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.

  • [Show abstract] [Hide abstract]
    ABSTRACT: A review of up-to-date waste to energy technologies, their advances and improvements are presented in this paper. The focus is on waste incinerators under conditions of the European Union. Legislation overview, key equipment, ways of dealing with different process streams and tools for evaluating energy efficiency analysis are presented. The principles for maximum energy utilization are also formulated. A comparison of conventional and up-to-date performances of high efficiency flue gas cleaning systems illustrates the development of waste to energy technologies over the past decades.
    12/2012; 28(4-6). DOI:10.1515/revce-2012-0013
  • Source
    [Show abstract] [Hide abstract]
    ABSTRACT: Energy flow analysis and thermal degradation of municipal solid waste was carried out using differential scanning calorimetry and thermo-gravimetric analyzer at heating rates of 10 K/min, 20 K/min, 30 K/min and 40 K/min in a nitrogen atmosphere and temperatures between 308 K and 1273 K. The activation energy (Ea) is the energy barrier which must be overcome for reaction to occur. Thermal degradation behavior experiments show that the municipal solid waste is less reactive than biomass or coal with activation energy ranging between 205.9 to 260.6kJ/mol. These value are higher than typical wood activation energy which ranges between 50 and 180kJ/mol and coal with a range between 30 and 90 kJ/mol. These value of activation energy can be improved by pretreatment of municipal solid waste. 1 INTRODUCTION The generation of municipal solid waste in cities in developing countries has been in the increase due to city growth. Cities are facing a challenge in solid waste management due to complex composition of waste and poor effective waste handling methods. The challenges include such as difficult of recycling into useful material, poor management of biodegradable waste and inefficient waste management infrstructure (Henry et al., 2006, Kuo et al., 2008). The increase of this wastes may lead to environment degradation if not appropriately managed (Johari et al., 2012). Waste to energy options are better way in managing waste and solving the energy crisis. 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. This work contribute to availing the same and compare these with those from biomass and sub-bituminous coal.
    9th Regional Collaboration Conference, Entebbe; 07/2014
  • [Show abstract] [Hide abstract]
    ABSTRACT: Four configurations of a novel solar-heated biomass gasification facility and one configuration of conventional biomass gasification are analyzed through financial and policy scenarios. The purpose of this study is to determine the potential financial position for varying configurations of a novel technology, as compared to the current state-of-the-art gasification technology. Through the use of project finance and policy scenario development, we assess the baseline breakeven syngas price (normalized against natural gas prices and based upon annual feedstock consumption), the sensitivity of major cost components for the novel facilities, and the implications of policy levers on the economic feasibility of the solar facilities. Findings show that certain solar configurations may compete with conventional facilities on a straightforward economic basis. However, with renewable energy policy levers in place the solar technologies become increasingly attractive options.
    Biomass and Bioenergy 03/2015; 74. DOI:10.1016/j.biombioe.2015.01.002 · 3.41 Impact Factor

Full-text (2 Sources)

Available from
May 27, 2014