6 results about "Integrated gasification combined cycle" patented technology

The application relates to an IGCC system coupled with biomass and near-zero emission high-purity CO2 capture and a working method thereof, and belongs to the field of coal gasification combined cycle power generation coupled with biomass, in particular to an IGCC system coupled with biomass and near-zero emission high-purity CO2 capture and a working method thereof. The application is used for solving the problems that the existing IGCC system has low CO2 capture rate, high energy consumption, low power generation efficiency, and a large amount of nitrogen generated in the oxygen taking process and difficult to effectively utilize. The application comprises an air separation device, a gasification furnace, a sensible heat recovery device, a purification device, a gas power generation unit, a waste heat recovery unit, a steam power generation unit, a biomass fermentation device, a methane reforming unit, an adsorption separation unit and an ammonia synthesis tower. The application is based on the overall coal gasification combined cycle power generation system of post-combustion CO2 capture and oxygen-enriched combustion technology, introduces a biomass ammonia synthesis process, generates H2 and CO through biomass fermentation and reforming, utilizes N2, and improves the system efficiency.

The present invention discloses a medium and high temperature desulfurization composite adsorbent and its preparation method and application. The composite adsorbent uses rectorite or modified rectorite as a carrier and metal oxides loaded on the carrier as active ingredients. The preparation method of the sulfur composite adsorbent is as follows: S1. Add nitric acid solution to the nitrate solution to adjust the pH, and then add citric acid, and mix evenly to obtain a mixed solution; S2. Add rectorite or modified rectorite to the mixed solution, and then perform ultrasonic impregnation treatment. The impregnated rectorite or modified rectorite is subjected to a water bath. After it becomes a gel state, it is aged. After the aging is completed, it is dried to obtain a solid; S3. Place the solid in a muffle furnace for calcination, and after the calcination is completed, it is crushed. This composite adsorbent has high desulfurization efficiency, good cycle stability, and is easy to regenerate, and can be used for high-temperature removal of hydrogen sulfide gas generated in integrated gasification combined cycle power generation, fuel cell production, and biomass gasification power generation processes.

The present invention provides an operation method of an integrated gasification combined cycle, the method comprising the steps of: (a) securing basic data obtained from one or more raw materials and additives, one or more sensor means installed in the integrated gasification combined cycle, and intrinsic values of the raw materials and additives; (b) securing process data obtained from the sensor means; (c) securing output data obtained through the integrated gasification combined cycle; (d) collecting the basic data, the process data, and the output data to label the data with a machine learning model; and (e) deriving optimal operating conditions on the basis of the labeled data.

The invention relates to the technical field of water conservancy projects, in particular to an IGCC (integrated gasification combined cycle) unit tower pool water surface floating object collecting device which comprises a collecting assembly, a water surface floating object collecting assembly and a water surface floating object collecting assembly, and the collecting assembly comprises a collecting barrel and floaters arranged on the surface of the collecting barrel; the floating and sinking assembly comprises a box body and branch pipes arranged at the bottom of the box body; the expansion assembly comprises an air bag arranged in the box body and a ventilation pipe connected with the air bag; the weight of water in the box body is changed under the action of the water pump, so that the collecting barrel can float and sink up and down during filtering, can float upwards when the collecting barrel is full, so that water entering is reduced, the water level in the collecting barrel is reduced, floating objects can be in direct contact with the filtering barrel, and sink downwards when the water level in the collecting barrel is low, water filling is increased, and the filtering speed is increased; meanwhile, the opposite arrangement of the floating block and the floater can drive the filter barrel to move up and down relative to the collecting barrel to change the position of the floater and avoid blockage of filter holes in the surface of the filter barrel.

A powder supply hopper pressurizing apparatus including a first buffer tank in which pressurizing gas to be supplied to a powder supply hopper is accumulated at a predetermined pressure, a second buffer tank, a lower part pressure adjustment nitrogen system connected to the powder supply hopper, to supply the gas toward powder fuel stored in the powder supply hopper when supplying the powder fuel to a burner, and a control unit that controls the first buffer tank to pressurize the powder supply hopper to a first pressure and then controls the second buffer tank to pressurize the powder supply hopper to a second pressure, and where the control unit determines that one of the first buffer tank or the second buffer tank is non-usable, the control unit pressurizes the powder supply hopper by use of the first or second buffer tank that is operable, and the gas supply system.

This invention discloses a method and system for targeted deep desulfurization of syngas for integrated gasification combined cycle (IGCC) power generation, belonging to the field of gas purification. The process includes pretreatment to remove impurities, removal of most inorganic sulfur using an alkanolamine solution, and graded treatment of the syngas through an Al2O3 layer, a pre-sulfurized NiMoS / CoMoS catalyst layer, and a zinc oxide layer in a fine desulfurization tower. GC-SCD technology is used to trace the sulfur form and optimize the process. The deactivated catalyst is regenerated by low-temperature coking and resulfurization. The pre-sulfurization catalyst uses TiO2-Al2O3 as a carrier, with TiO2 accounting for 5-15 wt%, and the catalytic hydrolysis conditions are 100-140℃ and 1.5-2.2 MPa. This invention achieves targeted conversion of organic sulfur under mild conditions, inhibits the formation of thiols and sulfides, and the catalyst is regenerable. The total sulfur in the treated syngas is ≤0.1 ppm, making it suitable for ultra-deep purification of IGCC and coal chemical syngas, with high desulfurization efficiency and low operating costs.