Results 111 to 120 of about 41,757 (268)

Preconversion processing of bituminous coals: New directions to improved direct catalytic coal liquefaction [PDF]

, 1992
A study of high-temperature soaking has been continued. Two high-volatile bituminous coals and three coal liquids were used. Large pyridine extractabilities of more than 70 wt% were obtained for aR cases. A better understanding Of the mechanism is important for the development of coal preconversion using the high-temperature soaking. To investigate the
openaire   +2 more sources

Considerations on coal gasification [PDF]

Commercial processes for the gasification of coal with oxygen are discussed. The Koppers-Totzek process for the gasification of coal dust entrained in a stream of gasifying agents is described in particular detail.
Franzen, J. E.
core   +1 more source

Surrogate Models and Related Combustion Reaction Mechanisms for a Coal-Derived Alternative Jet Fuel and Its Blends with a Traditional RP-3

Aerospace
Jet fuel from direct coal liquefaction (DCL) is an important alternative kerosene and represents a high-performance fuel for specific applications in civil applications.
Quan-De Wang, Lan Du, Bi-Yao Wang, Qian Yao, Jinhu Liang, Ping Zeng, Zu-Xi Xia   +6 more
doaj   +1 more source

Closing address Introduce or develop further the new energy technologies? [PDF]

, 1981
Westerterp, K.R.
core   +4 more sources

Studies of the use of high-temperature nuclear heat from an HTGR for hydrogen production [PDF]

The results of a study which surveyed various methods of hydrogen production using nuclear and fossil energy are presented. A description of these methods is provided, and efficiencies are calculated for each case.
Fontaine, R. W., Halvers, L. J., Jahromi, A. M., Peterman, D. D., Quade, R. N.   +4 more
core   +1 more source

Progress on coal-derived fuels for aviation systems [PDF]

The results of engineering studies of coal-derived aviation fuels and their potential application to the air transportation system are presented. Synthetic aviation kerosene (SYN.
Witcofski, R. D.
core   +2 more sources

Conduct an advanced numerical simulation investigation on the rutting performance of coal liquefaction residue asphalt mixture

Frontiers in Materials
Coal liquefaction residue (CLR), a byproduct of coal-to-liquid technology known to adversely affect the ecological environment and human health, was investigated in this study for its influence on the rutting resistance of asphalt mixtures.
Zhe Wang, Zhe Wang, Zhen Wang, Chuan Sha, Shuangfeng Guo, Shuangfeng Guo, Wenhua Zheng, Hongbo Cao, Xiaowei Shan, Guoqing Cao, Jie Ji, Pengfei Li   +11 more
doaj   +1 more source

Modified Two-Step Dimethyl Ether (DME) Synthesis Simulation From Indonesian Brown Coal [PDF]

, 2016
A theoretical study was conducted to investigate the performance of dimethyl ether (DME) synthesis from coal. This paper presents a model for two-step DME synthesis from brown coal represented by the following processes: drying, gasification, water-gas ...
Luthan, A. F. (Abdurrahman), Sasongko, D. (Dwiwahju), Wulandari, W. (Winny)   +2 more
core  

Numerical Investigations of the Influence of the Spool Structure on the Flow and Damage Characteristics of Control Valves

Fluids
This study investigates the flow dynamics and damage characteristics of liquid level control valves in direct coal liquefaction processes. The primary failure mechanisms are identified as eccentric jet-induced unilateral wall damage, cavitation erosion ...
Haozhe Jin, Haokun An, Chao Wang, Xiaofei Liu   +3 more
doaj   +1 more source

Integrated gasifier combined cycle polygeneration system to produce liquid hydrogen [PDF]

An integrated gasifier combined cycle (IGCC) system which simultaneously produces electricity, process steam, and liquid hydrogen was evaluated and compared to IGCC systems which cogenerate electricity and process steam.
Burns, R. K., Donovan, R. M., Staiger, P. J.   +2 more
core   +1 more source