Reaction, process, and cost engineering for the flash hydropyrolysis (FHP) of coal

Conference · Wed Nov 01 00:00:00 EST 1978

OSTI ID:6574855

Steinberg, M; Fallon, P; Dang, V D; Bhatt, B; Ziegler, E; Lee, Q

The latest experimental data on the Flash Hydropyrolysis of North Dakota lignite in the 2 lb/hr entrained tubular reactor experimental facility are summarized. The range of conditions investigated covers reactor pressures from 500 psi to 4000 psi, temperatures from 500/sup 0/ to 900/sup 0/C, and coal particle residence times in the reactor from 1 to 10 seconds. The major effects of the process variables on the yields of liquid hydrocarbons consisting mainly of BTX and heavy oils (>= C/sub 9/) and hydrocarbon gases consisting mainly of methane and ethane and small amounts of carbon oxides are summarized. The product yield for maximum carbon conversion to liquid was obtained at 725/sup 0/C and 2000 psi and amounts to 10% BTX, 10% oils, 25% methane, 10% ethane, and 6% CO. A maximum gaseous yield was obtained at 875/sup 0/C and 2500 psi and amounts to 88% methane, 0.5% ethane, 1.3% CO and < 1% BTX. The FHP process has the advantage of allowing effective gas-solid and gas-liquid separation operations for producing hydrocarbon products from the unconverted char, oils, and process gas. The FHP system also has the distinct advantage of versatility and process flexibility for varying the product slate and the production rate of gaseous and liquid hydrocarbon fuel products in the same reactor depending on reactor operating conditions.

• Research Organization: Brookhaven National Lab., Upton, NY (USA)
• Sponsoring Organization: USDOE
• DOE Contract Number: EY-76-C-02-0016
• OSTI ID: 6574855
• Report Number(s): BNL-25232; CONF-781110-8
• Resource Relation: Conference: 71. meeting of the AICHE, Miami, FL, USA, 12 Nov 1978
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
CHEMICAL REACTORS
DESIGN
FLASH HYDROPYROLYSIS PROCESS
CHEMICAL REACTION YIELD
BENZENE
COAL
COAL GASIFICATION
COAL LIQUEFACTION
ENGINEERING
ETHANE
FUEL OILS
HYDROCARBONS
MATHEMATICAL MODELS
METHANE
TOLUENE
XYLENES
ALKANES
AROMATICS
CARBONACEOUS MATERIALS
CRYOGENIC FLUIDS
ENERGY SOURCES
FLUIDS
FOSSIL FUELS
FUELS
GASIFICATION
LIQUEFACTION
OILS
ORGANIC COMPOUNDS
OTHER ORGANIC COMPOUNDS
PETROLEUM PRODUCTS
THERMOCHEMICAL PROCESSES
YIELDS
010406* - Coal &amp; Coal Products- Pyrolysis &amp; Cracking- (-1987)
010404 - Coal
Lignite
&amp; Peat- Gasification
010405 - Coal
Lignite
&amp; Peat- Hydrogenation &amp; Liquefaction