Results 101 to 110 of about 11,301 (248)

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, Holger Kryk, Stefan Fogel, Sebastian Felix Reinecke   +3 more
wiley   +1 more source

Research on the Mechanical Properties and Micro-Evolution Characteristics of Coal Gangue-Based Composite Cementitious Materials

Buildings
With the rapid development of industry, landfill and other environmental problems have arisen due to the coal mining and industrial solid waste generated during coal extraction and industrial production.
Gongcheng Li, Yuzhong Wang, Xun Chen, Huazhe Jiao, Guodong Zhu, Zongyu Fan, Mingfa Gao, Wenlong Xu, Feng Dong, Liuyang Yao   +9 more
doaj   +1 more source

Influence of Particle Size, Moisture, and Cloud Density on Wood Dust Ignition

Chemie Ingenieur Technik, EarlyView.
The ignition and combustion of particle clouds are strongly affected by particle interactions. This study uses spectroscopy to examine effects of particle size, water content, and cloud density. Results show ignition delay rises with larger size and density, whereas combustion duration depends mainly on water and density due to moisture‐driven ...
Matteo Giesen, Daniel Bernhardt, Michael Beckmann   +2 more
wiley   +1 more source

Global and Detailed Calculation of Tube Wall Temperature in a Process Furnace Steam Superheater

Chemie Ingenieur Technik, EarlyView.
This study presents a comparison between an iterative global model and multiple approaches to a new non‐iterative model with the purpose of predicting tube wall temperature of a superheater. The results show that the non‐iterative method achieves sufficient accuracy while improving the prediction of local temperature distribution and better ...
Anežka Michálková, Zdeněk Jegla
wiley   +1 more source

Rethinking Climate Change on the Role of Human Power Generation, Alternative Perspectives, Potential Solutions, and a Plea for Action

Chemie Ingenieur Technik, EarlyView.
All energy matters Let us broaden the discussion on solutions to climate change. Greenhouse gases have upset the delicate equilibrium of the Earth's energy balance. Consequently, all sources of heat affect the temperature of the Earth. Although the amount of additional heat generated by humans is a fraction of that produced by the sun, it is generated ...
Martin Bertau, Gerald Steiner, Tom Harwood   +2 more
wiley   +1 more source

General-purpose expasion type solid modlfication backfilling mining technology and equipment for coal mines

Meitan xuebao
Based on the green development trend and requirements of China’s coal industry, this paper analyzed the factors that coal mines consider in choosing filling mining methods and the constraints that affect the promotion of filling mining technology ...
Jiangong LIU, Jiawei ZHAO, Yang LIU, Junhui YANG, Yannan SHI, Yiying WANG, Feng CHEN   +6 more
doaj   +1 more source

Optimization of Controlled Low-Strength Material from Multi-Component Coal-Based Solid Waste

Sustainability
Recently, controlled low-strength material (CLSM) has been considered an easy-to-mix material, and the raw material is usually derived from solid waste, suggesting lower production costs. Moreover, the resource utilization of waste fosters the sustainable advancement of both society and the environment.
Tianxiang Chen, Ning Yuan, Shanhu Wang, Xinling Zhang, Chaoyang Lin, Xinyue Wu, Qibao Wang, Dongmin Wang   +7 more
openaire   +1 more source

Internal Carbon Cycles in the Steel Industry: Pathways for CO2 Management and Carbon Capture Utilization

Chemie Ingenieur Technik, EarlyView.
The steel industry accounts for about 7%‐9% of global CO2 emissions. While H2‐based direct reduction is a long‐term route, near‐term solutions are needed for existing plants. Internal carbon cycles reuse steelworks off‐gases and by‐products, enabling circular carbon use and supporting CCU integration.
Florian Haakmann, Nina Kolbe, Julian Suer, Cássia Castro Müller, Nils Jäger   +4 more
wiley   +1 more source

Prospective LCA of E‐Methanol Along the Transformation of Steel Industry

Chemie Ingenieur Technik, EarlyView.
The environmental effects of change in steel production route on e‐methanol production are analyzed as they shift from blast furnace route to direct reduction route. Specific hydrogen demand reduces, as do the avoided CO2 emissions. E‐methanol's overall carbon footprint stays in a narrow range of −1 to −1.1 kg‐CO2‐eq./kg‐methanol.
Ankur Gaikwad
wiley   +1 more source

Spatial dynamic evolution process of overburden rock mining and coal-based solid waste grouting and filling practice

Meitan kexue jishu
In the process of mining thick coal seams, the overlying rock layer will undergo a gradual dynamic evolution from local deformation to overall failure under the action of mining stress, and it is easy to form underground spaces such as in-situ goafs, low-
Ke YANG, Xiaowu FENG, Xiang HE, Lei HAN, Guojun MA, Xinyuan ZHAO, Jiqiang ZHANG, Xiang YU, Zhen LIU   +8 more
doaj   +1 more source