Abstract:
The present invention provides a process for producing liquid hydrocarbon products from at least one of a biomass-containing feedstock and a biomass-derived feedstock, said process comprising the steps of: a) contacting the biomass-containing feedstock and/or biomass-derived feedstock with a hydropyrolysis catalyst composition and molecular hydrogen in a hydropyrolysis reactor vessel at a temperature in the range of from 350 to 600°C, a pressure in the range of from 0.50 to 7.50MPa and a WHSV in the range of greater than 2.0 kg(biomass)/hour/kg(catalyst), to produce a product stream comprising a partially deoxygenated hydrocarbon product, H 2 O, H 2 , CO 2 , CO, C 1 - C 3 gases, char and catalyst fines; b) removing all or a portion of said 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 all or a portion of 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, H2O, CO, CO2, and C1 – C3 gases.
Abstract:
The present invention relates to a method for producing ketones which method comprises the steps of: a) providing a feedstock of biological origin comprising fatty acids and/or fatty acid derivatives having an average chain length of 24 C-atoms or less, b) subjecting said feedstock to a catalytic ketonisation reaction in the presence of a K 2 O/TiO 2 -catalyst, c) obtaining from said ketonisation reaction a product stream comprising ketones, which ketones have a longer average hydrocarbon chain length than the average hydrocarbon chain length in said feedstock, wherein step b) is carried out directly on said feedstock and in the presence of said K 2 O/TiO 2 -catalyst as the sole catalyst applied in said ketonisation reaction.
Abstract translation:本发明涉及一种生产酮的方法,该方法包括以下步骤:a)提供生物来源的原料,其包含平均链长为24个C原子或更少的脂肪酸和/或脂肪酸衍生物,b) 所述原料在K 2 O / TiO 2 - 催化剂存在下进行催化酮化反应,c)从所述酮化反应获得包含酮的产物流,所述酮具有比所述原料中的平均烃链长更长的平均烃链长度, 其中步骤b)直接在所述原料上并在所述K 2 O / TiO 2催化剂存在下作为在所述酮化反应中应用的唯一催化剂进行。
Abstract:
Various techniques are disclosed for pretreating municipal solid waste (MSW) and other biomass-containing feedstocks that may be of a poorer quality and consequently more difficult, or even impossible, to convert to higher value liquid products (e.g., transportation fuels) using conventional processes. Such conventional processes may otherwise be satisfactory for the conversion of the biomass portion of the feedstock alone. The pretreatment of biomass-containing feedstocks may generally include steps carried out prior to a hydropyrolysis step and optionally further steps, in order to change one or more characteristics of the feedstock, rendering it more easily upgradable.
Abstract:
The present invention relates to catalytic conversion of ketoacids, including methods for increasing the molecular weight of ketoacids, the method comprising the steps of providing in a reactor a feedstock comprising at least one ketoacid. The feedstock is then subjected to one or more C-C-coupling reaction(s) in the presence of hydrogen, and in the presence of a catalyst system having both hydrogenation activity and C-C-coupling activity.
Abstract:
The present invention relates to catalytic conversion of ketoacids, including methods for increasing the molecular weight of ketoacids, the method comprising the steps of providing in a reactor a feedstock comprising at least one ketoacid. The feedstock is then subjected to one or more C-C-coupling reaction(s) in the presence of a catalyst system comprising a first metal oxide and a second metal oxide.
Abstract:
Process for converting a biomass-derived pyrolysis oil comprising the following steps: i) preparing a catalyst, preferably containing one or more Group VIII metals in an amount of equal to or more than 30wt%, based on the total weight of the catalyst, by a method including - mixing one or more Group VIII metal components; a waterborne refractory oxide component comprising a refractory oxide selected from the Group consisting of titania, zirconia, silica and mixtures thereof; and a water-soluble base; in an aqueous solvent to prepare an metal-containing aqueous mixture; and - subjecting the metal-containing aqueous mixture to precipitation conditions; 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.
Abstract:
Maintaining long residence times during hydrothermal digestion of cellulosic biomass solids may be complicated by a number of factors, including biomass compaction. Advantages in this regard may be realized by digesting cellulosic biomass solids in an inclined digestion unit. Such methods can comprise: introducing cellulosic biomass solids to a hydrothermal digestion unit comprising one or more inclined surfaces therein; introducing a fluid phase digestion medium containing a slurry catalyst to the hydrothermal digestion unit, the slurry catalyst being capable of activating molecular hydrogen; supplying an upwardly directed flow of molecular hydrogen from a source disposed along each inclined surface as the cellulosic biomass solids descend along each inclined surface; and heating the cellulosic biomass solids as they descend along each inclined surface in the presence of the slurry catalyst and the molecular hydrogen, thereby forming an alcoholic component derived from the cellulosic biomass solids.
Abstract:
Maintaining long residence times during hydrothermal digestion of cellulosic biomass solids may be complicated by a number of factors, including biomass compaction. Advantages in this regard may be realized by digesting cellulosic biomass solids in an inclined digestion unit. Such methods can comprise: introducing cellulosic biomass solids to a hydrothermal digestion unit comprising one or more inclined surfaces therein; introducing a fluid phase digestion medium containing a slurry catalyst to the hydrothermal digestion unit, the slurry catalyst being capable of activating molecular hydrogen; supplying an upwardly directed flow of molecular hydrogen from a source disposed along each inclined surface as the cellulosic biomass solids descend along each inclined surface; and heating the cellulosic biomass solids as they descend along each inclined surface in the presence of the slurry catalyst and the molecular hydrogen, thereby forming an alcoholic component derived from the cellulosic biomass solids.
Abstract:
The present invention relates to a method of deoxygenating tall oil pitch, yielding aliphatic and aromatic hydrocarbons. The invention even comprises turning the aliphates into polymerizable olefins by steam cracking, and turning the aromates into polymerizable terephthalic acid by oxygenation and, as necessary, rearrangement. The monomers can be used for the production of polymers of partially or completely biologic origin. According to the invention, tall oil pitch is first heated to turn it into liquid, which is then fed into a catalyst bed and catalytically deoxygenated with hydrogen. The deoxygenation catalyst is preferably a NiMo catalyst and, in addition, a cracking catalyst can be used, such as an acidic zeolite catalyst. The deoxygenated product stream is cooled down so as to obtain a liquid, which is distilled for separation of the aliphatic and aromatic hydrocarbons for use in the production of the respective monomers and finally polymers.
Abstract:
The present invention provides a composition comprising 10- 40 mass! of C 8-30 linear alkanes, up to 20 mass% of C 7-20 aromatic hydrocarbons, at least 90 mass% of which are monoaromatic, and no more than 1 massl in total of oxygen containing compounds; wherein the total amount of C 8-30 alkanes in the composition is 50-95 mass% ( and the total amount of C 8-30 alkanes, C 7-20 aromatic hydrocarbons and C 8-30 cycloalkanes is at least 95 massl; and wherein the amounts are based on the mass of the composition. Also provided is a method for producing the composition comprising the step of hydroprocessing a biological feedstock using a catalyst and the step of fractionating the product of the hydroprocessing step.