RESEARCH INSTITUTE OF PETROLEUM PROCESSING, SINOPEC

A method for the desulfurization and separation of a catalytic cracking light product includes the steps of: 1) contacting a catalytic cracking light product with a desulfurization adsorbent in an adsorption desulfurization reaction unit in the presence of hydrogen for desulfurization, and optionally carrying out gas-liquid separation on the resulting desulfurization product, to obtain a desulfurized rich gas and a desulfurized crude gasoline, wherein the catalytic cracking light product is an overhead oil-gas fraction from a catalytic cracking fractionator, or a rich gas and a crude gasoline from a catalytic cracking fractionator; and 2) separately sending the desulfurized rich gas and the desulfurized crude gasoline obtained in the step 1) to a catalytic cracking absorption stabilization system for separation, to obtain a desulfurized dry gas, a desulfurized liquefied gas and a desulfurized stabilized gasoline.

A ZSM-5/β core-shell molecular sieve has a core composed of at least two crystal grains of ZSM-5 molecular sieve and a shell composed of a plurality of crystal grains of β molecular sieve. The ZSM-5 molecular sieve grains has an average grain size of 0.05-15 μm. The core-shell molecular sieve has a shell coverage of 50-100%, a shell thickness of 10-2000 nm, and an average grain size of the β molecular sieve grains in the shell of 10-500 nm. A ratio of a height of a diffraction peak at 2θ=22.4° to a height of a diffraction peak at 2θ=23.1° in an X-ray diffraction pattern of the ZSM-5/β core-shell molecular sieve is 0.1-10:1.

A platinum-on-carbon catalyst, a preparation method therefor and the use thereof are provided. Among S2P spectral peaks thereof analyzed by means of XPS between 160 eV and 170 eV, the area of characteristic peaks (preferably a characteristic peak of thiophenic sulfur) located between 162 eV and 166 eV is more than 92%, or more than 95%, or more than 98%, or even only the characteristic peaks (preferably the characteristic peak of thiophenic sulfur) located between 162 eV and 166 eV. A carrier of the platinum-on-carbon catalyst is sulfur-doped conductive carbon black. The carrier of the platinum-on-carbon catalyst, i.e. conductive carbon black, is modified, and by controlling the doping form of the doping element, the mass specific activity and the electrochemical active area of the platinum-on-carbon catalyst are significantly improved. The stability and carbon corrosion resistance of the platinum-on-carbon catalyst can also be improved.

Described are an intelligence system and process for material blending in the gasification. The system includes a subsystem for material blending in the gasification, wherein the subsystem for material blending in the gasification includes a raw material property rapid analysis module, for obtaining raw material property parameters of raw materials according to characteristic spectral line intensities of in-furnace raw materials; a blended material property prediction module, for establishing a prediction model, and predicting blended material property parameters by means of the prediction model according to raw material property parameters and raw material proportions; a blending scheme optimization module, for establishing an optimization model, and obtaining an optimized blending scheme by means of the optimization model according to blended material property parameters; a blending scheme economy evaluation module, for outputting a blending scheme with the optimum technical economy.

An apparatus for preparing polyalpha-olefins includes a mixing unit, a microchannel reaction unit, a high-pressure separation unit, a low-pressure separation unit, a gas circulation unit, a post-treatment unit and a pressure control unit, the mixing unit, the microchannel reaction unit, the high-pressure separation unit, the low-pressure separation unit that are successively connected. The gas circulation unit, the microchannel reaction unit is provided with the BF 3 gas inlet, the mixing unit is provided with the auxiliary feed inlet, and the olefin raw material inlet, the gas circulation unit is connected with the BF 3 gas inlet, the low-pressure separation unit is further connected with the post-treatment unit, and the high-pressure separation unit, the pressure control unit, and the gas circulation unit are further successively connected. The apparatus has the advantages of high polymerization reaction speed, high reaction conversion and good product selectivity, and is suitable for large-scale industrial production.

A catalytic cracking additive, its preparation and application thereof are provided. The catalytic cracking additive contains 10-50 wt % of a modified β zeolite, 20-85 wt % of a clay and 5-35 wt % of a boron-containing binder, based on the total weight of the catalytic cracking additive. The modified β zeolite comprises 0.1-1 wt % of CuO and 1-15 wt % of P 2 O 5 , and has a micro-activity index of at least 58; the boron-containing binder comprises 70-97 wt % of Al 2 O 3 and 3-30 wt % of B 2 O 3 , and has a pH value of 1.0-3.5. The catalytic cracking additive can significantly improve the yield of C4 olefins and the concentration of C4 olefins in liquefied gas.

A platinum-carbon catalyst, a preparation method therefor and an application thereof are provided. Among N 1s spectral peaks of the XPS analysis of the platinum-carbon catalyst, except for the presence of characteristic peaks between 399 ev and 400.5 ev, there are no other characteristic peaks between 395 ev and 405 ev; and a carrier of the platinum-carbon catalyst is nitrogen doped conductive carbon black. The carrier conductive carbon black of the platinum-carbon catalyst is modified, and by means of controlling the doping form of a doping element, the mass specific activity and electrochemical area of the platinum-carbon catalyst are significantly improved; further, the stability of the platinum-carbon catalyst and the ability to resist carbon corrosion may also be improved. A method for preparing the platinum-carbon catalyst is also provided.

An organophosphorus compound has a structure represented by the general formula (I): The functional groups are defined in the description. The organophosphorus compound has prominent bearing capacity and excellent antiwear and antifriction performances, and can be used as an extreme pressure antiwear additive and used in lubricating oil and lubricating grease.

A rare earth-containing Y zeolite has at least two mesopore pore-size distributions at 2-3 nanometers and 3-4 nanometers. A catalytic cracking catalyst contains the rare earth-containing Y zeolite. When used in the catalytic cracking of heavy oil, the catalytic cracking catalyst invention has excellent heavy oil conversion ability, higher gasoline yield, and lower coke selectivity.

A rare earth-containing Y zeolite has at least two mesopore pore-size distributions at 2-3 nanometers and 3-4 nanometers. A catalytic cracking catalyst contains the rare earth-containing Y zeolite. When used in the catalytic cracking of heavy oil, the catalytic cracking catalyst provided has excellent heavy oil conversion ability, higher gasoline yield, and lower coke selectivity.