Results 21 to 30 of about 4,338 (196)

Fractionation of coal through organo-separative refining for enhancing its potential for the CO2-gasification

International Journal of Coal Science & Technology, 2020
Coal gasification has already been extensively studied earlier under varying conditions of steam, CO2, O2, inert conditions. Belbaid coal and its e, N and NMP-DETA SCC products recovered through organo-refining under milder ambient pressure conditions ...
Heena Dhawan, Rohit Kumar, Sreedevi Upadhyayula, K. K. Pant, D. K. Sharma   +4 more
doaj   +1 more source

Study on the slurry properties of Xinjiang Zhundong coal water slurry controlled by particles size distribution

Meitan xuebao
One of the most important technologies for the effective and clean use of coal is gasification. Currently, one of the most advanced gasification technologies being employed extensively is large-scale water-coal slurry entrained flow gasification.
Jiyuan CHEN, Hui ZHAO, Jianliang XU, Mei ZHONG, Sai XIONG, Zhenghua DAI, Haifeng LIU   +6 more
doaj   +1 more source

The Chemiluminescence and Structure Properties of Normal/Inverse Diffusion Flames

Journal of Spectroscopy, 2013
The flame emission spectrometry was applied to detect the distribution of excited radicals in two types CH4/O2 coflow jet diffusion flames (normal and inverse diffusion flames).
Ting Zhang, Qinghua Guo, Xudong Song, Zhijie Zhou, Guangsuo Yu   +4 more
doaj   +1 more source

Coal char characteristics variation in the gasification process and its influencing factors

Energy Exploration & Exploitation, 2020
Underground coal gasification is a burgeoning coal exploitation technique that coal is directly converted into gaseous fuel by controlled combustion. In this paper, the gasification experiments of Inner Mongolia lignite, Xinjiang subbituminous coal, and ...
Zhenyong Yin, Hao Xu, Yanpen Chen, Tiantian Zhao   +3 more
doaj   +1 more source

Preparation and Properties of High Water Filling Material for Coal Gasification Slag

Meikuang Anquan, 2020
In order to solve the collapse problem of underground coal gasification and reduce the dissolution of heavy metal cadmium from underground coal gasification slag, the high water filling material of coal gasification slag was prepared by the solution ...
XU Yang, XU Zaigang, XIE Hongfei, LI Cuiqin, CAO Yang, CHEN Qianlin
doaj   +1 more source

Highly Efficient Photocatalytic Hydrogen on CoS/TiO2 Photocatalysts from Aqueous Methanol Solution

International Journal of Photoenergy, 2018
The photocatalyzed water splitting reaction in aqueous methanol solution is an efficient preparation method for hydrogen and methanal under mild conditions.
Yu Niu, Fuying Li, Kai Yang, Qiyou Wu, Peijing Xu, Renzhang Wang   +5 more
doaj   +1 more source

Technology and engineering practice of self-flowing filling and subsidence reduction of fly ash matrix in valley mountain area

Meitan kexue jishu
Filling mining is a technology that can curb land subsidence, efficiently dispose of industrial solid waste, and quickly liberate the “three underground” coal resources.
Maoping ZHAO, Zhu WU
doaj   +1 more source

Petrographic Characteristics of Coal Gasification and Combustion by-Products from High Volatile Bituminous Coal

Energies, 2020
The coal was gasified in a fluidized bed reactor with CO2 as a gasifying agent at 889–980 °C. The coal and gasification residue produced during gasification was burned at temperatures up to 900 °C.
Barbara Bielowicz
doaj   +1 more source

Prediction model of thermal conductivity of coal-water slurry based on coal particle-bonded water composite phase

Meitan xuebao
Coal-water slurry gasification is one of advanced coal gasification technologies. The improvement on the efficiency of coal-water slurry gasification is helpful to promote the clean and efficient utilization of coal.
Haifeng JIANG, Huachi ZHANG, Hui ZHAO, Jianliang XU, Qinfeng LIANG, Weifeng LI, Haifeng LIU   +6 more
doaj   +1 more source

Hydrothermal Humification of Biomass for Circular Carbon Management in Sustainable Agro‐Ecosystems

Advanced Science, EarlyView.
This article provides a comprehensive overview of biomass hydrothermal humification for building sustainable agro‐ecosystems. It examines the chemical transformation mechanisms and the functional benefits of the produced humic acids in soil remediation.
Ziyun Liu, Zonglu Yao, Yuanhui Zhang, Huiyan Zhang, Lixin Zhao   +4 more
wiley   +1 more source