Results 71 to 80 of about 159,837 (244)

Green binder system for taphole clays: A potential for glycerine and phenolic resin

Open Ceramics
Recent advancements in taphole clay binder development have focused on replacing toxic coal tar/pitch, which contains polycyclic aromatic hydrocarbons (PAH), with greener alternatives.
I.J-P. Cameron, A.M. Garbers-Craig
doaj   +1 more source

Failure Characteristic and Stability Control of Gob‐Side Entry Retention With Narrow Roadside Filling Wall

Energy Science &Engineering, EarlyView.
A novel collaborative control technology of gob‐side entry retention with narrow roadside filling wall is proposed, wherein anchoring end of anchor cable must penetrate the boundary line of stress peak (plastic zone). ABSTRACT Gob‐side entry retention represents a major technological innovation in the history of coal mining, offering numerous ...
Wenxu Liang, Wei Fu, Ziwen Liu
wiley   +1 more source

Influence of low-density polyethylene addition on coking pressure [PDF]

, 2014
Different amounts of low-density polyethylene (LDPE) were added to a bituminous coal used to produce metallurgical coke. The effect of the plastic waste on the carbonization process and more exactly, on the coking pressure were investigated.
Alvarez, R., Barriocanal, C., Diez, M.A., Melendi, Sonia   +3 more
core   +1 more source

Study on Damage Characteristics and Evolution Law of Macro‐Meso Structure of Surrounding Rock Under Mining Stress

Energy Science &Engineering, EarlyView.
Investigating the differential impact of mining stress on roadways, we find that in horizontally stressed environments, the inner surrounding rock exhibits more pronounced macro‐meso damage compared to the outer side. ABSTRACT The control of surrounding rocks in dynamic pressure roadways has consistently been one of the challenging predicaments in the ...
Fan Lei, Chang Jucai, Yuan Chao, Wu Hai, Chen Haoran   +4 more
wiley   +1 more source

Rapid pyrolysis of low rank coal: dynamic modeling and parameter analysis of a novel solid heat carrier in a co-current downer reactor

Case Studies in Thermal Engineering
A novel co-current downer pyrolyzer was developed to enable high-temperature heat-carrying particles, preheated in a fluidized bed, to directly contact coal particles.
Yanchao Shang, Jialin Zhao, Wenlong Xu, Jingxian Wang, Peijie Zong, Di Zhang, Yingyun Qiao, Yuanyu Tian   +7 more
doaj   +1 more source

Ultra‐Uniform Lithium‐Ion Transport Enabled by Supramolecular Polymeric Networks as Artificial Solid Electrolyte Interphase Layers for Highly Stable Lithium‐Ion Battery Anodes

Small, EarlyView.
Incorporation of p‐phenylenediamine (pPD) into the polymer–pPD supramolecular artificial SEI reduces the activation energy for Li‐ion desolvation at the interface and promotes Li‐ion transport through the layer, thereby ensuring uniform delivery of Li‐ion into the SCN and stable cycling performance regardless of the inherently uneven thickness of the ...
Jeong Won Ho, Myeong Gyun Nam, Sungpyo Hong, Yong Hui Kim, Chaeyeon Ha, Minjun Kim, Hyunjun Song, Yuna Son, Seong Woo Jeong, Jin Kyo Koo, Chan‐Hwa Chung, Myoung‐Woon Moon, Young‐Jun Kim, Sang Uck Lee, Pil J. Yoo   +14 more
wiley   +1 more source

Modeling the Thermal Properties of Hydrogen‐Based Direct Reduced Iron Using Computational Thermodynamics and Machine Learning

steel research international, EarlyView.
Hydrogen‐based direct reduced iron (H‐DRI) melts differently from scrap and carbon‐bearing DRI. This work combines differential scanning calorimetry experiments, FactSage thermodynamics, and simple composition‐based regression to predict solidus, liquidus, heat capacity, and enthalpy for H‐DRI.
Ankur Agnihotri, Petri Sulasalmi, Pasquale Cavaliere, Ville‐Valtteri Visuri   +3 more
wiley   +1 more source

Subcritical Extraction of Coal Tar Slag and Analysis of Extracts and Raffinates

Applied Sciences
Coal is an important energy source for the development of modern society. The processing and utilization of coal have brought significant economic benefits for people, but at the same time, a large amount of coal-based solid waste is produced.
Xiaohua Wang, Zhongchao Zhu, Jianyou Zhao   +2 more
doaj   +1 more source

Assessing the Health Impacts of Contaminants on Green Turtles (Chelonia mydas) Along the Southern Coast of Brazil

Environmental Toxicology, EarlyView.
ABSTRACT Chemical pollutants pose a significant threat to marine ecosystems. Among these contaminants are trace elements and polycyclic aromatic hydrocarbons (PAH). Green turtles can be employed to evaluate the oceans' health due to their coastal habitats and exposure to multiple threats.
Camila Roberta da Silva Ribeiro, Andressa Maria Rorato Nascimento de Matos, Eloiza Teles Caldart, Liana Rosa, Camila Domit, Guilherme dos Santos Lima, Ana Paula Frederico Rodrigues Loureiro Bracarense   +6 more
wiley   +1 more source

Production capacity prediction of U-shaped horizontal wells for in-situ pyrolysis of tar-rich coal: Experimental and numerical simulation study

Meitan xuebao
Under the goal of “dual carbon”, “taking hydrogen and retaining carbon” has become an inevitable choice for the clean utilization of coal, and underground coal pyrolysis provides a new idea for increasing domestic tar and gas production.
Zhen DONG, Yanpeng CHEN, Mengyuan ZHANG, Xinggang WANG, Lixin JIAO, Shuo FENG, Bo REN, Hao CHEN, Junjie XUE, Yufeng ZHAO, Diefang HUANG   +10 more
doaj   +1 more source