Showing 1 - 10 of 12
, transmission and distribution grids as well as storage and demand response are subject to important path dependences, which put … generation are widely in place, measures to address barriers associated with electricity grids, storage and demand are still in …
Persistent link: https://www.econbiz.de/10011030785
Direct coal liquefaction has been studied and practiced since the 1930s. It was used in Germany during World War II to produce synthetic fuels when there was no oil allowed into the country. Since then, it has been studied in the United States and many different technologies have been...
Persistent link: https://www.econbiz.de/10010668174
kinetics can be evaluated. In this study, the rate constants of the fermentative hydrolysis step (<i>k</i><sub>c</sub>) and the …
Persistent link: https://www.econbiz.de/10011123001
Hydro-conversion of coal hydroliquefaction residue obtained from a 6t/day pilot plant of Shenhua Group in Shanghai was carried out under the hydrotreating condition. The coal hydroliquefaction residue and its product were extracted in sequence with <em>n</em>-hexane, toluene and tetrahydrofuran in a...
Persistent link: https://www.econbiz.de/10011030788
described by first-order reaction rate kinetics. In addition, the natural logarithm of IP (ln IP) at various concentrations of …
Persistent link: https://www.econbiz.de/10011030899
formic acid are investigated due to their catalytic effect on the extraction reactions. Zeroth-order kinetics models are …
Persistent link: https://www.econbiz.de/10011160783
Vapex (vapor extraction of heavy oil and bitumen) is a promising recovery technology because it consumes low energy, and is very environmentally-friendly. The dispersion of solvents into heavy oil and bitumen is a crucial transport property governing Vapex. The accurate determination of solvent...
Persistent link: https://www.econbiz.de/10010668080
Biogas production is a clean renewable energy source that can improve lives in developing countries. However, winter temperatures in some areas are too low to enable enough biogas production in small unheated digesters to meet the energy requirements of households. Low-cost, high yield reactors...
Persistent link: https://www.econbiz.de/10011031163
Solid oxide fuel cells (SOFCs) with proton conducting electrolyte (H-SOFCs) are promising power sources for stationary applications. Compared with other types of fuel cells, one distinct feature of SOFC is their fuel flexibility. In this study, a 2D model is developed to investigate the...
Persistent link: https://www.econbiz.de/10011031342
Notwithstanding the enforcement of ATEX EU Directives (94/9/EC of 23 March 1994) and safety management system application, explosions in the coal sector still claim lives and cause huge economic losses. Even a consolidated activity like coke dry distillation allows the opportunity of preventing...
Persistent link: https://www.econbiz.de/10011031346