Thermochemical biomass gasification—a review of the current status of the technology
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"Thermochemical biomass gasification..." refers background or methods in this paper
...CO, H2, CO2 and H2O are used to produce methanol using methanol synthesis reactions in the temperature range of 220 to 300 °C and pressures of 50 to 100 bars using Cu/ZnO catalysts (Equations 11 and 12) [12]....
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...Hot gas cleaning does not seem very beneficial for FT process because this process operates at lower temperature (200 °C) [12,91]....
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...But the high alkali contents in biomass, like sodium and potassium, cause slagging and fouling problems in gasification equipment [12]....
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...In the case of an indirectly heated gasifier, biomass or ungasified char is combusted in a separate chamber and heat exchanger tubes conduct the heat from the combustion chamber to the gasification chamber [12]....
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...Without a catalyst, the temperature required for tar cracking is above 850 °C which reduces efficiency, causes material problems and produces soot [12]....
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Additional excerpts
...NOx and SOx emissions [9,70,71]....
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1,352 citations
"Thermochemical biomass gasification..." refers background or methods in this paper
...Various gasifier designs, such as secondary injection of air or oxygen into the gasifier and two-stage gasification systems, also can result in lower tar contents [56]....
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...Devi reviewed the methods for removing tar from syngas, with a focus on primary tar removal methodologies [56]....
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