Results 11 to 20 of about 496,578 (236)

Coal tar in dermatology

Journal of Dermatological Treatment, 2007
Coal tar is one of the oldest treatments for psoriasis and eczema. It has anti-inflammatory, antibacterial, antipruritic and antimitotic effects. The short-term side effects are folliculitis, irritation and contact allergy. Coal tar contains carcinogens.
Roelofzen, J.H.J., Aben, K.K.H., van der Valk, P.G.M., van Houtum, J.L.M., van de Kerkhof, P.C.M., Kiemeney, L.A.L.M., Kiemeney, L.A.L.M.   +6 more
openaire   +4 more sources

Key problems in in-situ pyrolysis of tar-rich coal drilling for extraction of coal-based oil and gas resources [PDF]

Meitan xuebao, 2023
Tar-rich coal is a special coal resource with the property of oil and gas resources. Developing the oil and gas resources contained in the tar-rich coal is of great significance for ensuring energy security and realizing the goal of "dual carbon".
Deliang FU, Zhonghui DUAN, Fu YANG, Li MA, Zhendong WANG, Tao TIAN, Dan HE   +6 more
doaj   +2 more sources

Study on lightening of coal tar with metal oxide supported γ-Al2O3 catalyst [PDF]

Scientific Reports, 2023
In this experiment, a fixed bed of pyrolysis was used to conduct pyrolysis with coal and a mixture of coal and catalyst, and the distribution and composition of tar products were studied.
Chen Jihao, Li Juan, Li Yue, Zhang Jinjing   +3 more
doaj   +2 more sources

Distribution of early and middle Jurassic tar-rich coal and its geological controls in Northern Xinjiang

Meitan kexue jishu
The tar-rich coal resources in northern Xinjiang are rich, accounting for about half of the country's tar-rich coal. The rational development and utilization of tar-rich coal resources in this region is an important supplement to Chinese coal resources ...
Shuzheng NING, Li ZHANG, Xiaotao XU, Jianqiang ZHANG, Zhuo ZOU   +4 more
doaj   +2 more sources

Differences in hydrocarbon generation kinetics between shale and tar-rich coal and temperature conditions for in-situ co-production [PDF]

Meitan xuebao
The area of shale exhibiting middle- to low-maturity constitutes over 90% of the total shale area within the seventh Member of the Yanchang Formation (Chang 7 Member) in the Ordos Basin. Additionally, the tar-rich coal resources of the Lower-Jurassic Yan’
Ruihui ZHENG, Yuan BAO, Zhihuan ZHANG, Xuan YUAN   +3 more
doaj   +2 more sources

Evaluation of the thermoplastic behavior of charcoal, coal tar and coking coal blends

Journal of Materials Research and Technology, 2020
This work aimed to evaluate the combined use of charcoal (Ch) and coal tar (Tar) as a way to mitigate the negative effects of using biomass in coal blends for cokemaking.
Eduardo Osorio, Antônio Cezar Faria Vilela   +1 more
exaly   +3 more sources

Fissure evolution and variation of pyrolysis kinetics parameters of tar-rich coal during heat treatment under different atmosphere

Meitan kexue jishu
The clean and efficient development of tar-rich coal is helpful in ensuring China's energy security. The tar-rich coal from Ningtiaota Mine was selected and heated under N2 and hypoxia atmosphere.
Shuangming WANG, Qiang SUN, Xin HU, Zhenlong GE, Jishi GENG, Shengze XUE, Qingmin SHI   +6 more
doaj   +2 more sources

Evolution law of nanopore properties during underground in-situ pyrolysis of tar-rich coal [PDF]

Meitan xuebao
Underground pyrolysis of tar-rich coal is a green and low-carbon technology that effectively extracts oil and gas resources from coal. It represents the forefront of clean and low-carbon utilization of coal.
Tao XU, Jie CHEN, Yongping WU, Yubin KE, Panshi XIE, Wenyu LYU   +5 more
doaj   +2 more sources

Coal-tar pitch as the matrix carbon precursor in carbon–carbon composites

, 1995
Coal-tar pitch is a promising carbon matrix precursor for carbon-carbon composites. It has a suitable viscosity, high carbon yield, and it forms graphitic structures. In addition, pitch is a relatively cheap raw material.
Panagiotis D. Matzinos (7127036)
core   +6 more sources

Analysis on the occurrence characteristics and resource potential of tar-rich coal in Santanghu and Turpan-Hami Basins

Meitan xuebao, 2023
Oil-rich coal is a special coal resource with a tar yield ≥ 7% and a combination of coal, oil, and gas attributes. It is an important resource and development direction for the clean utilization of coal, and has important scientific value in alleviating ...
Zhen DONG, Mengyuan ZHANG, Yanpeng CHEN, Shuo FENG, Junjie XUE, Hao CHEN, Jijun TIAN, Shanshan CHEN, Yufeng ZHAO, Xinggang WANG, Lixin JIAO, Bin LI   +11 more
doaj   +1 more source