Novel Modeling Tool for Fixed-Bed Biomass Gasification Using High-Temperature Air

2007 ◽  
Vol 46 (26) ◽  
pp. 8852-8856 ◽  
Author(s):  
Xiaolin Wang ◽  
Hui Zhang ◽  
Lili Zheng
Keyword(s):  
High Temperature ◽  
Fixed Bed ◽  
Biomass Gasification ◽  
Modeling Tool

scholarly journals Regenerable Sorbents for High‐Temperature Desulfurization of Syngas from Biomass Gasification

2021 ◽  
Author(s):  
Jianyu Ma ◽  
Mehdi Mahmoodinia ◽  
Kumar R. Rout ◽  
Edd A. Blekkan
Keyword(s):  
High Temperature ◽  
Biomass Gasification

scholarly journals Sampling and Analysis of Alkali in High-Temperature, High-Pressure Gasification Streams

1985 ◽  
Author(s):  
Cynthia K. McCurry ◽  
Robert R. Romanosky
Keyword(s):  
High Pressure ◽  
High Temperature ◽  
Gas Turbines ◽  
Fixed Bed ◽  
Atomic Emission ◽  
Sampling System ◽  
Fuel Gas ◽  
Gas Streams ◽  
Coal Gasifier ◽  
High Temperature High Pressure

This paper describes the experiences leading to successful sampling of hot, contaminated, coal-derived gas streams for alkali constituents using advanced spectrometers. This activity was integrated with a multi-phase, combustion test program which addressed the use of minimally treated, coal-derived fuel gas in gas turbines. Alkali contaminants in coal-derived fuels are a source of concern, as they may induce corrosion of and deposition on turbine components. Real-time measurement of alkali concentrations in gasifier output fuel gas streams is important in evaluating these effects on turbine performance. An automated, dual-channel, flame atomic emission spectrometer was used to obtain on-line measurements of total sodium and potassium mass loadings (vapors and particles) in two process streams at the General Electric fixed-bed coal gasifier and turbine combustor simulator facility in Schenectady, New York. Alkali measurements were taken on (1) slipstreams of high temperature, high pressure, minimally clean, low-Btu fuel gas containing entrained particles from the gasifier and (2) a slipstream of the exhaust gas from the combustor/turbine simulator. Alkali detection limits for the analyzer were found to be on the order of one part per billion. Providing a representative sample to the alkali analyzer at the limited flows required by the instrument was a major challenge of this activity. Several approaches and sampling hardware configurations were utilized with varying degrees of success during this testing campaign. The resulting information formed the basis for a second generation sampling system which has recently been successfully utilized to measure alkali concentrations in slipstreams from the described fixed-bed coal gasifier and turbine combustor simulator.

A hybrid peripheral fragmentation and shrinking-core model for fixed-bed biomass gasification

2020 ◽  
Vol 400 ◽  
pp. 124940
Author(s):  
Zhiyi Yao ◽  
Xin He ◽  
Qiang Hu ◽  
Wei Cheng ◽  
Haiping Yang ◽  
...  
Keyword(s):  
Fixed Bed ◽  
Biomass Gasification ◽  
Core Model ◽  
Shrinking Core Model ◽  
Shrinking Core

scholarly journals High-Temperature, Dry Scrubbing of Syngas with Use of Mineral Sorbents and Ceramic Rigid Filters

Energies ◽  
2020 ◽  
Vol 13 (6) ◽  
pp. 1528
Author(s):  
Mateusz Szul ◽  
Tomasz Iluk ◽  
Aleksander Sobolewski
Keyword(s):  
High Temperature ◽  
Fixed Bed ◽  
Pilot Scale ◽  
Industrial Applications ◽  
Filtration Process ◽  
Ceramic Filters ◽  
Gas Cleaning ◽  
The Stability

In this research, the idea of multicomponent, one-vessel cleaning of syngas through simultaneous dedusting and adsorption is described. Data presented were obtained with the use of a pilot-scale 60 kWth fixed-bed GazEla reactor, coupled with a dry gas cleaning unit where mineral sorbents are injected into raw syngas at 500–650 °C, before dedusting at ceramic filters. The research primarily presents results of the application of four calcined sorbents, i.e., chalk (CaO), dolomite (MgO–CaO), halloysite (AlO–MgO–FeO), and kaolinite (AlO–MgO) for high-temperature (HT) adsorption of impurities contained in syngas from gasification of biomass. An emphasis on data regarding the stability of the filtration process is provided since the addition of coating and co-filtering materials is often necessary for keeping the filtration of syngas stable, in industrial applications.

High-temperature pyrolysis behavior of two different rank coals in fixed-bed and drop tube furnace reactors

2020 ◽  
Vol 93 (6) ◽  
pp. 2271-2279
Author(s):  
Kang Zhang ◽  
Peng Lu ◽  
Xutao Guo ◽  
Lijian Wang ◽  
Hongkun Lv ◽  
...  
Keyword(s):  
High Temperature ◽  
Fixed Bed ◽  
Tube Furnace ◽  
Drop Tube ◽  
Drop Tube Furnace ◽  
Pyrolysis Behavior
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