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High temperature filter elements for use in biomass gasification

28th January 2014


Porvair Filtration Group has expanded its range of high temperature filters with the introduction of metallic filter elements optimised for biomass gasification.

High temperature filtration in the biomass gasification process is a demanding application.  

The efficiency of the thermochemical conversion process and the subsequent emission control are highly important areas in the development of environmentally sound and sustainable technology. Both are highly important for biomass combustion and gasification plant design, operation and economy.

Biomass gasification processes are characterised by the use of increasingly higher temperatures and a contaminant that in some ways is more challenging due to its inherent cohesivity and adhesivity making it more difficult to be removed as a filter cake during in situ cleaning.  

Proprietary metallic filter material developments by Porvair Filtration Group have permitted these higher temperature duties to be considered and changes to the Pulsejet design now enable biomass gasification filter cakes to be removed more effectively thus ensuring continuous on-service performance.

Biomass gasification involves incomplete combustion of biomass resulting in production of combustible gases consisting of carbon monoxide (CO), hydrogen (H2) and traces of methane (CH4). This mixture is called producer gas. Producer gas can be used to run internal combustion engines (both compression and spark ignition), and can be used as a substitute for furnace oil in direct heat applications. It can also  be used to produce, in an economically viable way, methanol – an extremely attractive chemical which is useful both as fuel for heat engines as well as chemical feedstock for industries.

Since any biomass material can undergo gasification, this process is more attractive than ethanol production or biogas where only selected biomass materials can produce the fuel.

For more information, visit www.porvairfiltration.com







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