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CO2 gasification in a dual fluidized bed reactor system
Oct 01, 2019 · Abstract. The use of CO 2 as gasification agent in the 100 kW th dual fluidized bed gasification pilot plant was investigated at TU Wien. For this purpose, steam was replaced stepwise by CO 2 as gasification agent. Softwood was used as fuel and olivine as bed material.
Steam gasification reactivity of a high-sodium coal fly ash
Jan 22, 2018 · CFB gasification system and fly ash acquisition. The schematic diagram of the CFB test rig is shown in Fig. 1, which is a pilot-scale dual-bed CFB gasification system with a maximum coal-feeding rate about 2.5 t/d. Particularly, single-bed CFB gasification or dual-bed CFB pyrolysis coupled with gasification could be easily operated, respectively.
Updraft Fixed Bed Gasification Aspen Plus Model - OSTI.GOV
Sep 27, 2007 · A fluidized-bed, integrated gasification combined-cycle (IGCC) power plant simulation was developed by METC using the Advanced System for Process Engineering (ASPEN) process simulator. The ASPEN simulation is based on a conceptual design of a 570 megawatt (MW) IGCC plant using Kellogg-Rust-Westinghouse (KRW) ash agglomerating pressurized fluid
Dual fluidized bed steam gasification: Change of product gas
Apr 05, 2019 · The impact of the counter-current column of the gasification reactor of a 100 kW th dual fluidized bed steam gasification pilot plant on the product gas quality was investigated. Through the advanced design of the gasification reactor by operating the lower part as bubbling bed and the upper part as counter-current column, the gas-solid interactions between downward flowing hot bed material particles with upwards flowing product gas could be enhanced.
(PDF) CO-GASIFICATION OF COAL AND BIOMASS – THERMODYNAMIC AND
CONCLUSION Fuels: Dual Fluidized Bed Steam Co-gasification of Coal and Wood”, APCBEE Procedia, 1, p.136–140, Thermodynamic analysis of cogasification was done to (2012). understand the effect of temperature and GaCR on the  Co-gasification Reactivity of Coal and Woody composition of product gas namely hydrogen, carbon Biomass in High
Modeling of reaction kinetics in bubbling fluidized bed
Jul 01, 2013 · The reactor in the plant is a dual circulating bubbling fluidized bed gasification reactor. The plant produces 2MW electricity and 4.5MW heat from the gasification of biomass. Wood chips as biomass and olivine particles as hot bed materials are fluidized with high temperature steam in the reactor.
CPFD simulations of an industrial-sized dual fluidized bed
Mar 15, 2017 · The dual fluidized bed (DFB) steam gasification of biomass is a promising way to convert biomass into a valuable product gas. At TU Wien, a process for biomass gasification has been developed which operates on the DFB principle. The process was developed from laboratory scale over pilot to finally industrial scale.
Steam biomass gasification in a dual fluidized bed (DFB) gasifier is proven technology to transform biomass via thermo-chemical gasification reactions to produce usable product gas . The product gas from the DFB gasifier is of high quality with high caloric value, high hydrogen content, and nitrogen free .
haiqi Gasification | netl.doe.gov
Other haiqi MSW gasification developers include Plasco Energy Group Inc. of Canada, PEAT International of Taiwan, and Advanced haiqi Power of England. Hitachi MSW Gasification Demonstration Plant, Yoshii, Japan A MSW plant, based on WPC's haiqi gasification technology, was constructed and commissioned in 1999, by Hitachi Ltd., at Yoshii, Japan.
5.2.3. Fluidized Bed Gasifiers | netl.doe.gov
Fluidized-bed gasifiers display these characteristics: Load flexibility and high heat transfer rates. Fuel flexibility, can gasify a wide range of feedstocks. Moderate oxidant and steam requirements. Uniform, moderately high temperature throughout the gasifier. Higher cold gas efficiency than entrained-bed gasifiers, but lower carbon conversion.
Thesis Rahman Jinar Hadi | Gasification | Energy Development
Dual fluidized bed gasifier. Dual fluidized bed (DFB) gasifier is a gasification reactor that consists two separated. columns as an interconnected thermal system. When steam is used as the gasification agent, 32 production gas with moderate to high calorific value is the unique feature of this type of reactor (Bridgwater 1995).
Progress of HyPr-RING Process Development for Hydrogen
Jul 01, 2006 · We have built a 50 kg-coal/d continuous reactor system that contained feed mechanism, fluidized bed reactor, and equipments for supplying heat and pressure and for separating gases and solids. Coal/CaO mixtures were continuously supplied into reactor, to react with high-temperature, and high-pressure steam.
Investigation on biomass steam gasification in a dual
Aug 31, 2018 · The dual fluidized bed (DFB) reactor is promising to convert biomass into high-quality syngas efficiently. In this work, a three-dimensional model is built based on the granular kinetic theory to predict the biomass steam gasification in dual fluidized bed reactors. The model is firstly validated against a series of experimental results.
Integration of biomasses gasification and renewable-energies
Karl, Jürgen & Pröll, Tobias, 2018. "Steam gasification of biomass in dual fluidized bed gasifiers: A review," Renewable and Sustainable Energy Reviews, Elsevier, vol. 98(C), pages 64-78.
Fischer-Tropsch (FT) liquid fuel synthesis. The dual fluidized bed (DFB) steam gasification is a promising technology of which a steam is used as a gasifying agent and to replace air in the all thermal DFB gasifier. The heat is supplied by hot circulating bed materials from the combustion zone to the gasification zone.