The hot strength of coke prepared from an acid-washed lignite by briquetting-carbonization before and after CO2 gasification was, for the first time, investigated in this work. at 1000°C was higher than measured a room temperature. resulted linear decrease with reaction time. lignite-coke showed faster during gasification, compared to conventional cokes derived caking coal or non-or slightly co...

Mycobacterium sp. strain BB1 was isolated from a former coal gasification site. It was able to utilize phenanthrene, pyrene, and fluoranthene as sole sources of carbon and energy and to degrade fluorene cometabolically. Exponential growth with solid phenanthrene, pyrene, and fluoranthene was obtained in fermentor cultures. The growth rates were 0.069, 0.056, and 0.040 h-1, respectively. Several...

Numerous studies, mostly case reports, have found that occupational exposure to coal tars or coal-tar pitches (coal-tar distillates) is associated with skin cancer, including scrotal cancer; workers in these studies have included patent-fuel (coal-briquette) workers, pitch loaders, workers in electrical trades, and optical-lens polishers (IARC 1985, 1987). A 1946 study in the United Kingdom fou...

Underground Coal Gasification (UCG) is a process of converting coal in the ground into synthetic gas that has economic value. In UCG which will be carried out prototype assisted by presence oxygen as gasification agent, this agent help burning ground. The flow rate affecting combustion temperature and effective flame from coal. highest at 5 l/min 240oC, an 3 143oC 2 135oC time l / min ie 80 min...

Coal consumption in Malaysia and Indonesia is growing at the rate of 9.7 and 4.7% per year since 2002, respectively. The increase in coal utilization usually tallies fairly well with the increase in CO2 emission. The present study attempts at predicting the emissions of CO2 from coal fired power plants from 2005 until 2020. The paper also analyzes the potential of carbon capture (CC) program as...

Integrated Gasification Combined Cycle (IGCC) system using coal gasification is an important approach for future energy options. This work focuses on understading the system operation and optimizing it in the presence of uncertain operating conditions using ASPEN Plus and CAPE-OPEN compliant stochastic simulation and multiobjective optimization capabilities developed by Vishwamitra Research Ins...

Gasification is a thermo-chemical process to convert carbon-based compounds such as biomass and coal into a gaseous fuel. Among the various types of gasification methods, fluidized bed gasification is one which is considered as more efficient method than others as biomass is fluidized in a mixture of air/oxygen and steam. In the present study, a comprehensive steady state process model has been...

Abstract The goal of the study is to investigate impact adding steam as a gasification agent for co-gasification biomass and coal. Study has been performed with ASPEN PLUS simulation, confirmed by experimental findings. coal ratio 60% was gasified at an equivalent 0.29 0.35. addition much 0%, 25%, 50%, 75%, 100% each equivalence difference. findings demonstrate that best quality fuel gasses suc...

INTRODUCTION The acid rain provisions of the 1990 Clean Air Act Amendments (CAAA) provide new incentives for the development of power generation technology with low SO 2 emissions. Detailed evaluations of possible NO x and air toxics emission limits also are required by the CAAA in the next few years. Furthermore, reauthorization of other key environmental legislation, such as the Clean Water A...