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Distilling solid carbonaceous materials

Patent:

Abstract

In the distillation of solid carbonaceous materials with by-product recovery by direct heating with a gas such as water gas, producer gas, or combustion gas which is passed in counter-flow to the materials, the volume of the gas used is such as to lower the vapor tension of the volatiles to enable the oil vapor to be liberated at temperatures not exceeding 450 to 500/sup 0/C and so that the gaseous mixture may be cooled to from 80 to 100/sup 0/C without causing the highest boiling oil fraction to condense. Coking coals may be subjected to a preliminary heat treatment with gases containing an oxygen content of from 2 to 8 percent to reduce their coking properties, and oxygen may be added to the heating gases to assist the polymerization of resinous bodies. Lubricating oil may be obtained by treating the primary oil with caustic soda to remove tar acids, refining the residue with sulfuric acid, distilling off 25 percent of the refined oil and passing the remainder through a filter press at -5/sup 0/C to extract the paraffin wax. The residue of wax-free oil is distilled to yield a lubricating oil which at normal temperatures has a static coefficient  More>>
Publication Date:
Dec 04, 1926
Product Type:
Patent
Report Number:
GB 287037
Reference Number:
EDB-79-023369
Subject:
01 COAL, LIGNITE, AND PEAT; 04 OIL SHALES AND TAR SANDS; CARBONACEOUS MATERIALS; DISTILLATION; COKING; DEWAXING; HIGH TEMPERATURE; LUBRICATING OILS; PRODUCER GAS; PRODUCTION; WATER GAS; CARBONIZATION; CHEMICAL REACTIONS; DECOMPOSITION; ENERGY SOURCES; FLUIDS; FUEL GAS; FUELS; GAS FUELS; GASES; INTERMEDIATE BTU GAS; LOW BTU GAS; LUBRICANTS; PETROLEUM PRODUCTS; SEPARATION PROCESSES; 010406* - Coal & Coal Products- Pyrolysis & Cracking- (-1987); 040402 - Oil Shales & Tar Sands- Surface Methods
OSTI ID:
6622686
Country of Origin:
United Kingdom
Language:
English
Submitting Site:
TIC
Size:
Pages: v
Announcement Date:
Feb 01, 1979

Patent:

Citation Formats

Nielsen, H, and Laing, B. Distilling solid carbonaceous materials. United Kingdom: N. p., 1926. Web.
Nielsen, H, & Laing, B. Distilling solid carbonaceous materials. United Kingdom.
Nielsen, H, and Laing, B. 1926. "Distilling solid carbonaceous materials." United Kingdom.
@misc{etde_6622686,
title = {Distilling solid carbonaceous materials}
author = {Nielsen, H, and Laing, B}
abstractNote = {In the distillation of solid carbonaceous materials with by-product recovery by direct heating with a gas such as water gas, producer gas, or combustion gas which is passed in counter-flow to the materials, the volume of the gas used is such as to lower the vapor tension of the volatiles to enable the oil vapor to be liberated at temperatures not exceeding 450 to 500/sup 0/C and so that the gaseous mixture may be cooled to from 80 to 100/sup 0/C without causing the highest boiling oil fraction to condense. Coking coals may be subjected to a preliminary heat treatment with gases containing an oxygen content of from 2 to 8 percent to reduce their coking properties, and oxygen may be added to the heating gases to assist the polymerization of resinous bodies. Lubricating oil may be obtained by treating the primary oil with caustic soda to remove tar acids, refining the residue with sulfuric acid, distilling off 25 percent of the refined oil and passing the remainder through a filter press at -5/sup 0/C to extract the paraffin wax. The residue of wax-free oil is distilled to yield a lubricating oil which at normal temperatures has a static coefficient of friction of from .1 to .185. Other specifications are referred to.}
place = {United Kingdom}
year = {1926}
month = {Dec}
}