Gasification Applicability of Korean Municipal Waste Derived Solid Fuel: A Comparative Study

Sang Yeop Lee,Dong Hyuk Choi,Se Won Park,Md Tanvir Alam,Gun Ho Han

doi:10.3390/pr8111375

Sang Yeop Lee, Dong Hyuk Choi + Show 3 more

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https://doi.org/10.3390/pr8111375

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Abstract

Gaining energy independence by utilizing new and renewable energy resources has become imperative for Korea. Energy recovery from Korean municipal solid waste (MSW) could be a promising option to resolve the issue, as Korean MSW is highly recyclable due to its systematic separation, collection and volume-based waste disposal system. In this study, gasification experiments were conducted on Korean municipal waste-derived solid fuel (SRF) using a fixed bed reactor by varying the equivalence ratio (ER) to assess the viability of syngas production. Experiments were also conducted on coal and biomass under similar conditions to compare the experimental results, as the gasification applicability of coal and biomass are long-established. Experimental results showed that Korean SRF could be used to recover energy in form of syngas. In particular, 50.94% cold gas efficiency and 54.66% carbon conversion ratio with a lower heating value of 12.57 MJ/Nm3 can be achieved by gasifying the SRF at 0.4 ER and 900 °C. However, compared to coal and biomass, the syngas efficiency of Korean SRF was less, which can be resolved by operating the gasification processes at high temperatures. If proper research and development activities are conducted on Korean SRF, it could be a good substitute for fossil fuels in the future.

Highlights

IntroductionKorea is known as a country that consumes 9.4 times more energy than the gross national product (GNP) and 7.5 times more energy than the United States [1]
Sawdust, fluff solid recovered fuelfuel (SRF) and coal were selected as being representative of biomass, assess the gasification applicability of Korean municipal waste-derived solid fuel (SRF) by solid waste and fossil fuels, respectively, due to their availability and operational flexibility during conducting gasification experiments under different conditions
Initiatives were taken to gasification. Basic characteristic analyses such as elemental analysis, proximate analysis, compare the experimental results with long-established gasification technologies like that of coal and heating value analysis and thermogravimetric analysis were conducted on these selected feedstocks as biomass by the conduction of similar experiments under similar conditions and through literature they play a crucial role in different thermochemical conversion processes

Summary

Introduction

Korea is known as a country that consumes 9.4 times more energy than the gross national product (GNP) and 7.5 times more energy than the United States [1]. Korea is representative of an energy resource importer due to its lack of natural resources and very low energy independence. In these situations, the utilization of new and renewable energy resources has become a necessity for. The most common types of new and renewable energy resources are solar, small hydro-power, wind power, geothermal, tidal power, biomass and waste [2]. Korea has a small land area with a 70% mountainous region, which limits the utilization of many new and renewable energy resources

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