Results 41 to 50 of about 4,844 (234)
Geofluids, 2022 The fractured limestone aquifers under coal seams bring great threat to coal production, and grouting engineering before mining is usually used to seal the fractures and prevent water inrushes.
Jianbo Li, Yanchun Xu
doaj +1 more source
Potassium hydroxide activation of microalgal biochar for improved adsorption efficiency
Biofuels, Bioproducts and Biorefining, EarlyView.Abstract Activated carbon was prepared from Chlorella by carbonization and potassium hydroxide activation, and its structural properties and methylene blue (MB) adsorption performance were evaluated. Raw Chlorella exhibited an adsorption capacity of 287.2 mg g−1, which decreased to 214.8 mg g−1 after carbonization.
Keito Kubota +3 more
wiley +1 more source
Beyond Furnaces: Harnessing In Situ Joule Heating for Efficient C1 Catalysis
Carbon Energy, EarlyView.Joule‐heated catalysis directly converts electrical energy into localized heat within conductive catalysts, overcoming the heat‐transfer limitations of conventional furnaces. This review summarizes recent advances in C1 molecule conversion, including CO2 methanation, reforming for hydrogen production, and HCHO/CO oxidation, while highlighting ...
Xue Kong +8 more
wiley +1 more source
Energy Balancing of Electrochemical Alternatives to the Solvay Process
Chemie Ingenieur Technik, EarlyView.To overcome the CaCl2 and CO2 emissions custom to the conventional Solvay process in soda ash production, electrochemically based alternatives were investigated. In particular, the mass‐ and energy balances for chlor‐alkali electrolysis and bipolar electrodialysis‐based processes are discussed comprehensively in the presented work.
Tom Wenzel +3 more
wiley +1 more source
Clathrate hydrate crystallization
The Canadian Journal of Chemical Engineering, EarlyView.Abstract Clathrate hydrate crystallization has been an area of interest to chemical engineers from the point of view of crystal structure, thermophysical properties, phase equilibria, kinetics, industrial applications, and environmental (climate change) implications.
Peter Englezos
wiley +1 more source
Study on mechanical properties of polymer cement slurry-coal interface transition zone
Meikuang Anquan, 2021 Advanced deep hole grouting reinforcement technology is proposed. The effects of VAE emulsion on cement-based materials were studied. The effects of VAE emulsion on the bonding strength between cement based materials and coal and the compressive strength
LIANG Hualei +5 more
doaj +1 more source
Combustion of pipelineable coal-water slurries
, 1991 The use of liquids or fluids to transport coal through pipelines is not new, nor is the application of coal liquid slurries as fuels in industrial combustion systems. However, it does appear that there are a number of conflicting areas which preclude coals from performing well in a pipeline transportation mode and as a coal-liquid fuel (CLF).
H Whaley +3 more
openaire +1 more source
Deep Underground Science and Engineering, EarlyView.Aiming at the scientific frontiers of in situ fluidized mining of deep resources, a deep coal fluidized pipeline lifting system based on hydraulic conveying has been proposed. To solve the issue of particle sedimentation of large particles in horizontal connection sections, a solution involving the installation of guide vane‐type swirlers in the ...
Jiusheng Bao +5 more
wiley +1 more source
Ukrainian experience of brown coal treatment to coal water slurry
, 2013 Показано принципову можливість та перспективність застосування у вітчизняних умовах технології переробки бурого вугілля "hot water drying".
Світлий, Юрій Герасимович +2 more
core +2 more sources
Advances in Civil EngineeringUnreasonable treatment of coal-based solid waste and coal mining damage are important factors that cause negative environmental effects. Overburden isolated grouting, a green mining method, can realize solid waste emission reduction and coal mine ...
Chengwei Ma +3 more
doaj +1 more source