Results 71 to 80 of about 4,442 (238)

Cooperative research program in coal liquefaction. Quarterly report, May 1, 1993--October 31, 1993

open access: yes, 1994
This report summarizes progress in four areas of research under the general heading of Coal Liquefaction. Results of studies concerning the coliquefaction of coal with waste organic polymers or chemical products of these polymers were reported. Secondly,
Hoffman, G. P.
core   +1 more source

Pyrolysis and Liquefaction Mechanisms of Liangshuijing Coal and Its Macerals Based on ReaxFF MD Simulation

open access: yesTaiyuan Ligong Daxue xuebao
【Purposes】As fundamental conversion technologies that transform coal into clean oil, gas, and high-value chemicals, pyrolysis and liquefaction play a vital role in promoting clean and efficient utilization of coal, thereby providing essential support for
LIU Wei   +5 more
doaj   +1 more source

REPRODUCING OPERATIONAL LANDSCAPES: The Rock Mining for Indonesia's New Capital City

open access: yesInternational Journal of Urban and Regional Research, EarlyView.
Abstract Indonesia's new capital city is designed to become a green and sustainable city. In this article, we examine the (un)sustainability of the process through which the city is coming into being. Using the sociospatial theory of planetary urbanization, we trace the dialectical relationship between the new city and sites beyond it to show how ...
Bosman Batubara   +4 more
wiley   +1 more source

Coal liquefaction. Quarterly report, October--December 1977

open access: yes, 1978
Progress on seventeen projects related to coal liquefaction or the upgrading of coal liquids and supported by US DOE is reported with emphasis on funding, brief process description history and current progress ...

core   +1 more source

Coal Liquefaction and Utilization of Coal Resources

open access: yesJournal of the Fuel Society of Japan, 1981
In this paper the development of coal liquefaction technique, liquefac-tion methods, mechanism and requirement of raw material selection are introduced.Analysis of coal resources in China suitable for liquefaction is given.And the importance of coal liquefaction research in the area of coal resources utilization is also ...
openaire   +2 more sources

Towards Sustainable Urbanization and Zero–Carbon Urban Life: A Case Study of BRICS Countries Between 1992 and 2020

open access: yesNatural Resources Forum, EarlyView.
ABSTRACT Urban factors play a critical role in efforts to reduce greenhouse gas emissions and adapt to climate change. In this regard, this study aims to examine the impact of urbanization and its components (e.g., urban population growth [UPG], population in the largest city [ULC], population in urban agglomerations [UPA] of more than 1 million, and ...
Korkmaz Yildirim, Tunahan Haciimamoglu
wiley   +1 more source

A characterization and evaluation of coal liquefaction process streams. Quarterly technical progress report, January 1, 1996--March 31, 1996 [PDF]

open access: yes, 1996
The objectives of this project are to support the DOE direct coal liquefaction process development program and to improve the useful application of analytical chemistry to direct coal liquefaction process development.
Robbins, G. A.   +3 more
core   +1 more source

Coal liquefaction processes

open access: yes, 1979
Coal liquefaction is an emerging technology receiving great attention as a possible liquid fuel source. Currently, four general methods of converting coal to liquid fuel are under active development: direct hydrogenation; pyrolysis/hydrocarbonization; solvent extraction; and indirect liquefaction.
N.R. Baker, C.F. Blazek, R.R. Tison
openaire   +2 more sources

Current Knowledge on Phytoremediation Potential of Industrial Hemp (Cannabis sativa L.) for PFAS and Heavy Metal Contaminated Soils

open access: yesRemediation Journal, Volume 36, Issue 2, Spring 2026.
ABSTRACT This review synthesizes current research on the phytoremediation potential of industrial hemp (Cannabis sativa L.) for heavy metals, including arsenic, aluminium, mercury, copper, lead, cadmium, nickel, and zinc, as well as per‐ and polyfluoroalkyl substances (PFAS), commonly referred to as “forever chemicals.” A structured and transparent ...
Omid Ansari, Luca De Prato
wiley   +1 more source

Low severity coal liquefaction promoted by cyclic olefins [PDF]

open access: yes, 1991
The objective of this project is to evaluate the efficacy of low severity coal liquefaction in the presence of highly reactive hydrogen donors, cyclic olefins.
Curtis, C.W.
core   +1 more source

Home - About - Disclaimer - Privacy