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Hydrogen from Waste Gasification
Summary
This review examines how gasification technology can convert waste materials, including municipal solid waste, tires, and plastic waste, into hydrogen fuel. Researchers found that hydrogen production potential varies widely depending on the feedstock, ranging from 15 to 300 grams of hydrogen per kilogram of waste. The study highlights gasification as a promising pathway for producing renewable hydrogen, though supportive regulations are needed to bring the technology to market.
Hydrogen is a versatile energy vector for a plethora of applications; nevertheless, its production from waste/residues is often overlooked. Gasification and subsequent conversion of the raw synthesis gas to hydrogen are an attractive alternative to produce renewable hydrogen. In this paper, recent developments in R&D on waste gasification (municipal solid waste, tires, plastic waste) are summarised, and an overview about suitable gasification processes is given. A literature survey indicated that a broad span of hydrogen relates to productivity depending on the feedstock, ranging from 15 to 300 g H2/kg of feedstock. Suitable gas treatment (upgrading and separation) is also covered, presenting both direct and indirect (chemical looping) concepts. Hydrogen production via gasification offers a high productivity potential. However, regulations, like frame conditions or subsidies, are necessary to bring the technology into the market.
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