Experimental program for the development of peat gasification: Interim report No. 10. Low-severity hydropyrolysis

Technical Report · Mon Feb 01 04:00:00 EST 1982

OSTI ID:5414040

This interim report presents the results of tests conducted to determine the effects of temperature, hydrogen partial pressure, and steam on the hydropyrolysis (hydrogasification) characteristics of a Minnesota peat. The tests were conducted under low-severity conditions: temperatures less than 1500/sup 0/F, pressures less than 500 psia, and residence times of about 5 seconds or less. The work was conducted from September 1, 1979, through July 31, 1980, in the Experimental Program for the Development of Peat Gasification. This was jointly funded by the US Department of Energy (DOE) and Minnesota Gas Co. (Minnegasco) under DOE contract No. EX-76-C-01-2469. A total of 13 tests were conducted in the hydrogasification process development unit (PDU) with a peat from Minnesota. The PDU liquid recovery system was improved to increase the sample recovery efficiency; the reactor coil itself had been reduced in length from 160 to 77 feet so that shorter solids residence times could be achieved. Nine of the tests were conducted with hydrogen at pressures of 250 or 500 psia and at maximum coil temperatures ranging from 1000/sup 0/ to 1508/sup 0/F. The other four tests were conducted with steam and nitrogen mixtures at 100 psia (one at 30 psia) and at temperatures ranging from 1230/sup 0/ to 1504/sup 0/F. Solids residence times for all the tests ranged from 3.9 to 5.3 seconds (one at 1.0 second). The overall conclusion is that a high hydrogen partial pressure is not required to make a valuable oil product from peat.

• Research Organization: Minnesota Gas Co., Minneapolis (USA)
• DOE Contract Number: AC01-76ET10283
• OSTI ID: 5414040
• Report Number(s): DOE/ET/10283-T13; FE-2469-62; ON: DE82010911
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010406* -- Coal & Coal Products-- Pyrolysis & Cracking-- (-1987)
090121 -- Hydrocarbon Fuels-- Chemical Synthesis-- (1976-1989)
10 SYNTHETIC FUELS
CHEMICAL REACTION YIELD
CHEMICAL REACTIONS
DATA
DECOMPOSITION
ENERGY SOURCES
EXPERIMENTAL DATA
FEDERAL REGION V
FOSSIL FUELS
FUELS
FUNCTIONAL MODELS
GASOLINE
HIGH TEMPERATURE
HYDROCARBONS
INFORMATION
LIQUID FUELS
MEDIUM PRESSURE
MINNESOTA
NORTH AMERICA
NUMERICAL DATA
ORGANIC COMPOUNDS
ORGANIC MATTER
PARTIAL PRESSURE
PEAT
PETROLEUM PRODUCTS
PRESSURE DEPENDENCE
PROCESS DEVELOPMENT UNITS
PYROLYSIS
PYROLYSIS PRODUCTS
STEAM
TEMPERATURE DEPENDENCE
THERMOCHEMICAL PROCESSES
USA
VERY HIGH TEMPERATURE
YIELDS