Results 51 to 60 of about 11,301 (248)

Experimental Study on the Preparation of Paste Filling Materials from Coal-Based Solid Wastes

Materials
To reduce the cost of coal mine filling materials, a novel composite cementitious material was developed by utilizing coal-based solid waste materials, including fly ash, desulfurized gypsum, and carbide slag, along with cement and water as raw materials.
Chaowen Hu, Xiaojie Yang, Feng Zhang, Bo Pan, Ruifeng Huang, Bing Hu, Yongyuan Li, Lei Zhang, Bingshan Wang, Jianxun Gao, Huifeng Wang, Yun Yu   +11 more
openaire   +2 more sources

Aquifer structure-controlled water-conservative coal mining technology based on coordinated mineralization of solid-liquid-gaseous three waste

Meitan xuebao
The solid waste (coal-based solid waste), liquid waste (mine water), and gaseous waste (power plant flue gas) generated during coal mining and utilization pose significant ecological challenges.
Liqiang MA, Kunpeng YU, NGO Ichhuy, Zhiyang ZHAO, Jiangtao ZHAI, Yonghui WU, Chengkun PENG, Ruizhi YANG   +7 more
doaj   +1 more source

Embedding Chemistry and Pharmacy Into Sustainability

Angewandte Chemie International Edition, EarlyView.
Chemistry and pharmacy provide products and processes that are indispensable for our high living standard. To understand their relationship with sustainability is important to allow them to contribute to sustainability in a sustainable manner. An integrated overview of green, circular, and sustainable chemistry and pharmacy is given and how they have t
Klaus Kümmerer
wiley   +1 more source

Switching Coal-Fired Thermal Power Plant to Composite Fuel for Recovering Industrial and Municipal Waste: Combustion Characteristics, Emissions, and Economic Effect

Energies, 2020
Combustion characteristics were studied experimentally for single droplets of fuel slurries based on wet coal processing waste with municipal solid waste components (cardboard, plastic, rubber, and wood) and used turbine oil.
Dmitrii Glushkov, Geniy Kuznetsov, Kristina Paushkina   +2 more
doaj   +1 more source

Study on the suspending mechanism of gangue particle in coal-based solid waste slurry

Alexandria Engineering Journal
In China's coal mine backfill mining projects, certain mines demonstrate an extensive filling distance that exceeds 3000 m. However, there are few researches concerning the theoretical underpinnings for slurry long-distance pipeline transportation. Gangue particles suspending in filling slurry is the prerequisite for successful long-distance pipeline ...
Tao Li, Xuexi Chen, Zijian Liu, Wei Jiang, Heng Min   +4 more
openaire   +2 more sources

New way for green and low-carbon development of coal industry under the target of “daul-carbon”

Meitan xuebao
Under the background of “dual-carbon” goal and current technological conditions, coal, waste and carbon constitute an impossible triangle in the coal industry which severely constrains its green, low-carbon, and sustainable development.
Shuangming WANG, Lang LIU, Mengbo ZHU, Yanjun SHEN, Qingmin SHI, Qiang SUN, Zhiyu FANG, Shishan RUAN, Wei HE, Pan YANG, Jianyou WANG   +10 more
doaj   +1 more source

Study on proportion optimization of coal-based solid wastes filling materials

矿业科学学报, 2019
The aim of this study is to prepare a low cost and high strength filling material.Coal gangue is aggregate.Fly ash,desulfurization gypsum and silicium-calcium slag are cementing materials.The uniaxial compressive strength,slump and slump flow of the specimen were measured to investigate the mechanical properties and the influence of each component.The ...
Tang Yuesong, Zhang Lingfei, LÜ Huayong
openaire   +1 more source

Thermal Calculations for Co‐Firing of Hydrogen/Ammonia and Coal in 660‐MW Coal‐Fired Boilers

Asia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT To achieve a clean energy transition under the dual carbon goals, blending hydrogen/ammonia into pulverized coal boilers represents a key technological pathway. Different hydrogen/ammonia co‐firing ratios (5%–50%) are investigated for their impact on the thermodynamic characteristics of 660‐MW supercritical boiler at 100% and 20% boiler ...
Yaodong Da, Nana Hou, Weipeng Wang, Yongqiang Chang, Xin Liu, Feng Pan, Defu Che, Lei Deng   +7 more
wiley   +1 more source

Effect of Mine Water Environment on Durability of Solid Backfilling Based on Carbonated Coal-Based Waste

ACS Omega
The durability of solid backfilling based on carbonated coal-based waste (CCBW) under mine water environments is critical for its engineering feasibility. This study investigates the deterioration mechanisms of CCBW exposed to acid solution (Acid W), alkaline solution (Alkaline W), and mine water (Mine W) through hydrochemical analysis, XRD, and SEM ...
Zhishang Zhang, Liqiang Ma, Ichhuy Ngo, Chengkun Peng, Jiangtao Zhai, Zezhou Guo   +5 more
openaire   +3 more sources

Advancements in CO2 Capture Technologies: A Review of Amine Absorption and Alternative Methods for Post‐Combustion Integration

Asia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT Carbon capture technologies are poised to become one of the primary focuses regarding the achievement of net‐zero emissions by the year 2050. In these technologies, particular attention is given to post‐combustion CO2 capture, which is more easily implemented at existing power stations and other industries.
Satyajit Mukherjee, Ashish Kumar, Mayurkumar P. Patil, Rohit B. Meshram   +3 more
wiley   +1 more source