Municipal solid waste refuse-derived fuel

Waste materials cover a diversity of products such as wood waste, used tires, waste from agricultural products such as rice husks, and municipal solid waste. Some of these waste materials are very heterogeneous while others are more uniform. Different types of waste are commonly processed using incinerators or reactors that process waste material by heat. The processed materials are commonly classified in char, liquid, and gasses. The municipal solid waste (refuse derived fuel), which is probably the most heterogeneous, is initially processed by the removal of metals, is shredded, dried, and pelletized, and only after that is it processed in heated reactors. 

Collected Municipal Solid Wastes, Refuse Derived Fuel 5000 BTU/Lb, 30-40% M, 5 Lb/Cap/Day, B Dens 12-20 Lb/CP Generated in cities - near energy need. 

Table 15.2 Comparison of Heating Values of Municipal Solid Waste with Other Wastes, Refuse-Derived Fuels, Biomass, and Fossil Fuels [4]...

Municipal Solid Waste. In the eady 1990s, the need to dispose of municipal soHd waste (MSW) ia U.S. cities has created a biofuels industry because there is Htde or no other recourse (107). Landfills and garbage dumps are being phased out ia many communities. Combustion of MSW, ie, mass-bum systems, and RDF, ie, refuse-derived fuel, has become an estabhshed waste disposal—energy recovery industry. 

Combustion of plastics waste with energy recovery is discussed as one approach to the recycling and waste management of waste plastics. Their role in municipal solid waste combustion is examined, and the importance of refuse derived fuel pellets. Facts supporting the importance of waste to energy projects are reported, and details of some projects currently examining MSW combustion with energy recovery are detailed. 

Keywords Refused Derived Fuels (RDF), Dry Stabilization Process (DSP), Municipal Solid Waste (MSW), Waste composition, Waste amount, Heating value, Emission Factor (EF)... 

In an engineering study, ThermoChem developed several cases for a refuse-derived fuel (RDF) gasifier and apphed them to five options for energy recovery. The gasifier cases were for 227 and 595 megagrams per day (Mg/d) [250 and 655 tons per day (t/d)] RDF facilities 300- and 726-Mg/d (330- and 800-1/d) municipal solid waste equivalents were based on ThermoChem s waste. The major components of the steam reformer consisted of ... 

Refuse-Derived Fuel (RDF) Fuel processed from municipal solid waste that can be in shredded, fluff or dense pellet fonns. 

MSW, municipal solid waste RDF, refuse derived fuel. 

Refuse-derived fuel i.e., the combustible fraction of municipal solid waste, from a Chicago facility. From a Chicago Metropolitan Sanitary District facility. 

In flow sheets for processing municipal solid waste (MSW), the objective is to separate the waste into useful materials, such as scrap metals, plastics, and refuse-derived fuels (RDFs). Usually size reduction is the... 

The two leading methods of generating energy from the incineration of municipal solid waste (MSW) are the mass-bum system and the refuse derived fuel (RDF) system. The mass-burn system incinerates unprocessed MSW to recover energy and the RDF system processes unprocessed MSW into a usable fuel prior to incineration. Both methods use either starved-air modular, stoker grates, rotary kiln, or fluidized-bed units for incineration. While the mass-burn system is currently more widely utilized, both systems may be used for large waste capacities. 

Another application of OEC to overcome thermal limitations is in thermal pyrolysis of municipal solid waste or refuse-derived fuel (RDF).3 The N2 in air... 

The pneumatic conveyors are suitable for refuse-derived fuel, dense and light plastics, granulated paper, milled glass, and chip wood/timber. They are not suitable for mixed municipal solid waste due to the variable characteristics of the components, organics/putrescibles due to odors, and material deposition in the rotary valves, and metal objects, except shredded aluminum. 

Refuse-Derived Fuel (RDF) - A solid fuel produced by shredding municipal solid waste (MSW). Noncombustible materials such as glass and metals are generally removed prior to making RDF. The residual material Is sold as-ls or compressed into pellets, bricks, or logs. RDF processing facilities are typically located near a source of MSW, while the RDF combustion facility can be located elsewhere. Existing RDF facilities process between 100 and 3,000 tons per day. 

There are two basic types of solid waste combustors currently in operation in the United States, mass burn facilities and refuse derived-fuel (RDF) facilities. Mass burn facilities manage over 90% of the solid waste that is combusted in the United States. Mass burn facilities are designed to handle unsorted sohd waste, whereas RDF facilities are designed to handle preprocessed trash. The ash produced by RDF facilities, where the incoming municipal solid waste stream is shredded and presorted to remove ferrous metal and in certain cases nonferrous metal prior to combustion, can be expected to have different physical and chemical properties from ash generated at mass burn facilities [115-118]. 

SVZ fixed-bed gasifier for municipal solid waste and refuse derived fuels (RDF) in mixtures with coal (24 bar operation pressure) ... 

Waste may be municipal solid waste (MSW), which has had minimal presorting, or refuse-derived fuel (RDF), which has had significant pretreatment, usually mechanical screening and shredding. Other more specific wastes, possibly including petroleum coke, may provide niche opportunities for co-utilization. 

Refuse-derived fuels from municipal solid waste (in very limited cases)... 

Municipal Solid Waste. Municipal solid waste (MSW) can be burned as received or by preparing a refuse-derived fuel (RDF) by shredding the MSW and removing ferrous and non-ferrous inorganic materials. The heating value of MSW can range from 3500 to 6500 Btu/lb (8.1 to 15.2 MJ/kg), and the moisture and ash can vary just as widely in similar or opposite directions. 

Industrial biomass waste Food, furniture, construction, and packing industries Municipal solid waste, demolition wood, refuse-derived fuel, sewage sludge, hospital waste, paper-pulp sludge, waste papers, paperboard waste, chipboard, fiberboard, plywood, wood pallets and boxes, railway sleepers, tannery waste... 

---