Article

Energy from gasification of solid wastes

Department of Civil Engineering (DICIV), Università degli Studi di Salerno, Fisciano, Campania, Italy
Waste Management (Impact Factor: 3.16). 02/2003; 23(1):1-15. DOI: 10.1016/S0956-053X(02)00149-6
Source: PubMed

ABSTRACT Gasification technology is by no means new: in the 1850s, most of the city of London was illuminated by "town gas" produced from the gasification of coal. Nowadays, gasification is the main technology for biomass conversion to energy and an attractive alternative for the thermal treatment of solid waste. The number of different uses of gas shows the flexibility of gasification and therefore allows it to be integrated with several industrial processes, as well as power generation systems. The use of a waste-biomass energy production system in a rural community is very interesting too. This paper describes the current state of gasification technology, energy recovery systems, pre-treatments and prospective in syngas use with particular attention to the different process cycles and environmental impacts of solid wastes gasification.

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    • "Belgiorno et al. (2003) investigated the state of gasification technology, energy recovery systems, pre-treatments and prospect of syngas use with particular attention to the different process cycles and environmental impacts of solid wastes gasification. They identified gasification process offers energy recovery and reduce the emission of potential pollutants [6].Gasification with pure oxygen results in a higher quality mixture of carbon monoxide and hydrogen and virtually no nitrogen. Gasification with steam is more commonly called 'reforming' and results in a hydrogen and carbon dioxide rich 'synthetic' gas (syn-gas). "
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    • "Plasma arc gasification has also become a very viable option for waste treatment [24]. It has been studied over the years with regards to its ability to decompose compounds and break chemical bonds [25]. Plasma is also called the fourth state of matter, as it is distinctly different from solid, liquid and gaseous states. "
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    • "Cities from developing countries are facing energy crisis where as solutions to waste handling could contribute to availability of energy. Recovery of energy from waste is a problem due to diverse nature of thermal characteristics of the waste (Belgiorno et al., 2003). Some of the thermal characteristics in mention include calorific values, chemical composition, thermal degradation behavior and chemical kinetics . "
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