Process for removing pyritic sulfur from bituminous coals

Patent · Mon Jan 01 00:00:00 EST 1990

OSTI ID:867576

Pawlak, Wanda ^[1]; Janiak, Jerzy S ^[1]; Turak, Ali A ^[1]; Ignasiak, Boleslaw L ^[1]

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1. Edmonton, CA

A process is provided for removing pyritic sulfur and lowering ash content of bituminous coals by grinding the feed coal, subjecting it to micro-agglomeration with a bridging liquid containing heavy oil, separating the microagglomerates and separating them to a water wash to remove suspended pyritic sulfur. In one embodiment the coal is subjected to a second micro-agglomeration step.

• Research Organization: Electric Power Research Institute, Inc. (Palo Alto, CA)
• DOE Contract Number: FG22-87PC79865
• Assignee: Electric Power Research Institute, Inc. (Palo Alto, CA)
• Patent Number(s): US 4966608
• OSTI ID: 867576
• Country of Publication: United States
• Language: English

Related Subjects

process
removing
pyritic
sulfur
bituminous
coals
provided
lowering
ash
content
grinding
feed
coal
subjecting
micro-agglomeration
bridging
liquid
containing
heavy
oil
separating
microagglomerates
water
wash
remove
suspended
embodiment
subjected
step
feed coal
pyritic sulfur
liquid containing
ash content
containing heavy
heavy oil
removing pyritic
water wash
bridging liquid
bituminous coal
bituminous coals
/44/209/