Coal pretreatment for two-stage liquefaction

Technical Report · Wed Apr 01 04:00:00 EST 1987

OSTI ID:5142235

Cho, H; Luckie, P T

The objective of this research is to examine the effects of employing coal feedstock with altered maceral compositions on coal liquefaction results. The altered maceral compositions were to be achieved by employing near commercial concentration procedures, after achieving liberation via comminution. Because it was necessary to produce rather fine (<75 {mu}m) particulates to achieve acceptable liberation, liquid-liquid extraction was chosen as the separation process. This report presents the results of the liberation behavior of coal macerals during comminution and preliminary liquid-liquid extraction results. For the analysis of liberation, the size fractions from either crushing or grinding were subjected to the gravity fractionation. Then, the size-density fractions were analyzed for the petrographic composition to produce the size-composition matrices. 53 refs., 27 figs., 31 tabs.

• Research Organization: Pennsylvania State Univ., University Park, PA (USA). Dept. of Mineral Engineering
• Sponsoring Organization: DOE/FE
• DOE Contract Number: FG22-84PC70003
• OSTI ID: 5142235
• Report Number(s): DOE/PC/70003-F1; ON: DE90005308
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010300 -- Coal
Lignite
&amp; Peat-- Preparation-- (1987-)
010405* -- Coal
Lignite
&amp; Peat-- Hydrogenation &amp; Liquefaction
CARBONACEOUS MATERIALS
CLEANING
COAL
COAL LIQUEFACTION
COMMINUTION
CRUSHING
DOCUMENT TYPES
ENERGY SOURCES
EXTRACTION
FOSSIL FUELS
FRACTIONATION
FUELS
GRINDING
LIQUEFACTION
MACERALS
MACHINING
MATERIALS
PETROGRAPHY
PROGRESS REPORT
SEPARATION PROCESSES
SIZE
THERMOCHEMICAL PROCESSES
VITRINITE
WASHING