Results 81 to 90 of about 22,366 (236)

The H-Coal processes: A status report [PDF]

open access: yes
A catalytic process (H-Coal) involving the direct hydrogenation of coal to produce hydrocarbon liquids is described. Bench-scale and pilot plant development of the H-Coal process is reported. Emphasis is placed on a proposed pilot plant which will be the
Voss, W. C.
core   +1 more source

A Method to Estimate Health Effects Based on Error‐Prone Simulated Environmental Exposure: An Application to a Multi‐Country Study on Birthweight and Fine Particulate Matter

open access: yesGeoHealth, Volume 10, Issue 5, May 2026.
Abstract Earth System Models provide spatiotemporally continuous environmental exposure data but remain underused in environmental epidemiology because of uncertainty from measurement errors. We developed a novel latent‐variable approach to correct for measurement error characterized by spatiotemporal error covariance, which was derived from ...
Jinting Guo   +4 more
wiley   +1 more source

Analysis of the explosion risk of low-concentration oxygen-bearing coal bed methane in the low-temperature environment

open access: yesCase Studies in Thermal Engineering
In the process of deep cooling and liquefaction of low-concentration (concentration
Runzhi Li   +6 more
doaj   +1 more source

Conversión hidrotermal de biomasa en bioproductos valiosos [PDF]

open access: yes, 2019
Los procesos hidrotérmicos son una excelente alternativa para convertir desechos de biomasa en productos de alto valor energético. El alcance de este proyecto ofrece el estudio de 5 tipos de biomasa distintos: café, madera blanca, arroz, lignina y madera
García Riesco, Luis Miguel
core  

Interlaboratory comparisons of petrography of liquefaction residues from three Argonne Premium coals [PDF]

open access: yes, 1995
Three Argonne Premium coal samples, the Beulah-Zap lignite (North Dakota), the high volatile A bituminous Stockton (West Virginia), and the low volatile Pocahontas No.
Anderson, K. B.   +5 more
core   +1 more source

The Relationship Between Catalyst and Solvent in Hydrogenation via Condensed Phase Heterogeneous Catalysis

open access: yesChemSusChem, Volume 19, Issue 8, 28 April 2026.
Heterogeneous catalysis has historically been developed in the gas phase, however, we have found it pertinent to highlight solvent effects that must be accounted for in liquid environments. Condensed phase catalysis, like that in biomass, petroleum and the conversion of CO2, stands to benefit from the typically overlooked discussion regarding the ...
Jim B. Floyd   +3 more
wiley   +1 more source

The Liquid Hydrogen Option for the Subsonic Transport: A status report [PDF]

open access: yes
Continued subsonic air transport design studies include the option for a liquid hydrogen fuel system as an aircraft fuel conservation measure. Elements of this option discussed include: (1) economical production of hydrogen; (2) efficient liquefaction of
Korycinski, P. F.
core   +1 more source

IMPROVING THE METHOD OF OPEN-PIT LIGNITE DEPOSITS DEVELOPMENT IN UKRAINE [PDF]

open access: yes, 2018
Subject of the research is open-pit mining concerning a full- field industrial development of a number of lignite deposits; feasibility study has been performed for them as for the efficient environmental friendly processing of coal and associated ...
Adamchuk, A.A.   +11 more
core  

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