Flash pyrolysis coal liquefaction process development. Quarterly report, July--September 1976
Year: 1976
Type: report
Abstract: The ORC process consists of rapidly pyrolyzing coal particles at a temperature of less than 1400/sup 0/F in an entrained stream of hot coal char and a gas substantially free of oxidizing constituents. The evolved char, liquid and gas are recovered as products, with at least a portion of the char being heated and returned to the pyrolysis reactor. The purpose of this program is to conduct extended Process Development Unit (PDU) testing of the ORC pyrolysis process to produce liquids from coal to obtain scale-up data and an assessment of the commercial viability of the process. Other objectives are: to demonstrate that caking coals can be processed continuously in a specially designed single-stage pyrolysis reactor without oxidative pretreatment and that this method results in a significantly higher yield of liquids than other proposed pyrolysis processes; to conduct extended runs in the three-ton-per-day process development unit so that steady state heat and material balances can be obtained; to produce and recover large quantities of the primary tar and to evaluate methods for upgrading it to a clean fuel or synthetic crude oil; to produce quantities of the char by-products for evaluation as a clean solid fuel substitute for coal; and to obtain sufficient process and environmental data for the detailed design of a larger plant.
DOI: 10.2172/7291250
Authors: E. W. Knell, P. E. Gethard, B. W. Shaw, N. W. Green, S. A. Qader
Language: English
Subfield: Fuel Technology
Field: Energy
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W71671328