High-resolution seismic reflection methods were instrumental in characterizing a coalbed methane prospect estimated to have the potential to produce sufficient methane to satisfy the municipal needs of rural Fort Yukon, Alaska. Reflections with upper corner frequencies over 200 Hz and dominant frequencies over 150 Hz were recorded sitewide. Over a dozen uniquely distinguishable reflections are ...

In the entrained-flow gasifiers used in integrated gasification combined cycle (IGCC) plants, the majority of mineral matter transforms to liquid slag on the wall of the gasifier and flows out the bottom. However, a small fraction of the mineral matter is entrained (as fly ash) with the raw syngas out of the gasifier to downstream processing. This molten/sticky fly ash could cause fouling of th...

Coal fires are a common and serious problem in most coal-bearing countries. Thus, it is very important to monitor changes in coal fires. Remote sensing provides a useful technique for investigating coal fields at a large scale and for detecting coal fires. In this OPEN ACCESS Remote Sens. 2015, 7 3089 study, the spreading direction of a coal fire in the Wuda Coal Field (WCF), northwest China, w...

Abstract Gasification of coal is a cost-effective and sustainable technology to produce syngas hydrogen with integrated carbon capture storage system. This study investigates the gasification characteristics Barapukurian bituminous (BBC) char under dioxide (CO 2 ) steam atmosphere using thermogravimetric analyser (TGA). The was prepared through rapid pyrolysis process in high temperature entrai...

Coal fires, including both underground and coal waste pile fires, result in large losses of coal resources and emit considerable amounts of greenhouse gases. To estimate the annual intensity of greenhouse gas emissions and the loss of coal resources, estimating the annual loss from fire-influenced coal seams is a feasible approach. This study assumes that the primary cause of coal volume loss i...

Sodium in the coals of West China has received persistent attention due to its high contents and severe pollutions’ problems during coal utilization. A total seven drill samples Jurassic from Tatuo coalfield, Qinghai Province, were collected analysed using optical microscopy, scanning electron microscopy conjunction with energy-dispersive X-ray spectrometry, powder diffraction, inductively coup...

One of the options for reducing harmful emissions in production heat energy is use biomass, including combination with industrial waste (for instance, coal and coke dust). Recent studies demonstrate that a mix biomass makes it possible to obtain bio-coal briquette better characteristics, which motivating factor search alternative sources from local agricultural waste. The aim this research stud...