M.: Technology status review of waste/biomass cogasification with coal

Coal might be co-gasified with waste or biomass for environmental, technical or commercial reasons. It allows larger, more efficient plants than those sized for the biomass grown or waste arisings within a reasonable transport distance; specific operating costs are likely to be lower; and, fuel supply security is assured. This review paper assesses the current status of co-gasification technologies and quantifies the potential future demand for such plant. It aims to identify and prioritise areas where further R&D activities need to be focused to enhance the commercial opportunities for these technologies. The paper contains: • A survey of the market potential for co-gasification having regard to influences such as national and international environmental legislation, energy policies, targets for sustainable development, and public opinion. • An objective assessment of the current status of co-gasification and supporting technologies world-wide, including associated gas clean-up and utilisation technologies. • A critical assessment of the strengths and shortcomings of existing technologies in relation to commercial, or near-commercial needs and information on manufacturers. • Suggestions for R&D and identification of other measures which would improve market opportunities for co-gasification, paying particular attention to UK stakeholders