Pecologix Political Ecology Blotter

A novel method to increase the tar yield through an integrated process of coal pyrolysis with CO2 reforming of methane by dielectric barrier discharge plasma was put forward. The pyrolysis of Shenmu (SM) subbituminous coal was carried out under different atmospheres, including N2, H2, and different plasmas of H2, CH4, CH4/H2, CO2/H2, and CH4/CO2/H2 (1/1/2, [...]

The growth and on-site bioremediation potential of an isolated thermal- and CO2-tolerant mutant strain, Chlorella sp. MTF-7, were investigated. The Chlorella sp. MTF-7 cultures were directly aerated with the flue gas generated from coke oven of a steel plant. The biomass concentration, growth rate and lipid content of Chlorella sp. MTF-7 cultured in an outdoor [...]

A set of 13 US based experts in post-combustion and oxy-fuel combustion CO2 capture systems responded to an extensive questionnaire asking their views on the present status and future expected performance and costs for amine-based, chilled ammonia, and oxy-combustion retrofits of coal-fired power plants. This paper presents the experts’ responses for technology maturity, ideal plant [...]

We investigate the economics of coal-to-liquid (CTL) conversion, a polygeneration technology that produces liquid fuels, chemicals, and electricity by coal gasification and Fischer–Tropsch process. CTL is more expensive than extant technologies when producing the same bundle of output. In addition, the significant carbon footprint of CTL may raise environmental concerns. However, as petroleum prices rise, [...]

Birth defects are examined in mountaintop coal mining areas compared to other coal mining areas and non-mining areas of central Appalachia. The study hypothesis is that higher birth-defect rates are present in mountaintop mining areas. National Center for Health Statistics natality files were used to analyze 1996–2003 live births in four Central Appalachian states (N=1,889,071). [...]

Company officials, who plan an announcement on Thursday, said they were dropping the larger, $668 million project because they did not believe state regulators would let the company recover its costs by charging customers, thus leaving it no compelling regulatory or business reason to continue the program.The federal Department of Energy had pledged to cover [...]

Fly ash is the waste product of burning coal that is comprised mainly of silica, alumina, iron, and calcium. Fly ash is often combined with cement as an additive, but only up to a certain percentage of concrete may be fly ash.Carolyn Dry has developed a method of fabricating building panels and insulation out of [...]