Patents by Inventor Dhairya Dilip MEHTA
Dhairya Dilip MEHTA 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).
-
Publication number: 20220298437Abstract: Implementations of the disclosed subject matter provide a process for upgrading refinery residue feedstock. Step a) may include introducing the refinery residue feedstock into a fluidized bed reactor as a solid. In step b), the refinery residue feedstock may be heated to a devolatilizing and thermal cracking temperature in the fluidized bed reactor to produce a product stream comprising gaseous hydrocarbons and solid coke. The gaseous hydrocarbons may be subjected to catalytic hydroprocessing, in step c), in the presence of molecular hydrogen to increase the hydrogen to carbon ratio and lower the average molecular weight of the gaseous hydrocarbons. In step d), the gaseous hydrocarbons may be separated from the solid coke. In step e), the gaseous hydrocarbons from step d) may be subjected to further processing to produce at least one of: C1-C3 hydrocarbons, liquefied petroleum gas, naphtha range hydrocarbons, and middle distillate range hydrocarbons.Type: ApplicationFiled: September 1, 2020Publication date: September 22, 2022Inventors: Vikrant Nanasaheb URADE, Rajeev NARAYAN, Ganesh CHINTAKUNTA, Harshavardhan Jayant CHOUDHARI, Dhairya Dilip MEHTA, Ashwin Kumar NAGARAJAN
-
Patent number: 10829695Abstract: A process for producing liquid hydrocarbon products from a biomass-containing feedstock and/or a biomass-derived feedstock is provided. The process comprises: a) contacting the feedstock with a hydropyrolysis catalyst composition and molecular hydrogen in a hydropyrolysis reactor vessel to produce a product stream comprising a deoxygenated hydrocarbon product, H2O, H2, CO2, CO, C1-C3 gases, char and catalyst fines; b) removing char and catalyst fines from said product stream; c) cooling the remaining product stream to a temperature of no more than 300° C.; and d) hydroconverting all or a portion of said deoxygenated hydrocarbon product in a hydroconversion reactor in the presence of one or more catalyst compositions suitable for the aromatic saturation of the deoxygenated hydrocarbon product and of the H2O, CO2, CO, H2, and C1-C3 gas generated in step a), to produce a product comprising C4+ hydrocarbon product, H2O, CO, CO2, and C1-C3 gases.Type: GrantFiled: November 21, 2016Date of Patent: November 10, 2020Assignee: Shell Oil CompanyInventors: Laxmi Narasimhan Chilkoor Soundararajan, Alan Anthony Del Paggio, Dhairya Dilip Mehta, Vikrant Nanasaheb Urade
-
Patent number: 10822546Abstract: A process for producing liquid hydrocarbon products from a biomass-containing feedstock and/or a biomass-derived feedstock is provided. The process comprises: a) contacting the feedstock with a hydropyrolysis catalyst composition and molecular hydrogen in a hydropyrolysis reactor vessel to produce a product stream comprising a partially deoxygenated hydrocarbon product, H2O, H2, CO2, CO, C1-C3 gases, char and catalyst fines; b) removing char and catalyst fines from said product stream; c) cooling the remaining product stream to a temperature in the range of from 150 to 400° C.; and d) hydroconverting said partially deoxygenated hydrocarbon product in a hydroconversion reactor in the presence of one or more catalyst compositions suitable for hydrodeoxygenation and aromatic saturation of the partially deoxygenated hydrocarbon product in the presence of H2O, CO2, CO, H2, and C1-C3 gas generated in step a), to produce a vapour phase product comprising a C4+ hydrocarbon product.Type: GrantFiled: November 22, 2016Date of Patent: November 3, 2020Assignee: Shell Oil CompanyInventors: Vikrant Nanasaheb Urade, Dhairya Dilip Mehta, Laxmi Narasimhan Chilkoor Soundararajan, Alan Anthony Del Paggio
-
Patent number: 10526555Abstract: A process for producing methane from a biomass, biomass-containing and/or biomass-derived feedstock is provided. The process comprises: a) providing in a hydropyrolysis reactor vessel a hydropyrolysis catalyst composition, said composition comprising one or more active metals supported on an oxide-based support, said one or more active metals comprising at least one of cobalt and nickel and said one or more active metals being present in total in an amount in the range of from 2 to 75 wt % based on the overall weight of the catalyst composition; b) contacting the feedstock with said hydropyrolysis catalyst composition and molecular hydrogen in said hydropyrolysis reactor vessel, to produce a first product stream comprising char, catalyst fines and gases comprising hydrogen and hydrocarbons, of which hydrocarbons at least 70 wt % is methane and, optionally, CO and CO2; and c) removing said char and catalyst fines from said first product stream.Type: GrantFiled: September 23, 2016Date of Patent: January 7, 2020Assignee: SHELL OIL COMPANYInventors: Vikrant Nanasaheb Urade, Laxmi Narasimhan Chilkoor Soundararajan, Madhusudhan Rao Panchagnula, Dhairya Dilip Mehta
-
Publication number: 20180346823Abstract: A process for producing liquid hydrocarbon products from a biomass-containing feedstock and/or a biomass-derived feedstock is provided. The process comprises: a) contacting the feedstock with a hydropyrolysis catalyst composition and molecular hydrogen in a hydropyrolysis reactor vessel to produce a product stream comprising a partially deoxygenated hydrocarbon product, H2O, H2, CO2, CO, C1-C3 gases, char and catalyst fines; b) removing char and catalyst fines from said product stream; c) cooling the remaining product stream to a temperature in the range of from 150 to 400° C.; and d) hydroconverting said partially deoxygenated hydrocarbon product in a hydroconversion reactor in the presence of one or more catalyst compositions suitable for hydrodeoxygenation and aromatic saturation of the partially deoxygenated hydrocarbon product in the presence of H2O, CO2, CO, H2, and C1-C3 gas generated in step a), to produce a vapour phase product comprising a C4+ hydrocarbon product.Type: ApplicationFiled: November 22, 2016Publication date: December 6, 2018Inventors: Vikrant Nanasaheb URADE, Dhairya Dilip MEHTA, Laxmi Narasimhan CHILKOOR SOUNDARARAJAN, Alan Anthony DEL PAGGIO
-
Publication number: 20180346820Abstract: A process for producing liquid hydrocarbon products from a biomass-containing feedstock and/or a biomass-derived feedstock is provided. The process comprises: a) contacting the feedstock with a hydropyrolysis catalyst composition and molecular hydrogen in a hydropyrolysis reactor vessel to produce a product stream comprising a deoxygenated hydrocarbon product, H2O, H2, CO2, CO, C1-C3 gases, char and catalyst fines; b) removing char and catalyst fines from said product stream; c) cooling the remaining product stream to a temperature of no more than 300° C.; and d) hydroconverting all or a portion of said deoxygenated hydrocarbon product in a hydroconversion reactor in the presence of one or more catalyst compositions suitable for the aromatic saturation of the deoxygenated hydrocarbon product and of the H2O, CO2, CO, H2, and C1-C3 gas generated in step a), to produce a product comprising C4+ hydrocarbon product, H2O, CO, CO2, and C1-C3 gases.Type: ApplicationFiled: November 21, 2016Publication date: December 6, 2018Inventors: Laxmi Narasimhan CHILKOOR SOUNDARARAJAN, Alan Anthony DEL PAGGIO, Dhairya Dilip MEHTA, Vikrant Nanasaheb URADE
-
Publication number: 20180273864Abstract: A process for producing methane from a biomass, biomass-containing and/or biomass-derived feedstock is provided. The process comprises: a) providing in a hydropyrolysis reactor vessel a hydropyrolysis catalyst composition, said composition comprising one or more active metals supported on an oxide-based support, said one or more active metals comprising at least one of cobalt and nickel and said one or more active metals being present in total in an amount in the range of from 2 to 75 wt % based on the overall weight of the catalyst composition; b) contacting the feedstock with said hydropyrolysis catalyst composition and molecular hydrogen in said hydropyrolysis reactor vessel, to produce a first product stream comprising char, catalyst fines and gases comprising hydrogen and hydrocarbons, of which hydrocarbons at least 70 wt % is methane and, optionally, CO and CO2; and c) removing said char and catalyst fines from said first product stream.Type: ApplicationFiled: September 23, 2016Publication date: September 27, 2018Applicant: Shell Oil CompanyInventors: Vikrant Nanasaheb URADE, Laxmi Narasimhan CHILKOOR SOUNDARARAJAN, Madhusudhan Rao PANCHAGNULA, Dhairya Dilip MEHTA