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Torrefaction on Rice Husk, Paddy Straw and Coconut Shell To Improve Its Properties For Enhancing Gasification Efficiency

Afnan Bin Aminudin, Afnan (2009) Torrefaction on Rice Husk, Paddy Straw and Coconut Shell To Improve Its Properties For Enhancing Gasification Efficiency. Universiti Teknologi Petronas, Sri Iskandar,Tronoh,Perak. (Unpublished)

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Abstract

Shortage of fossil fuels has forcing people to find out alternatives to fulfill their needs especially in transportation, industrial sector, and residential sector. Many types of alternatives energy have been developed where hydrogen energy is part from that. Furthemore, the demand of producing this energy had arised especially during the oil crisis. One of the ways to produce hydrogen is through gasification process. However, this process always has problems which reducing its efficient. Problem like condensable tar formation and ash formation should be solved in order to make sure the amount of gas produced is significant then can meet the customer’s demand. Gasification process used biomass as its feed. Hence, the large number of biomass in Malaysia like rice husk, coconut shell and rice straw which can be found mostly at northern and east-coat states (Kedah, Perlis and Kelantan) have high potential to be developed to be used as gasification feed. However, the nature features of these biomasses like having high moisture content and moderate calorific value would contribute to another problem in gasifier like tar formation later. Moreover, highly cost may be needed to extract potential values of energy rice husks if no earlier treatement be done on it. Due to that, author has interested to do research on this process which entitled as “Torrefaction on rice husk, paddy straw, and coconut shell to improve its properties for enhancing gasification efficiency”.The purpose to enhance the efficiency is to increase the production rate of hydrogen from biomass gasification process. This project aims to develop torrefied biomass that has desired properties like lower moisture content and higher calorific value. Two parameters are being observed in the experiment which is particular sizes and torrefaction temperature. The reaction time will be constant at 1 hour and 30 minutes. Two particular sizes are studied which are 250μm and 500μm. At the same time, two different torrefaction temperatures are studied which are 240 and 280 degree Celcius. In general, the experiment results prove that the properties of samples (biomass) can be improved where has lower moisture content and also have higher calorific value. Higher torrefaction temperature (280 degree Celcius) makes more moisture being released to the air as well as gaining higher calorific value. Smaller particular size (250 μm) also contributes to higher evaporation rate of moisture content compared to samples at size 500 μm.

Item Type: Final Year Project
Subject: T Technology > TP Chemical technology
Divisions: Engineering > Chemical
Depositing User: Users 5 not found.
Date Deposited: 11 Jan 2012 12:24
Last Modified: 25 Jan 2017 09:44
URI: http://utpedia.utp.edu.my/id/eprint/811

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