Results 111 to 120 of about 22,366 (236)

Rocketdyne's advanced coal slurry pumping program [PDF]

open access: yes, 1977
The Rocketdyne Division of Rockwell International Corporation is conducting a program for the engineering, fabrication, and testing of an experimental/prototype high-capacity, high-pressure centrifugal slurry feed pump for coal liquefaction purposes. The
Davis, D. E., Gilman, H. H., Wong, G. S.
core   +1 more source

Comparative analysis of covalent bond cleavage and free radical behavior during the heating process in direct coal liquefaction of Naomaohu and Shangwan coals

open access: yesFuel Processing Technology
The cleavage of covalent bonds and the generation of radicals play a crucial role in product distribution during direct coal liquefaction (DCL). This paper systematically investigates the mechanisms of covalent bond cleavage and the behavior of free ...
Huina Xu   +8 more
doaj   +1 more source

The Status of Coal Liquefaction [PDF]

open access: yes, 1987
This paper comprised the draft of a lecture in Extension Lectures of Toyama University (1986), "Modern History and the Present Generation".The history of the study of coalliquefaction, energy resources of the World, energy policies of Japan and other ...
塚島 寛
core   +1 more source

Pressure letdown method and device for coal conversion systems [PDF]

open access: yes, 1983
In combination with a reactor for a coal utilization system, a pressure letdown device accepts from a reactor, a polyphase fluid at an entrance pressure and an entrance velocity, and discharges the fluid from the device at a discharge pressure ...
Kendal, J. M., Walsh, J. V.
core   +1 more source

Research progress of enrichment characteristics of hazardous mineral matter in coal and their migration and transformation during thermal technology

open access: yesMeitan xuebao
Low-carbon, zero-emission, and efficiency enhancement are the main themes of clean coal utilization today. The slagging and pollution caused by mineral matter in coal are key bottlenecks in clean coal technologies.
Yuegang TANG   +8 more
doaj   +1 more source

Localized fluidization in granular materials: Theoretical and numerical study

open access: yes, 2016
We present analytical and numerical results on localized fluidization within a granular layer subjected to a local injection of fluid. As the injection rate increases the three different regimes previously reported in the literature are recovered ...
Chareyre, B.   +3 more
core   +2 more sources

Methods of Coal Liquefaction

open access: yesTRUDY UNIVERSITETA
The methods of production of liquid fuels and chemical products from coal are considered. The most universal method for producing liquid products from coal is direct hydrogenation, i.e., the production of molecular hydrogen under pressure at elevated temperature using a liquid product (paste) and catalysts.
Gulnaz MUSINA   +4 more
openaire   +1 more source

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

open access: yes
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.   +2 more
core   +1 more source

A rural agricultural-sustainable energy community model and its application to Felton Valley, Australia [PDF]

open access: yes, 2013
Energy and food security require a delicate balance which should not threaten or undermine community prosperity. Where it is proposed to derive energy from conventional fossil fuel resources (such as coal, shale oil, natural gas, coal seam gas) located ...
Berrill, T.   +4 more
core  

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