نتایج جستجو برای: bituminous coal

تعداد نتایج: 32706  

Journal: :Applied microbiology 1953
W W LEATHEN S A BRALEY L D MCINTYRE

I This contribution is one of a series of papers by the Multiple Fellowship on Mine Acid Control sustained at Mellon Institute by the Sanitary Water Board, Department of Health, Commonwealth of Pennsylvania. catalyst. Indeed, Carpeniter and Heirndon (1933) suggested that bacterial activity by some sulfur oxidizing organism might explain, in part, the high acidities usually encountered in bitumi...

2005
WILLIAM W. LEATHEN S. A. BRALEY

I This contribution is one of a series of papers by the Multiple Fellowship on Mine Acid Control sustained at Mellon Institute by the Sanitary Water Board, Department of Health, Commonwealth of Pennsylvania. catalyst. Indeed, Carpeniter and Heirndon (1933) suggested that bacterial activity by some sulfur oxidizing organism might explain, in part, the high acidities usually encountered in bitumi...

Journal: :Journal of hazardous materials 2009
Pei-Sheng Li Yi Hu Wan Yu Ya-Nan Yue Qiao Xu Song Hu Nian-Su Hu Jun Yang

X-ray photoelectron spectroscopy was used to investigate the characteristics and evolution of sulfur (S) in mixtures of bituminous coal and sewage sludge (SS) and their chars during isothermal combustion. Five groups of mixtures with SS content of 0%, 10%, 20%, 30% and 100%, were examined at different burn-off ratios (beta) of 0, 30%, 50%, 70% and 100%. The S in the coal mainly exist as the for...

2014
George S. Downward Wei Hu Nat Rothman Boris Reiss Guoping Wu Fusheng Wei Robert S. Chapman Lutzen Portengen Lan Qing Roel Vermeulen

Exposure to polycyclic aromatic hydrocarbons (PAHs) from burning "smoky" (bituminous) coal has been implicated as a cause of the high lung cancer incidence in the counties of Xuanwei and Fuyuan, China. Little is known about variations in PAH exposure from throughout the region nor how fuel source and stove design affects exposure. Indoor and personal PAH exposure resulting from solid fuel combu...

Journal: :Energy & Fuels 2021

Methane adsorption properties of coal are essential for coalbed methane (CBM) extraction and clean energy utilization. However, the effect nanopores on CH4 in high volatile bituminous...

Journal: :British journal of industrial medicine 1979
J G Bennett J A Dick Y S Kaplan P A Shand D H Shennan D J Thomas J S Washington

As part of the Periodic X-ray Scheme of the National Coal Board (NCB), a comparison is made between the previous and new films of all miners who were face-workers on the former occasion, five years earlier. This assessment is made by distributing the films randomly to all the NCB readers. This paper compares the rank of coal mined in each colliery with each colliery's percentage prevalence of p...

2013
S. Beitler M. Holm T. Arndt A. Mozar M. Junker C. Bohn

The availability of renewable energy does not meet the demands of consumption. Hence, fossil fuels will continue to be an important energy source, and coal promises to cover the requirements for the coming decades. Because of its high energy content, deep lying bituminous coal and anthracite are important for energy generation. One trend in the future of coal mining is thin seam mining, because...

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