The Safety and Economics of High Ash Anthracite Fired Mixing with Petroleum-Coke in Pulverized Coal-Fired Furnace
Petroleum-coke was fired only in CFB because of its content of high S and low volatile. It will bring environment and flame stability problem if petroleum-coke fired in pulverized coal-fired furnace. As the research of coal fire theory has been developed in last decade, low rank anthracite is fired in many pulverized coals fired furnaces without flame stability problem. Here we blend high ash anthracite with petroleum-coke as the fuel for pulverized coal-fired furnace to decrease the ash content in fuel. Experiment result had shown that mixing with petroleum-coke the combustion behavior of blending fuel were improved and ash deposition characteristic would not change compared with high ash anthracite. Using coal/petroleum-coke as the fuel for furnace can bring great benefits for environment and furnace. But S content in blend fuel must be controlled under the regulation of S content in coal and the volatile content should not decrease too low to coal fired the furnace design to avoid the environment and flame stability problems occur.
KeywordsCombustion Rate Coal Combustion Ignition Temperature Coal Particle Combustion Characteristic
Unable to display preview. Download preview PDF.
- 1.Jianyuan Chen. Study of coal ignition process and model; Ph.D thesis, 1989, HUST, WuHan. HuBei. P.R. of CHINA.Google Scholar
- 2.Hong Chen. Study of pore structure and combustion kinetics of char during raw coal burning. Ph.D thesis, 1994, HUST. WuHan HuBei. P.R. of CHINAGoogle Scholar
- 3.Richard W. Bryes. Fireside behavior of mineral impurities in fuels from marchwood 1963 to the Sheraton Palm coast 1992. Proceeding of Inorganic Transformation and Ash Deposition During Combustion. p3–71. March 10–15 1992. Palm coast. Florida. U.S.A.Google Scholar
- 5.J. R.Macdonald. Control of solid fuel slagging. Power Engineering. p 48–51. August. 1984.Google Scholar
- 6.Coal combustion and application. Progress in energy and combustion science. Vol. 10 Number 2 1984.Google Scholar
- 7.Hans Beisswenger. Application of CFB technology to fired petroleum-coke of petroleum works. Journal of Petroleum Chemical Industry of U.S.A. 1985.Google Scholar
- 8.James Sahagian. Combustion of petroleum-coke in Pyroflow CFB. Journal of Petroleum Chemical Industry of U.S.A. 1985.Google Scholar
- 9.Toshizo Ito. Long-term Stable Operation of Petroleum Coke Firing boiler retrofitted from existing oil firing. Proceeding of the Engineering Foundation Conference On Inorganic Transformation and Ash Deposition During Combustion. March 10–15, 1991. Palm Coast Florida.Google Scholar