Process for the preparation of a catalyst comprising the steps of (a) preparing a slurry comprising clay, zeolite, and quasi-crystalline boehmite, provided that the slurry does not comprise peptized quasi-crystalline boehmite, (b) adding a monovalent acid to the slurry, (c) adding a silicon source to the slurry, and (d) shaping the slurry to form particles. This process leads to a catalyst with high accessibility and high attrition resistance.

This invention relates to improvements in the fast pyrolysis of biomass. In this invention, a portion of the products from a pyrolysis reactor are condensed in the liquid phase and at least a portion of the recovered liquid is recycled to the pyrolysis reactor for further conversion to valuable, useful products.

Lignocellulosic starting materials can be converted into an aqueous phase and a hydrocarbon phase in a one-step process by subjecting a mixture of a lignocellulosic starting material, an amorphous and unsupported sulfided nickel-molybdenum catalyst, and optionally a co-feed, to not less than a stoichiometric amount of hydrogen, elevated pressure and a temperature in the interval of 350-450 C. A novel catalyst for use in said process and a method for its production are also disclosed.

The invention relates to a method and an apparatus for producing hydrocarbons from plastic containing material, wherein the plastic containing material (1) is subjected into a pyrolysis reactor (2), steam (3) is fed into the pyrolysis reactor, and the plastic containing material is pyrolyzed with the steam by using a catalytic pyrolysis with a basic catalyst to convert the plastic containing material to a product (4) comprising hydrocarbons. Further, the invention relates to the use of the product obtained by the method.

Pyrolysis processes comprise contacting a waste polyolefin with a solid catalyst at a pyrolysis temperature to form a pyrolysis product containing C.sub.1-C.sub.10 hydrocarbons. In some instances, the solid catalyst can be a silica-coated alumina, a fluorided silica-coated alumina, or a sulfated alumina, while in other instances, the solid catalyst can be any suitable solid oxide or chemically-treated solid oxide that is characterized by a d50 average particle size from 5 to 12 m and a particle size span from 0.7 to 1.7. Hydrocarbon compositions are formed from the pyrolysis of waste polyolefins with specific amounts of methane and higher carbon number hydrocarbons.

A continuous process for transporting one or more waste plastic feedstocks to a refinery processing unit, includes receiving, in a blending unit, one or more waste plastic feedstocks, one or more waste plastic-immiscible bio feedstocks and a recycled inert carrier fluid received from a refinery processing unit, generating, in the blending unit, a homogeneous solution comprising the one or more waste plastic feedstocks, the one or more waste plastic-immiscible bio feedstocks and the recycled inert carrier fluid, and processing the homogeneous solution in the presence of a catalyst under catalytic cracking conditions in the refinery processing unit.

The present disclosure relates to the field of direct coal liquefaction, and discloses a catalyst oil-coal slurry and preparation method thereof, a method for direct coal liquefaction, and uses. The method comprises: mixing an oil-soluble molybdenum source, a solvent, coal powder and an optional sulfur source to obtain the catalyst oil-coal slurry. The use of the catalyst oil-coal slurry for direct coal liquefaction can obtain a higher oil yield and reduce production costs.

Lignocellulosic starting materials can be converted into an organic liquefaction product in a hydroliquefaction process by subjecting a mixture of a lignocellulosic starting material, an amorphous and unsupported sulfided nickel-molybdenum catalyst and a co-feed, to not less than a stoichiometric amount of hydrogen, elevated pressure and a temperature within the range of from 270 C. and up to but not including 350 C.

Renewable biomass feed slurry hydroprocessing is described, including, for example, a slurry hydroconversion process in which a feedstock comprising a renewable biomass component is subjected to slurry hydroconversion. The process generally comprises contacting a solid biomass feedstock and a slurry hydroconversion catalyst under suitable hydroconversion conditions to convert a portion of the feedstock to liquid and/or gas products. The process may utilize raw biomass as a feedstock and does not require the use of chemically processed or modified biomass feeds. Low coke yields may be obtained.

A highly active and selective solid catalyst comprising stable single-atom iridium (Ir) anchored in a zeolite, e.g., ZSM-5, for upcycling of plastics, such as high-density polyethylene, to yield valuable lower molecular weight hydrocarbon products is disclosed.