The present invention relates a deodorizing catalyst including a copper-manganese-based composite oxide, zeolite, and activated carbon.

In accordance with the present subject matter there is provided a catalyst composition including 70-98% of a non-zeolitic material; and 2-30% of at least one zeolite material, the percentage being based on weight of the catalyst composition. The subject matter also relates to a method for preparation of the catalyst composition. The subject matter further relates to a process for the fluid catalytic cracking of a hydrocarbon feedstock.

The present invention relates to a hybrid iron nanoparticle catalyst comprising: i) 1 to 50 wt. % nanoparticles comprising iron and at least one of a metal M selected from the group consisting of alkali metals, alkaline earth metals, transition metals of groups 3 to 7 and 9 to 11 of the Periodic Table of Elements, lanthanides and combinations of M thereof; and ii) 50 to 99 wt. % of an aluminosilicate or silicoaluminophosphate zeolite, based on the total weight of the catalyst, wherein said nanoparticle has a diameter of about 2 to 50 nm. The present invention also relates to a method of preparing the hybrid iron nanoparticle catalyst and a process for the production of light olefins using the hybrid iron nanoparticle catalyst.

A catalyst for pyrolysis of 1,2-dichloroethane (1,2-DCE) to prepare vinyl chloride monomer (VCM), a preparation method, a use, and a regeneration method thereof are provided. The catalyst for pyrolysis of 1,2-DCE to prepare VCM includes a silicon-aluminum molecular sieve. The catalyst for pyrolysis of 1,2-DCE to prepare VCM has high reaction activity and excellent selectivity and solves the problem that the pyrolysis of 1,2-DCE to prepare VCM in the prior art involves high reaction temperature and large energy consumption and is prone to coking and carbon deposition.

According to one or more embodiments described herein, a method for cracking a hydrocarbon oil may include contacting the hydrocarbon oil with a fluidized cracking catalyst including an ultra-stable Y-type zeolite in a fluidized catalytic cracking unit to produce light olefins, gasoline fuel, and coke. At least 99 wt. % of the hydrocarbon oil may have a boiling point greater than 350° C. The ultra-stable Y-type zeolite may be a framework-substituted zeolite in which a part of aluminum atoms constituting a zeolite framework thereof is substituted with 0.1-5 mass % zirconium atoms and 0.1-5 mass % titanium ions on an oxide basis. The fluidized cracking catalyst may include from 3.5 wt. % to 10 wt. % of one or more Group 7 metal oxides.

A hydrogenolysis bimetallic supported catalyst comprising a first metal, a second metal, and a zeolitic support; wherein the first metal and the second metal are different; and wherein the first metal and the second metal can each independently be selected from the group consisting of iridium (Ir), platinum (Pt), rhodium (Rh), ruthenium (Ru), palladium (Pd), molybdenum (Mo), tungsten (W), nickel (Ni), and cobalt (Co).

The present disclosure provides methods of synthesizing a zeolite with a silica-to-alumina ratio (SAR) of 10 or greater comprising, e.g.: forming a reaction mixture including at least one alumina source, at least one silica source, and at least one organic structure directing agent, wherein the reaction mixture has a solids content of about 10% or greater, and crystallizing the reaction mixture at a temperature of 100° C. or less at atmospheric pressure to form a zeolite.

A phosphorus-containing molecular sieve has a phosphorus content of about 0.3-5 wt %, a pore volume of about 0.2-0.95 ml/g, and a ratio of B acid content to L acid content of about 2-10. The molecular sieve has a specific combination of characteristics, including a high ratio of B acid content to L acid content, thereby exhibiting higher hydrocracking activity and ring-opening selectivity when used in the preparation of a hydrocracking catalyst.

A method for producing light aromatics, includes the steps of: i) contacting a feedstock comprising heavy aromatic(s) with a catalyst in a fluidized reactor for aromatics lightening reaction in the presence of hydrogen to obtain a product rich in C6-C8 light aromatic(s) and a spent catalyst, wherein the heavy aromatic is one or more selected from C9+ aromatics; ii) separating the resulted product rich in C6-C8 light aromatic(s) to obtain hydrogen, a non-aromatic component, C6-C8 light aromatic(s) and a C9+ aromatic component; and iii) recycling at least a part of the C9+ aromatic component to the fluidized reactor. The method has strong adaptability to feedstocks and high flexibility in operation and allows a long-period stable operation. The method can produce high-value light aromatics from heavy aromatics that are difficult to be treated and utilized.

A NaY molecular sieve with an aluminum-rich surface is prepared using a process that includes the steps of: a. mixing a directing agent and a first silicon source to obtain a first mixture, wherein the directing agent has a molar composition of Na.sub.2O:Al.sub.2O.sub.3:SiO.sub.2:H.sub.2O=(6-25):1:(6-25):(200-400); b. mixing the first mixture obtained in the step a with a second silicon source, an aluminum source and water to obtain a second mixture; c. carrying out hydrothermal crystallization on the second mixture obtained in the step b, and collecting a solid product. Calculated as SiO.sub.2, the weight ratio of the first silicon source to the second silicon source is 1:(0.01-12). The NaY molecular sieve has larger aluminum distribution gradient from the surface to the center of the particle than the conventional molecular sieve.