Abstract:
The present invention relates to a catalyst composition comprising Ru supported on zirconia, where said zirconia comprises 60-100 wt% of monoclinic phase of zirconia, to the use of said catalyst composition and to a method of preparing said catalyst composition.
Abstract:
The present invention provides a process for producing liquid hydrocarbon products from a solid biomass feedstock, said process comprising the steps of: a) providing in a first hydropyrolysis reactor vessel a first hydropyrolysis catalyst composition, said composition comprising one or more active metals selected from cobalt, molybdenum, nickel, tungsten, ruthenium, platinum, palladium, iridium and iron on an oxide support, wherein the one or more active metals are present in an oxidic state; b) contacting the solid biomass feedstock with said first hydropyrolysis catalyst composition and molecular hydrogen in said first hydropyrolysis reactor vessel at a temperature in the range of from 350 to 600°C and a pressure in the range of from 0.50 to 7.50MPa, to produce a product stream comprising partially deoxygenated hydropyrolysis product, H 2 O, H 2 , CO 2 , CO, C 1 - C 3 gases, char and catalyst fines; c) removing said char and catalyst fines from said product stream; d) hydroconverting said partially deoxygenated hydropyrolysis product in a hydroconversion reactor vessel in the presence of one or more hydroconversion catalyst and of the H 2 O, CO 2 , CO, H 2 , and C 1 - C 3 gas generated in step a), to produce a vapour phase product 25 comprising substantially fully deoxygenated hydrocarbon product, H 2 O, CO, CO 2 , and C 1 – C 3 gases.
Abstract:
The present invention provides a process for producing liquid hydrocarbon products from a solid biomass feedstock, said process comprising the steps of: a) providing in a first hydropyrolys is reactor vessel a first hydropyrolysis catalyst composition, said composition comprising one or more active metals selected from cobalt, molybdenum, nickel, tungsten, ruthenium, platinum, palladium, iridium and iron on an oxide support, wherein the active metals are present in a partially sulfided form to the extent that the first hydropyrolysis catalyst composition contains sulfur in an amount of from 10 to 90% of a full stoichiometric amount; b) contacting the solid biomass feedstock with said first hydropyrolysis catalyst composition and molecular hydrogen in said first hydropyrolysis reactor vessel at a temperature in the range of from 350 to 600°C and a pressure in the range of from 0.50 to 7.50MPa, to produce a product stream comprising partially deoxygenated hydropyrolysis product, H 2 O, H 2 , CO 2 , CO, C 1 - C 3 gases, char and catalyst fines; c) removing said char and catalyst fines from said product stream; d) hydroconverting said partially deoxygenated hydropyrolysis product in a hydroconversion reactor 25 vessel in the presence of one or more hydroconversion catalyst and of the H 2 O, CO 2 , CO, H 2 , and C 1 - C 3 gas generated in step a), to produce a vapour phase product comprising substantially fully deoxygenated hydrocarbon product, H 2 O, CO, CO 2 , and C 1 – C 3 gases.
Abstract:
The conversion of renewable feedstock, particularly camelina oil, into jet fuel and other high-value chemicals. The conversion comprises the processes of alkene metathesis, dehydrogenation, hydrogenation, and vacuum distillation.
Abstract:
A process for converting a biomass-derived pyrolysis oil in which the pyrolysis oil is contacted with hydrogen in the presence of a catalyst, comprising the following steps: i) preparing a catalyst containing at least one or more Group VIII metals, preferably in an amount of equal to or more than 2wt%, more preferably equal to or more than 16wt%, even more preferably equal to or more than 18wt%, most preferably equal to or more than 20wt%, to equal to or less than 80wt%, more preferably to equal to or less than 65wt% based on the total weight of the catalyst, by a method comprising - (a) comulling (1) a refractory oxide, (2) a small amount of liquid, chosen such that the Loss On Ignition (LOI) at 485°C of the mixture is from equal to or more than 20wt% to equal to or less than 70wt% based on the total weight of the catalyst composition,and (3) at least one or more metal component(s), which is/are at least partially insoluble in the amount of liquid used, to form a mixture, wherein the metal component(s) is/are at least one or more Group VIII metal component, preferably nickel or a nickel component; - (b) optionally shaping, and drying of the mixture thus obtained; and - (c) calcination of the composition thus obtained to provide a calcined catalyst; and ii) contacting a feed containing the biomass-derived pyrolysis oil with hydrogen at a temperature in the range from 50°C to 350°C in the presence of the catalyst prepared in step i).
Abstract:
A method for thermo-catalytically producing C4+ hydrocarbons from lignocellulosic biomass solids is provided by reducing the water content of the biomass feed prior to biomass hydrothermal hydrocatalytic conversion.
Abstract:
Processes and bi-functional catalysts are disclosed for hydrotreating bio-oils derived from biomass to produce bio-oils containing fuel range hydrocarbons suitable as feedstocks for production of bio-based fuels.
Abstract:
Biomass compaction during hydrothermal digestion of cellulosic biomass solids may become problematic, particularly as the vertical height of a cellulosic biomass charge increases. Compaction may be decreased in a horizontally configured hydrothermal digestion unit. Methods for digesting cellulosic biomass solids may comprise: providing a hydrothermal digestion unit having a length or a width greater than its height and containing a fluid phase digestion medium and a slurry catalyst capable of activating molecular hydrogen; introducing cellulosic biomass solids to the hydrothermal digestion unit; distributing the cellulosic biomass solids laterally within the hydrothermal digestion unit; after or while the cellulosic biomass solids are being distributed, supplying an upwardly directed flow of molecular hydrogen through the cellulosic biomass solids and the fluid phase digestion medium; and heating the cellulosic biomass solids in the presence of the slurry catalyst and the molecular hydrogen, thereby forming an alcoholic component derived from the cellulosic biomass solids.
Abstract:
Methods, catalysts, and reactor systems for producing in high yield aromatic chemicals and liquid fuels from a mixture of oxygenates comprising di- and polyoxygenates are disclosed. Also disclosed are methods, catalysts, and reactor systems for producing aromatic chemicals and liquid fuels from oxygenated hydrocarbons such as carbohydrates, sugars, sugar alcohols, sugar degradation products, and the like; and methods, catalysts, and reactor systems for producing the mixture of oxygenates from oxygenated hydrocarbons such as carbohydrates, sugars, sugar alcohols, sugar degradation products, and the like. The disclosed catalysts for preparing the mixture of oxygenates comprise a Group VIII metal and a crystalline alumina support.
Abstract:
Catalytic processes for converting carboxylic acids obtained from biomass and other natural or industrial sources into paraffinic or olefinic hydrocarbons through decarboxylation, along with products formed from such hydrocarbons, in which the carbon chain length, the ratio of carbon-14 to carbon-12, and the ratio of odd number to even number of carbons in the chain are among factors which are indicative or otherwise useful for the detection of hydrocarbons formed by undergoing the claimed processes