Physical and Thermo-Chemical Characteristics of selected Agricultural Residues and MSW for Bio-fuels Production
Loading...
Date
2019
Authors
Journal Title
Journal ISSN
Volume Title
Publisher
Orissa University of Agriculture and Technology, Bhubaneswar
Abstract
Biomass is an organic matter produced by plants, both terrestrial (grown on land) and aquatic (grown in water) and their derivatives. It includes forest crops and residues, crops grown especially for their energy content on “energy farms” and animal manure. In India, according to IREDA, the present biomass potential is about 16000 kW and total annual biomass production is about 350 MT. These biomass remains underutilized and most of the agricultural crop residues are burnt in the field that creates environment pollution, destroys essential micro-organisms and degrades the soil fertility. Biomass can be considered as an important source of electric power generation through gasification process. Municipal solid waste includes waste generated from domestic, commercial, and construction activities. The municipal solid waste potential of India is about 1,45,626 million tones/day. This MSW creates environmental hazards and water contaminations. Their potential can be used as feedstock for renewable energy production and contributing toward solving energy crisis and environment issues. Several characteristics affect the performance of biomass fuel, including the heat value, moisture level, chemical composition, and size and density of the fuel. These characteristics can vary noticeably from fuel to fuel. In this study four local varieties of rice straw (Nabina, Tamapasara, Swarna & Nua Achharmati) and sugarcane bagasse, coconut coir and vegetable waste has been considered for characterization of the engineering properties, proximate and ultimate analysis. For engineering properties, the samples were taken in the size of 150 mm for proper thermo-chemical conversion. The experiments were conducted by using TGA and FTIR. The heating value found to be highest in rice straw variety Nabina that was 22.98 MJ/kg among all samples. Other three rice straw verities Tamapasara, Swarna, Nua Achharmati were 12.12, 14.65 and 16.02 MJ/kg respectively. The heating value of other agricultural wastes like bagasse, coconut coir, vegetable waste were 16.55, 14.56 and 12.34 MJ/kg respectively. From TGA analysis, it was found that the combustion quality of sugarcane bagasse was found to be maximum (80%) and minimum in case of coconut coir (34.68%). ASPEN PLUS software has used for purpose of the investigation of the gasification process, syngas yield and composition. Through the simulation of all selected samples, Nabina, the variety of rice straw had highest syngas compositions (42.30 % CO, 9.45 % CO2, 15.6 % H2 and 2.23% CH4).
Description
Th-5623
Keywords
null