Bitte wählen Sie ihr Lieferland und ihre Kundengruppe
An environmentally compatible combustion of coal in cogeneration plants requires the development and use of low-cost methods complying with the principles of air/water pollution abatement as well as with the regulations of waste management. Efforts which on a world-wide scale have for some years been going into the testing of fluidized-bed combustion have proved it to be a technology promising to fulfil above requirements. The study summarizes the present knowledge concerning the environmental compatibility of fluidized-bed combustion systems. It points out the economic conditions allowing to evaluate the technology's maturity and feasible uses and evaluates stationary fluidized-bed combustion emissions, quasi-stationary fluidized-bed combustion emissions (thorough recirculation of fly ashes), circulating fluidized-bed combustion, pressurized fluidized-bed combustion as well as different fuels with high-grade hard coal and inert coal as the most important ones. With low-level emissions and residuals circulating fluidized-bed combustion systems are at present considered the most appropriate ones for medium-scale industrial and municipal uses. (ERA citation 14:005967)