A low cost high energy density carbon black fuel mix for heat engines
- Brookhaven National Lab., Upton, NY (USA)
The new process converts a carbon-containing raw material to an absolutely clean carbon fuel by an extremely efficient two-stage chemical process. The starting carbonaceous material can include all grades of coal (lignite, bituminous to anthracite), low grade and residual oils, tars, tar sand, oil shale, biomass (wood and agricultural products), and industrial and municipal waste (tires and paper). Because coal is the most abundant low cost indigenous fuel source in the US, the process is most applicable to coal and will be demonstrated herein. In the first stage the HYDROCARB process coal is reacted with hydrogen gas in a vessel (hydropyrolysis reactor) under elevated temperature and pressure and for a sufficient length of time to form high yields of methane gas. In the second stage, the gas containing the methane is thermally decomposed in a second vessel (methane pyrolysis reactor) to form clean solid carbon particulates and gaseous hydrogen at approximately the same pressure but at a temperature higher than the hydropyrolysis reactor. To efficiently complete the process cycle, the hydrogen gas formed in the methane pyrolysis reactor is recycled to the hydropyrolysis reactor.
- OSTI ID:
- 5113837
- Report Number(s):
- CONF-8704350--
- Journal Information:
- American Chemical Society, Division of Petroleum Chemistry, Preprints; (USA), Journal Name: American Chemical Society, Division of Petroleum Chemistry, Preprints; (USA) Vol. 32:2; ISSN 0569-3799; ISSN ACPCA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
010402* -- Coal
Lignite
& Peat-- Purification & Upgrading
010405 -- Coal
Lignite
& Peat-- Hydrogenation & Liquefaction
010409 -- Coal
Lignite
& Peat-- Pyrolysis & Carbonization-- (1987-)
ALKANES
CARBON
CARBON BLACK
CARBONACEOUS MATERIALS
CHEMICAL REACTIONS
COAL
DATA
DECOMPOSITION
ELEMENTS
ENERGY SOURCES
EXPERIMENTAL DATA
FOSSIL FUELS
FUELS
HYDROCARBONS
HYDROGENATION
INFORMATION
MATERIALS
METHANE
NONMETALS
NUMERICAL DATA
ORGANIC COMPOUNDS
PRODUCTION
PYROLYSIS
THERMOCHEMICAL PROCESSES