Results 21 to 30 of about 1,608 (223)

Cooperative research in coal liquefaction. Final report, May 1, 1990-- April 30, 1991 [PDF]

open access: yes, 1992
The Consortium for Fossil Fuel Liquefaction Science (CFFLS) is currently engaged in a three year contract with the US Department of Energy investigating a range of research topics dealing with direct coal liquefaction.
Huffman, G. P.
core   +1 more source

Impact of hydrodynamics on coal liquefaction. Final technical report [PDF]

open access: yes, 1983
We have attempted to determine the hydrodynamic effects of various reactor configurations on coal liquefaction, to help select the optimal reactor configuration and to provide additional understanding of coal liquefaction reaction kinetics, which cannot ...
Givens, E.N., Kang, D., Ying, D.H.S.
core   +1 more source

The Shenhua coal direct liquefaction plant

open access: yesFuel Processing Technology, 1999
Abstract Hydrocarbon Technologies (HTI) has been working on a feasibility study for the construction of a Direct Coal Liquefaction Plant in Shenhua coalfield of China. HTI's direct coal liquefaction process, consisting primarily of two backmixed reactor stages plus a fixed-bed inline hydrotreater, operates at a pressure of 17 MPa and reactor ...
Alfred G. Comolli   +3 more
openaire   +1 more source

Direct liquefaction of low-rank coals [PDF]

open access: yes, 1988
Co-processing of low-rank coals (LRCs) with petroleum resids under mild conditions may produce a product that extends petroleum refinery feeds with a partially coal-derived material. These co-processing products may also provide a lower-cost way to introduce coal-derived materials into the commercial market.
Rindt, J. R.   +3 more
openaire   +2 more sources

Advanced direct coal liquefaction concepts [PDF]

open access: yes, 1992
During the first quarter of FY 1993, the Project proceeded close to the Project Plan. The analysis of the feed material has been completed as far as possible. Some unplanned distillation was needed to correct the boiling range of the Black Thunder solvent used during the autoclave tests.
Berger, D. J.   +2 more
openaire   +1 more source

Mechanistic Insights into Iron–Sulfur Clusters for Direct Coal Liquefaction: A Combined First-Principles and Machine Learning Study

open access: yesChemistry
Direct Coal Liquefaction (DCL) is a promising route for converting abundant coal resources into liquid fuels, yet its efficiency remains strongly dependent on catalyst performance.
Jing Xie   +7 more
doaj   +1 more source

Composition and structure of extraction residue of direct coal liquefaction residue and recycle of active phase of iron catalyst

open access: yesMeitan xuebao
In order to solve the problem of iron source supply for large-scale direct liquefaction catalyst, and meanwhile realize the harmless separated-utilization of extraction residue from coal liquefaction, this paper conducted a research on the recovery of ...
Dao LI   +5 more
doaj   +1 more source

Short Contact Time Direct Coal Liquefaction Using a Novel Batch Reactor

open access: yes, 2009
The primary objective of this research is to optimize the design and operation of the bench scale batch reactor (SCTBR) for studying direct coal liquefaction at short contact times (.01 to 10 minutes or longer) .
He Huang; Michael T. Klein; William H. Calkins
core   +1 more source

SHORT CONTACT TIME DIRECT COAL LIQUEFACTION USING A NOVEL BATCH REACTOR [PDF]

open access: yes, 1997
The overall goal of this research is to develop an understanding of the Direct Coal Liquefaction process at the molecular level. Many approaches have been used to study this process including kinetic studies, study of the liquefaction products, study of ...
Calkins, William H., Klein, Michael T.
core   +1 more source

Effect of direct coal liquefaction residue on the properties of fine blue-coke-based activated coke

open access: yesGreen Processing and Synthesis, 2022
Activated coke was obtained by CO2 activation with disused fine blue-coke serving as the main raw material and direct coal liquefaction residue (DCLR) as binder.
Tian Yuhong   +5 more
doaj   +1 more source

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