
Inventor： Scott J. Weigel , Megan E. Witzke , Wesley Sattler , Brandon M. Carcuffe , Jihad M. Dakka , Ryan S. Dugan
IPC: B01J23/00 , B01J6/00 , B01J21/06 , B01J23/888 , B01J35/00 , B01J35/10 , B01J37/03 , C07C5/27 , B01J37/00
CPC classification number: B01J23/002 , B01J6/001 , B01J21/066 , B01J23/888 , B01J35/0026 , B01J35/1014 , B01J35/1019 , B01J37/03 , C07C5/2705 , B01J37/0009 , C07C2521/06 , C07C2523/888
Abstract: Tungstated zirconium catalysts for paraffin isomerization may comprise: a mixed metal oxide that is at least partially crystalline and comprises tungsten, zirconium, and a variable oxidation state metal selected from Fe, Mn, Co, Cu, Ce, Ni, and any combination thereof. The mixed metal oxide comprises about 5 wt. % to about 25 wt. % tungsten, about 40 wt. % to about 70 wt. % zirconium, and about 0.01 wt. % to about 5 wt. % variable oxidation state metal, each based on a total mass of the mixed metal oxide. The mixed metal oxide has a total surface area of about 50 m2/g or greater as measured according to ISO 9277, and at least one of the following: an ammonia uptake of about 0.05 to about 0.3 mmol/g as measured by temperature programmed adsorption/desorption, or a collidine uptake of about 100 μmol/g or greater as measured gravimetrically.
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