Gasification technology wastes

Hooper, M., Waste coal to ultra clean fuels applying the shell coal gasification process. In Gasification Technologies Conference, www.gasification.org/Presentations/2003.htm (accessed May 11, 2007), San Francisco, CA, 12-15 October, 2003. 

Throughout the 1980s, researchers and industry came to recognize some of the environmental benefits of gasification technology. More restrictive and stringent environmental standards aimed at controlling power plant emissions, and domestic and industrial waste landfills, and an increased... 

Vick, S. C., Slagging Gasification Injection Technology for Industrial Waste Elimination, 1996 Gasification Technology Conference, San Francisco, CA, October 1996. 

Gasification technologies offer the potential of clean and efficient energy. The technologies enable the production of synthetic gas from low or negative-value carbon-based feedstocks such as coal, petroleum coke, high sulfur fuel oil, materials that would otherwise be disposed as waste, and biomass. The gas can be used in place of natural gas to generate electricity, or as a basic raw material to produce chemicals and liquid fuels. 

Rich, J.W., et ah, WMPI Waste Coal to Clean Liquid Euels, paper presented at the Proceedings of Gasification Technologies 2003, San Erancisco, October 12-15, 2003. 

The different pyrolysis and gasification technologies, selected in relation to the waste input, generate different kinds of products that will have to be upgraded into substitution fuels. The solid fuel could be upgraded by mechanical separation of metals and minerals in order to produce a cheap feedstock to a classical gasifier. Moreover, selected additions during pyrolysis could entrap pollutants such as chlorine and heavy metals [2,3,63,64]. 

T. Malkow, Novel and innovative pyrolysis and gasification technologies for energy efficient and environmentally sonnd MSW disposal. Waste Management, 24, 53-79 (2004). 

This overview reports on the progress achieved over the past five years in thermochemical gasification of biomass and waste recovered fuels. The status of all major projects is reviewed while new trends are briefly presented. The paper concludes with recommendations for fumre R D needs and demonstration requirements while attempting to present a strategy for the commercialisation of gasification technologies. 

The benefits of a co-gasification technology involving coal and biomass include the use of a reliable coal supply with gate-fee waste and biomass which allows the economies of scale from a larger plant than could be supplied just with waste and biomass. 

The technology of co-gasification of waste/biomass with coal can result in a very clean power plant using a range of fuels. In addition, the use of coal allows economies of scale and reliability of fuel supply. There are also considerable economic and permitting challenges in producing a financially attractive project. 

See also Biofuels and Synthetic Fuels Coal Gasification Hazardous-Waste Disposal Hydroelectric Power Plants Industrial Pollution Control Petroleum Extraction and Processing Steam Energy Technology Wind Power Technologies. 

This section summarizes the important environmental aspects of coal gasification technology, emphasizing emission sources, emission limits, and operating data for all three areas of concern air, water, and solid waste. A discussion of the environmental advantages of coal gasification over direct coal combustion also appears. In addition, the special provisions of the Clean Air Act Amendments of 1990 which affect coal gasification are addressed. 

Rich, J.W.J., Hoppe, R., Choi, G.N., Heimekes, R.J., Heydenrich, R., Hooper, M., and Radtke, K. (2003) WMPI - waste coal to clean liquid fuels. Proceedings of the Gasification Technologies Conference, www.gasification.oig. 

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