Thermally stable briquettes of coal and waste, e.g. plastic

摘要

The briquettes are made with a large content of size-reduced waste, and are to be treated by fixed bed gasification under pressure. The waste is coal, light shredded material including wood or paper, sewage sludge or slurry, and similar, mixed together. The mixt. can be considered to have a mineral content, which assures the constant melting and/or sintering properties of the briquettes during gasification in the fixed bed reactor - they are to remain hard, rather than slumping, melting or collapsing under the high temp.. The components are size reduced to a similar grading and intensively mixed, and briquetting follows. Also claimed are the prepn. procedure, the gasification process to utilise or convert the resulting briquettes, and the complete plant for briquettes.