Results 61 to 70 of about 35,746 (264)

Distribution of minor metallic elements within waste incineration bottom ashes defined by WDX/EDX spectrometry [PDF]

, 2018
A number of metallic elements are inherited from waste during thermal treatment and concentrated in the incineration residues. Because the major part of the incineration residue mass are bottom ashes (BAs), their study is of great importance from the ...
Kasina, Monika, Kowalski, Piotr, Michalik, Marek   +2 more
core   +1 more source

Potassium Migration of Chestnut Shell Ashes Under Oxidizing Atmosphere and Its Modification Mechanism by Additives

Asia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT Biomass energy plays a critical role in alleviating environmental pressures. However, its relatively high content of alkali metals (especially for potassium) would cause ash‐related issues during combustion. To mitigate these issues, the potassium migration behaviors during chestnut shell (CS) conversion and the modification mechanisms of ...
Meijie Zhou, Weijie Guo, Fenghai Li, Xuefei Liu, Ziqiang Yang, Mingjie Ma, Yitian Fang   +6 more
wiley   +1 more source

Experimental Study on Strength Development and Engineering Performance of Coal-Based Solid Waste Paste Filling Material

Metals, 2022
To explore the strength development characteristics and engineering performance of different coal-based solid waste filling materials cemented into filling body, coal gangue was used as coarse material, fly ash, desulfurization gypsum, gasification slag,
Jiqiang Zhang, Ke Yang, Xiang He, Zhen Wei, Xinyuan Zhao, Juejing Fang   +5 more
doaj   +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

Durability performance of Green Concrete Incorporating Various Wastes: A Review [PDF]

, 2019
The present manuscript stands for the review on the topic of durability attribute of concretes developed by means of green conception with incorporation of a variety of solid industrial waste slag from Ground Granulated Blast Furnace, silica fume, rice ...
LUHAR, Ismail, LUHAR, Salmabanu
core  

Carbon emission assessment of tunnel infrastructures: From construction to operation

Deep Underground Science and Engineering, EarlyView.
This study develops a lifecycle carbon accounting framework for tunnel infrastructures, covering design, construction, operation, maintenance, and dismantling. Applied to a subsea tunnel case, the framework reveals the carbon emission distribution among four typical tunnel types and highlights potential carbon offset methods for low‐carbon tunnel ...
Luyuan Long, Wout Broere, Xuehui Zhang, Tian Xia, Richard de Nijs   +4 more
wiley   +1 more source

Reduction of copper slag with the use of carbon granulates [PDF]

, 2014
The investigation results on the reduction of slag from fl ash smelting furnace and the use of carbon granulates obtained from fi ne-grained waste materials of both the coal enrichment and coking processes have been presented in the paper.
Matuła, Tomasz, Oleksiak, Beata, Siwiec, Grzegorz, Socha, Ladislav, Stanek, Wojciech   +4 more
core  

Setting control of completely recyclable concrete with slag and aluminate cements [PDF]

, 2016
A completely recyclable concrete (CRC) is designed to have a chemical composition equivalent to the one of general raw materials for cement production. By doing so, this CRC can be used at the end of its service life in cement manufacturing without the ...
De Belie, Nele, De Maersschalck, Jan, De Schepper, Mieke, Van Driessche, Isabel   +3 more
core   +2 more sources

Mixed‐Impurity Co‐Poisoning of NH3‐SCR Catalysts: Poisoning Mechanisms, Antagonistic Effects, and Anti‐Inactivation Strategies

EcoEnergy, EarlyView.
This review summarizes the synergistic effects of mixed impurities on ammonia‐selective catalytic reduction (NH3‐SCR) catalysts, including the poisoning mechanism of the catalyst caused by mixed impurities, the antagonistic effects between the impurities, and the research on the anti‐poisoning strategies for the catalyst in recent years.
Hongyan Xue, Manas Pal, Zhaoteng Xue, Dongsen Mao   +3 more
wiley   +1 more source

Optimization of a sustainable composition of fine-grained concrete for 3D-printing with partial substitution of sand with fly ash and slag waste [PDF]

Нанотехнологии в строительстве
Introduction. In the context of sustainable construction, one of the key challenges is the development of effective strategies for the management and recycling of fly ash and slag waste produced by thermal power plants.
Murat A. Rakhimov, Zulfiya A. Aubakirova, Aliya K. Aldungarova, Ignacio Menéndez Pidal de Navascués, Zhangazy N. Moldamuratov   +4 more
doaj   +1 more source