Municipal solid waste treatment engineering
Advanced Technology of Heat and Power Generation Based on Waste Pyrolysis and Gasification
Technical Principle
The pyrolysis and gasification incinerator, called the third generation waste dispose technology, is a process changing wastes into combustible and recyclable solid residues in an enclosed and oxygen-deficient environ- ment with high temperature and pressure. The combustible gas obtained after pyrolysis can combust at a high temperature and then realizes power generation and heat supply through a steam generator system. The inorganic components in the waste form glassy residues after be- ing melted and hardened at an extraordinarily high temperature and the glassy residues can be used as road paving materials or building materi- als. All the water generated in the process is purified and recycled. The gases, solids and water generated in the whole process are all recyclable after treatment, so the emissions after waste treatment are reduced greatly. There is no fly ash during waste treatment; there is no wastewater to dis- charge, solids or ash residues to landfill after waste treatment.All the mac- romolecular organic matters during pyrolysis are broken into micromolec- ular combustible gas and combusted at an extraordinarily high tempera- ture of 1700℃. The conditions for dioxin generation does not exist during the process; the valued metals in waste are not oxidized and such metals as Cu and Fe do not form catalysts promoting dioxin generation.
Technical Process
Technical Equipment
Technical Feature
▋Treating municipal and industrial hazardous wastes
▋Lower operation cost
▋Substantial heat for recycling
▋Residues (accounting for 3% - 5% of the original volume) for road paving, building construction, etc.
▋Most of solid wastes and liquid wastes can be treated
▋Emission standard compliant with the hazardous waste standard of the EU, in line with or higher than all the existing emission standards
Technical Advantage
▋High energy conversion efficiency(heat utilization rate up to 60 % to 80 % through heat and power generation)
▋No secondary pollution caused by dioxins, fly ash and ash residues, small environmental impact
▋Suitable for various wastes, regardless of the heat value range
▋Suitable for small-scale production and highly flexible with modular boiler design for different needs
▋Simple structure, easy maintenance and low operation cost