Solvent refined coal (SRC) process: evaluation of butane scrubbing for removal of hydrocarbons from SRC-II process recycle gas. Experimental program on PDU P-99. Interim report, March-July 1981. [Essentially a scrubber pretreatment to remove pentane and higher hydrocarbons before cryogenic purification of hydrogen]

Technical Report · Fri Jan 01 04:00:00 EST 1982

OSTI ID:5384988

Mathias, S T

This report presents the results of 18 tests on the butane wash system of Process Development Unit P-99 performed during Runs P99-82 and -83 feeding Powhatan No. 6 Mine coal and during Run P99-85 processing Ireland Mine coal. The objective of this experimental program was to investigate butane as an absorbing liquid for removing pentanes and heavier hydrocarbons from hydrogen-rich SRC-II recycle gas. This experimental data was gathered to assist in determining the feasibility of implementing this system on the SRC-II Demonstration Plant, as a means of reducing heavy hydrocarbons in the feed to the cryogenic unit to an acceptable level (200 ppM C/sub 5//sup +/). Operating conditions were identified which achieved essentially a complete removal of the C/sub 5//sup +/ components from the recycle gas on PDU P-99. Detailed component analyses for individual hydrocarbons and fixed gases were determined for all inlet and outlet streams. Correlations were developed which adequately fit the experimental data; however, these correlations reveal inconsistencies and indicate the need for more extensive tests. Overall operability of the system was judged satisfactory, provided column temperatures were above 45/sup 0/F, and a sufficient supply of butane was fed to offset the large quantity which flashed overhead.

• Research Organization: Pittsburg and Midway Coal Mining Co., Englewood, CO (USA)
• DOE Contract Number: AC05-76ET10104
• OSTI ID: 5384988
• Report Number(s): DOE/ET/10104-27; ON: DE82007664
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010405* -- Coal
Lignite
& Peat-- Hydrogenation & Liquefaction
ALKANES
BUTANE
CHROMATOGRAPHY
COAL GAS
COAL LIQUEFACTION
CRYOGENICS
DATA
DATA ACQUISITION SYSTEMS
EQUIPMENT
EXPERIMENTAL DATA
FLUIDS
FUNCTIONAL MODELS
GAS CHROMATOGRAPHY
GASES
HYDROCARBONS
INFORMATION
LIQUEFACTION
NUMERICAL DATA
ORGANIC COMPOUNDS
PENTANE
POLLUTION CONTROL EQUIPMENT
PROCESS DEVELOPMENT UNITS
PURIFICATION
RECYCLING
REMOVAL
SCRUBBERS
SEPARATION PROCESSES
SRC-II PROCESS
THERMOCHEMICAL PROCESSES
VAPORS