Results 31 to 40 of about 496,578 (236)

Synthesis of Ladder and Flexible Polysulfonimides Directly From Anionic Monomers: Investigating Structure–Property Convergence in Succinonitrile–Polymer Electrolyte Blends

Angewandte Chemie, EarlyView.
Direct synthesis of sulfonimide‐based polymers of intrinsic microporosity enables comparison with compositionally similar flexible analogs. Incorporation of a common pore‐filling transport medium drives these fundamentally different polymer architectures toward similar bulk conductivity and mechanical properties while revealing distinct microscopic ion‐
Abraham Herzog‐Arbeitman, Pablo Leon, Benedikt S. Schreib, KyuJung Jun, Jurgis Ruza, Vanesa Munoz Perales, Yang Shao‐Horn, Rafael Gomez‐Bombarelli, Jeremiah A. Johnson   +8 more
wiley   +2 more sources

Comparison of Tar Samples from Reaction Zone and Outlet in Ex-Situ Underground Coal Gasification Experiment

Energies, 2021
Tar remaining in the gasification cavity during underground coal gasification (UCG) is an important pollution source, while the reported studies only focus on the tar behavior at the outlet.
Lele Feng, Maifan Dong, Yuxin Wu, Junping Gu   +3 more
doaj   +1 more source

Pyrolysis characteristics and product distribution of low-rank coal with heat-carrying particles adopting TG-FTIR and a novel self-mixing down tube reactor

Case Studies in Thermal Engineering
A novel self-mixing down tube (SDT) pyrolyzer has been developed, which can separate the heat carrying particles preheated in the fluidized bed from the coal, and the two can be mixed through a specific structure to instantly heat the coal particles to a
Yue Gao, Lanyi Sun, Yuanyu Tian
doaj   +1 more source

Occupational exposure to coal tar products [PDF]

"NIOSH recommends that occupational exposure to coal tar products in the workplace be controlled so that employees are not exposed to coal tar (8007452), coal tar pitch, creosote (8001589), or mixtures of these substances at a concentration greater than ...

core   +1 more source

Discussion on underground system sealing methods in in-situ pyrolysis exploitation of tar-rich coal

, 2023
China has abundant tar-rich coal resource, in-situ underground pyrolysis is the main trend of green and efficient development of tar-rich coal resources.
Youhong, SUN, Zhao, LIU, Wei, GUO, Qiang, LI, Sunhua, DENG   +4 more
core   +1 more source

Numerical Simulation of the Tar Mist and Dust Movement Process in a Low-Temperature Dry Distillation Furnace

Journal of Chemistry, 2020
In the low-temperature dry distillation of low-rank coal, the important liquid product of coal tar is produced, but its quality and utilization rate are degraded by entrained dust.
Qiuli Zhang, Xiangrong Hui, Long Yan, Min Luo, Wenru Feng, Jun Zhou, Xinzhe Lan   +6 more
doaj   +1 more source

An Experimental Study on the Quantitative and Qualitative Characteristics of Tar Formed during Ex Situ Coal Gasification

Energies, 2023
Over the three-day gasification test of a large coal block with oxygen in atmospheric pressure conditions, the yield and composition of the tar collected was investigated.
Marian Wiatowski
doaj   +1 more source

Organic geochemical characteristics and geological indicative significance of tar-rich coal

Meitan xuebao
As a strategic mineral resource that integrates coal-based fuel, liquid oil, and gaseous energy, the efficient exploration and tiered utilization of tar-rich coal are of great significance for ensuring national energy security and maximizing the value of
Yuan BAO, Yufei ZHUANG, Shuangming WANG, Ruihui ZHENG, Yiliang HU, Qi YANG   +5 more
doaj   +1 more source

An Empirical Study on Laboratory Coke Oven-based Coal Blending for Coking with Tar Residue

Chemical Engineering Transactions, 2018
Tar residue is the solid waste produced in coking plants or gas generators. Utilizing tar residue as additive in coal blending for coking is an effective approach for coal coking in our country, not only improving the yield and nature of coking products,
Wenqiu Liu
doaj   +1 more source

Differences and origins of hydrocarbon generation characteristics between tar-rich coal and tar-containing coal in Yan’an Formation, Ordos Basin

Meitan xuebao
Properties of oil and gas resource found in tar-rich coal present a novel avenue for enhancing domestic oil and gas supply. The characteristics of hydrocarbon generation kinetics are critical factors that influence the in-situ pyrolysis conversion ...
Ruihui ZHENG, Yuan BAO, Nan ZHANG, Jiao XUE, Jiajun LI, Yonghui HAO, Tuo SHAN   +6 more
doaj   +1 more source