Incineration with Heat Recovery

Incineration with Heat Recovery Heat contained in the gases produced from the incineration of solid wastes can be recovered as steam. The low-level heat remaining in the gases after heat recoveiy can also be used to preheat the combustion air, boiler makeup water, or solid-waste fuel. 

Incineration with heat recovery Energy in the form of steam None Markets for steam required proven in numerous full-scale applications air-quality regulations possibly prohibiting use... 

An Ecoprofile is an assessment of the environmental and resource impacts of a waste disposal process. This paper describes ecoprofiles for six different ways of disposing the plastic fraction in municipal solid waste -two material recycling processes that include separation of the plastic waste, material recycling without separation of the plastic waste, pyrolysis, incineration with heat recovery, and landfill. 17 refs. 

Thus, the current installed capacity for MSW-burning modular incinerators with heat recovery ( 500 tons/day) probably represents about IT, of the solid waste collected from municipalities with populations ranging from 25,000 to 100,000. (For comparison purposes, note that the total capacity for energy recovery from municipal solid waste in the United States should be roughly equivalent to about 570 of the total waste collected by 1980.)... 

Table III summarizes the basic plant operating requirements in terms of utilities, manpower, and ash disposal. Electric power consumption figures are provided for three different system designs simple incineration without heat recovery or an air pollution control device, incineration with heat recovery but no air pollution control device, and incineration with both heat recovery and air pollution control (stack gases filtered through a baghouse).

Figure 1. Mass and energy balance for an incinerator with heat recovery...

Figure 3. Economics of operating large modular refuse incinerators with heat recovery and particulate control...

Buekens, A., Schoeters, J. "W. European Experience on Small Waste fed Incinerators with Heat Recovery , Preliminary Report prepared for SRI, 1978. 

The requirements for water pollution control have been forcing a shift to concentrating spent sulfite pulping liquor by evaporation, followed by incineration with heat recovery (102). When calcium-base liquor is burned, the sulfur emerges as calcium sulfate and is not available for recycle to the pulping process. The flue gas from such furnaces in Sweden is reported to contain 0.2—0.3% sulfur dioxide, and in one Swedish mill a Bahco wet limestone scrubber is used to treat the gases (115). 

Traditional product development has aimed to manufacture products as efficiently as possible within the frame of an established product specification. Improved production equipment, working methods, and planning have reduced the direct variable labour costs to 10-20% of total manufacturing costs. This approach reaches inherent limits, however [5]. Once a product is on the market, only small modifications to the manufacturing process and to the product itself are possible. Environmental effects can be reduced by reuse, recovery/recycling, or by incineration with heat recovery, but the most desirable alternative, material reduction, is no longer available at this stage. 

Roegly, WJ., Jr., Solid Waste Utilization—Incineration with Heat Recovery, prepared for Argonne National... 

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