The main purpose of this study is to investigate the thermal stability and mechanism decomposition Mogoin gol coal, possibility liquefaction by pyrolysis thermolysis, enriching heavy liquids reduce mineral content coal improve its quality. Under purpose, was characterized proximate ultimate analysis, thermogravimetry, investigated (thermolysis pyrolysis). Thermogravimetric analysis performed us...

In order to study the change of pore structure and adsorption characteristics coking coal after high-temperature high-pressure test, from Liulin coalmine was selected for research. Both mercury injection experiments were carried out on raw isothermal experiment processing with a pressure 11 MPa temperature ranging 30 90°C. The results show that is beneficial gas adsorption, while has restrainin...

Jharia coalfield is one of the most important sources of coking coal in India. Coal mining activities in this coalfield have significantly caused mineralisation of surface and ground water; there-by adversely affecting it’s quality and utility. Several trace elements may be present in mine water released from various mining and processing operations. In this paper, an attempt has been made to a...

The catalytic properties of non-applied nickel-sulfide catalysts in the reactions hydrogenation and hydrodesulphurization coal tar from semi-coking Shubarkul field (Republic Kazakhstan) were studied to obtain data necessary for intensification resin processing technology, increasing yield improving quality resulting needle coke. As a feedstock, was used without preliminary dehydration (water co...

The coking process is considered to be a potential source of unintentionally produced persistent organic pollutants (UP-POPs). However, intensive studies on the emission of UP-POPs from the coking industry are still very scarce. Emission of polychlorinated dibenzo-p-dioxins/dibenzofurans (PCDD/Fs), dioxin-like polychlorinated biphenyls (dl-PCBs), hexachlorobenzene (HxCBz), and pentachlorobenzen...

In this study, ultraviolet (UV) and vacuum ultraviolet (VUV) photolysis were investigated for the pre-treatment and post-treatment of coking wastewater. First, 6-fold diluted raw coking wastewater was irradiated by UV and VUV. It was found that 15.9%-35.4% total organic carbon (TOC) was removed after 24 hr irradiation. The irradiated effluent could be degraded by the acclimated activated sludge...

More than 80% of ammonia (NH₃) in the steel manufacturing process wastewater is contributed from the coking wastewater, which is usually treated by biological processes. However, the NH₃ in the coking wastewater is typically too high for biological treatment due to its inhibitory concentration. Therefore, a two-stage process including a hollow fiber membrane contactor (HFMC) and a modified memb...

Introduction FCC decant oil is the primary feedstock to delayed coker to produce needle coke, a premium carbon precursor to synthetic graphite electrodes. Mesophase development during coking, determines the graphitizability of the needle coke product. Mesophase development, in turn, depends on the molecular composition of the feedstocks [1,2]. In a commercial delayed coking unit, liquid-phase c...