Abstract: Provided are a preparation method for and use of a molecular sieve-based honeycomb monolithic denitrification catalyst. A molecular sieve-based catalyst, a metal-modified natural silica-aluminum mineral, an organic binder, an extrusion aid, a pore-forming agent, glass fiber, a structuring agent, an inorganic binder, an acid solution, a humectant and water are mixed and then subjected to structuring water dissolution and other processes to obtain a molecular sieve-based honeycomb monolithic denitrification catalyst.

Abstract: Provided are a method for increasing the loading capacity of a honeycomb catalyst support and the preparation of a denitrification catalyst based on the catalyst support. First, a natural silica-aluminum mineral is used to prepare a honeycomb catalyst support, a water-soluble polymer fiber bundle is used as a structuring agent, and two processes of alkali etching and structuring water dissolution are performed for pretreatment to obtain a clay-based honeycomb catalyst support; then, the catalyst support is completely immersed in a molecular sieve-based coating slurry twice for immersion and coating, and then calcined to obtain a high-load molecular sieve-based coated honeycomb monolithic denitrification catalyst. According to the provided, by performing structural adjustment on a honeycomb catalyst support, inner wall channels are effectively widened.

Abstract: The disclosure provides a preparation method and use of function type active aluminosilicate. The method comprises the steps: mixing and pulping a natural aluminosilicate mineral, an organic acid salt and an alkali metal hydroxide solution, and respectively depolymerizing and carbonizing the natural aluminosilicate mineral and the organic acid salt in slurry in a spray drier. The prepared aluminosilicate can be used for synthesis of a hierarchical molecular sieve in which the contained high-active silica and alumina species provide the silicon and aluminum sources for synthesizing the hierarchical molecular sieve, and the contained carbon particles serve as mesoporous template agent for synthesizing the hierarchical molecular sieve.

Abstract: A catalyst for residue suspended bed hydrocracking and a preparation method and application thereof are disclosed. The catalyst is obtained by mixing a VIIB or VIIIB group transition metal salt solution with a ferric salt solution, conducting parallel-flow precipitation with an alkaline solution, adding a silicon source, and then conducting aging, washing, drying, and calcination. The catalyst has a stable structure and excellent hydrogenation activity. When used in a residue suspended bed hydrocracking reaction, the yield of liquid is up to 91 wt %, the yield of gasoline and diesel oil is up to 60 wt %, and both the yield of gas and the yield of coke are low. The catalyst has a good application prospect in residue suspended bed hydroconversion process.

Abstract: A catalyst for residue suspended bed hydrocracking and a preparation method and application thereof are disclosed. The catalyst is obtained by mixing a VIM or VIIIB group transition metal salt solution with a ferric salt solution, conducting parallel-flow precipitation with an alkaline solution, adding a silicon source, and then conducting aging, washing, drying, and calcination. The catalyst has a stable structure and excellent hydrogenation activity. When used in a residue suspended bed hydrocracking reaction, the yield of liquid is up to 91 wt %, the yield of gasoline and diesel oil is up to 60 wt %, and both the yield of gas and the yield of coke are low. The catalyst has a good application prospect in residue suspended bed hydroconversion process.

Abstract: A method of preparing a mesoporous Fe—Cu—SSZ-13 molecular sieve includes activating an aluminum source, a silicon source, an iron source and a copper source respectively; mixing the activated minerals with sodium hydroxide, water and a seed crystal at 25-90° C., while controlling feeding amounts of respective raw materials so that molar ratios of respective materials in a synthesis system are as follows: SiO2/Al2O3=10-100, SiO2/Fe2O3=30-3000, SiO2/CuO=1-100, Na2O/SiO2=0.1-0.5, H2O/SiO2=10-50, template/SiO2=0.01-0.5; adding an acid source to adjust pH of the system for first aging; and adding the acid source again to adjust the pH of the system for second aging to obtain aged gel; pouring an aged mixture into a kettle; cooling a crystallized product and filtering to remove a liquor; washing a filter cake; drying to obtain a solid; performing ion exchange; and filtering, washing and drying the solid to obtain powder; and placing the powder in a muffle furnace.

Abstract: The present invention belongs to the technical field of petroleum processing, and specifically relates to a method for preparing a catalyst for inferior residual oil suspended bed hydrocracking. Using sol-gel method and hydrothermal method, a mesoporous ?-Fe2O3 catalyst suitable for inferior residual oil suspended bed hydrocracking with a high specific surface area was prepared, based on FeCl3.6H2O, Fe2(SO4)3.xH2O as inorganic iron source, and cheap sawdust powder as template. The present invention proposes to prepare a ?-Fe2O3 material with a mesoporous structure, a high specific surface area and a high pore volume using cheap raw materials and a simple and green synthesis process. The material as a catalyst has a good application effect in the heavy oil suspended bed hydrocracking reaction with a small amount, therefore having good commercial and industrial application value.

Abstract: A method of preparing a mesoporous Fe—Cu—SSZ-13 molecular sieve includes activating an aluminum source, a silicon source, an iron source and a copper source respectively; mixing the activated minerals with sodium hydroxide, water and a seed crystal at 25-90° C., while controlling feeding amounts of respective raw materials so that molar ratios of respective materials in a synthesis system are as follows: SiO2/Al2O3=10-100, SiO2/Fe2O3=30-3000, SiO2/CuO=1-100, Na2O/SiO2=0.1-0.5, H2O/SiO2=10-50, template/SiO2=0.01-0.5; adding an acid source to adjust pH of the system for first aging; and adding the acid source again to adjust the pH of the system for second aging to obtain aged gel; pouring an aged mixture into a kettle; cooling a crystallized product and filtering to remove a liquor; washing a filter cake; drying to obtain a solid; performing ion exchange; and filtering, washing and drying the solid to obtain powder; and placing the powder in a muffle furnace.

Abstract: This invention belongs to the technical field of green preparation of environmentally friendly catalysts, and discloses a preparation method and application of mesoporous FeCu—ZSM-5 molecular sieve, in particular to a method for synthesizing mesoporous FeCu—ZSM-5 molecular sieve by one-pot method and the application in selective catalytic reduction (SCR) denitration reaction. This invention firstly proposes to combine the two calcinations after demolding and ion exchange into one, that is, the original powder is directly calcined to prepare a FeCu—ZSM-5 molecular sieve. The molecular sieve has several advantages such as window with wide temperature window, low cost, good hydrothermal stability and high SCR denitrification activity. Besides, the synthesis process does not use a (large) pore template, nor does it use a post-treatment method to construct the mesopores.