Some valuable minerals, such as lignite, are extracted through open-pit mining works. After the cessation of activity, large-scale gaps result in landscape. These gaps, also called “remaining gaps”, represent some roughest types environmental impacts. recovery and ecological restoration works required. However, it is first necessary to carry out risk assessment studies considering possible futu...

This research evaluated the hydrocarbon emission characteristics during pyrolysis of four carbonaceous additives that can be used in green sand foundries. These included a highly volatile bituminous coal, anthracite, lignite and cellulose. The samples were flash pyrolyzed in a Curie-point pyrolyzer at 920 C with a heating rate of about 3000 C/sec. This simulated the fast heating conditions that...

Miscanthus × giganteus is a giant C4 grass native to Asia. Unlike most C4 species, it is relatively cold tolerant due to adaptations across a wide range of altitudes. These grasses are characterized by high productivity and low input requirements, making them excellent candidates for bioenergy feedstock production. The aim of this study was to investigate the potential for growing Miscanthus on...

In order to obtain inexpensive Pt-free counter electrode materials for dye-sensitized solar cells and expand the application fields of low-rank coal, lignite-based Ni/C composite was prepared by low-medium temperature pyrolysis method using Huolinhe lignite as raw materials. The structure chemical components as-synthesized characterized XRD, FT-IR, TG, Raman, SEM, TEM, XPS, electrocatalytic act...

As the limiting factor for an energy storage technique from lab-scale to industrial-scale, cost means not only price of raw materials but also simplicity processing technics. In this work, oxygen functionalized carbon were obtained three representative different metamorphic-grade coals, that is, lignite, bitumite, anthracite. Oxygen functional groups like quinones, carboxylic anhydrides, and la...