摘要:
The invention comprises a catalyst composition comprising a pentasil type of zeolite, one or more solid acidic promoters, an additional material selected from the group consisting of an anionic clay, smectite clay, and thermally or chemically modified clay, and optionally a filler and/or binder, methods for making the catalyst composition and a process for using the catalyst in the manufacture of olefins.
摘要:
The present invention relates to a process for the preparation of doped pentasil-type zeolite, which process comprises the steps of: a) preparing an aqueous precursor mixture from a silicon source, an aluminium source, and doped non-zeolitic seeds; and b) thermally treating the precursor mixture to form a doped pentasil-type zeolite. The term “non-zeolitic seeds” includes seeds made from materials selected from the group consisting of (i) X-ray amorphous materials, (ii) milled crystalline materials, such as milled zeolites, that have a relative crystallinity of not more than 75%, and (iii) crystalline materials other than zeolites, such as clays (e,g, bentonite and kaolin) and (low) crystalline aluminas.
摘要:
A method for performing a Fischer-Tropsch process using as a catalyst (precursor) an iron-containing layered material selected from the group consisting of layered materials in which iron is present in the layered structure as divalent and/or trivalent metal (group 1), iron-doped layered materials (group 2), calcined iron-doped layered materials (group 3), and calcined layered materials in which iron is present in the layered structure as divalent metal (group 4). The term “layered material” includes anionic clays, layered hydroxy salts, cationic clays, and cationic layered materials.
摘要:
The present invention is directed to a process for the preparation of crystalline anionic clay-containing bodies from sources comprising an aluminum source and a magnesium source comprising the steps of: a) preparing a precursor mixture, b) shaping the precursor mixture to obtain shaped- bodies, c) optionally thermally treating the shaped bodies, and d) aging to obtain crystalline anionic clay-containing bodies. The quintessence of the present invention is that the bodies are shaped prior to the forming of the crystalline anionic clay in said bodies. This results in very attrition resistant bodies, without the need to add a binder material.
摘要:
A composition of matter is described herein that can be subjected to pyrolysis and converted into a bio-oil. The composition comprises an intimate mixture of a particulate solid biomass material and a carbonaceous material. The carbonaceous material acts as a reducing agent during the pyrolysis reaction. The composition of matter produces bio-oil in a greater yield than prior art processes. The bio-oil is of improved quality, as evidenced by its low TAN value.
摘要:
A process is disclosed for making a biomass susceptible to depolymerization or liquefaction under mild conditions. The process comprises introducing into the biomass a material susceptible to the absorption of electro-magnetic radiation to form a radiation absorbent biomass. The radiation absorbent biomass is subjected to electro-magnetic radiation to form an activated biomass.
摘要:
A process for producing fuel from biomass is disclosed herein. The process includes torrefying biomass material at a temperature between 80° C. to 400° C. to form particulated biomass having a mean average particle size between 1 μm and 1000 μm. The particulated biomass is mixed with a liquid hydrocarbon to form a suspension, wherein the suspension includes from 1 weight percent to 40 weight percent particulated biomass. The suspension is fed into a unit selected from the group consisting of a pyrolysis reactor, a fluid catalytic cracking unit, a delayed coker, a fluid coker, a hydroprocessing unit, and a hydrocracking unit, and then at least a portion of the particulated biomass of the suspension is converted into fuel.
摘要:
A process is disclosed for converting biomass to fuels and/or valuable chemicals. The process comprises the steps of a) activating biomass to make it more susceptible to conversion; c) partially converting the biomass to a solubilized material; and d) subjecting the unconverted biomass to a second conversion step. The process optionally comprises a step b) of adding a solvent to the activated biomass. In a preferred embodiment the solubilized biomass obtained in step c) is removed before the unconverted biomass is subjected to step d).
摘要:
A process is described for pretreating lignocellulosic biomass. The process comprises swelling the lignocellulosic biomass with an aqueous liquid. The pretreated lignocellulosic biomass may be used as a feedstock for the enzymatic conversion to ethanol, or in a thermal conversion. process to produce bio-oil. The pretreatment results in a greater yield and, in the case of a thermal conversion process, a better quality of the bio-oil. The pretreatment process may be used to adjust the composition and amount of inorganic material present in the lignocellulosic biomass material.
摘要:
A composition of matter is disclosed comprising an intimate mixture of a particulate solid biomass material and a carbonaceous material. The composition is suitable for conversion to a bio-oil in a pyrolysis reaction. The carbonaceous material acts as a reducing agent during the pyrolysis reaction. The composition of matter produces bio-oil in a greater yield than prior art processes. The bio-oil is of improved quality, as evidenced by its low TAN value.