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RDF: Refuse Derived Fuel Pellets

RDF or Refuse derived fuel creates combustible pellets from Municipal Waste. While many companies will use the term MSWM (Municipal Solid Waste Material) interchangeably with RDF, they are not the same. In general, Municipal Solid Waste Material that is often incinerated for trash to steam projects has a much lower potential energy or caloric value.

Pelletization of municipal solid waste involves the processes of segregating, crushing, mixing high and low heat value organic waste material and solidifying it to produce fuel pellets or briquettes, also referred to as Refuse Derived Fuel (RDF) or Process Engineered Fuel (PEF). The process is essentially a method that condenses the waste or changes its physical form and enriches its organic content through removal of inorganic materials and moisture. The calorific value of RDF pellets can be around 4000 kcal/ kg depending upon the percentage of organic matter in the waste, additives and binder materials used in the process. RDF becomes one of the interesting alternatives to solve both global warming and MSWM problems. Its benefits are not only to improve world environmental quality, but also reduce local economical loss. However, due to high moisture content, low calorific value and high ash content of raw MSW, it is needed to segregate the raw MSW and produce RDF. The advantage of RDF over raw MSW is that RDF has higher calorific value and more consistency in quality.

Converting solid waste to compact burnable RDF provides an important new fuel source in a time of energy shortage; reduces cost of landfill usage by cutting the demand for it to one-tenth of the incoming waste and produces profitable by-products. RDF can be produced at a cost that provides savings to all energy users and the system is very competitive with today’s landfills, resulting in landfill extended life.

Pelletization of municipal solid waste involves the processes of segregating, crushing, mixing high and low heat value organic waste material and solidifying it to produce fuel pellets or briquettes, also referred to as Refuse Derived Fuel (RDF) or Process Engineered Fuel (PEF). The process is essentially a method that condenses the waste or changes its physical form and enriches its organic content through removal of inorganic materials and moisture. The calorific value of RDF pellets can be around 4000 kcal/ kg vs. raw MSW is around 1000 kcal/kg depending upon the percentage of organic matter in the waste, additives and binder materials used in the process.Since pelletization enriches the organic content of the waste through removal of inorganic materials and moisture, it can be very effective method for preparing an enriched fuel

RDF Pellets can be used for heating plant boilers and for the generation of electricity. They can also act as a good substitute for coal and wood for domestic and industrial purposes. The important applications of RDF are found in the following spheres: Cement kilns, RDF power plants, Coal-fired power plants, Industrial steam/heat boilers, Pellet stoves.