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Low temperature distillation

Abstract

To recover gas, oil tars, and coked residues by low temperature distillation from bituminous coals, lignites, oil shales, and the like, the raw material is fed from a hopper into a rotary retort which is zonally heated, the temperature being greatest at the discharge end. The material is heated first to a relatively low temperature, thereby removing the moisture and lighter volatiles which are withdrawn through a pipe by the suction of a pump, while the higher boiling point volatiles and fixed gases are withdrawn by suction through an outlet from the higher temperature zone. The vapors withdrawn from the opposite ends of the retort pass through separate vapor lines and condensers, and the suction in each end of the retort, caused by the pumps, is controlled by valves, which also control the location of the neutral point in the retort formed by said suction. Air and inert gas may be introduced into the retort from pipe and stack respectively through a pipe, and steam may be admitted into the high temperature zone through a pipe.
Publication Date:
Apr 09, 1929
Product Type:
Patent
Report Number:
AU 19370
Reference Number:
EDB-81-097438
Subject:
04 OIL SHALES AND TAR SANDS; 01 COAL, LIGNITE, AND PEAT; BITUMINOUS COAL; DISTILLATION; CARBONACEOUS MATERIALS; LIGNITE; OIL SHALES; RETORTS; DESIGN; COKE; GASES; LOW TEMPERATURE; RECOVERY; STEAM; VOLATILITY; BITUMINOUS MATERIALS; BLACK COAL; BROWN COAL; CHEMICAL REACTORS; COAL; DISTILLATION EQUIPMENT; ENERGY SOURCES; EQUIPMENT; FLUIDS; FOSSIL FUELS; FUELS; MATERIALS; SEPARATION PROCESSES; 040402* - Oil Shales & Tar Sands- Surface Methods; 010406 - Coal & Coal Products- Pyrolysis & Cracking- (-1987)
OSTI ID:
6379749
Country of Origin:
Australia
Language:
English
Submitting Site:
TIC
Size:
Pages: v
Announcement Date:

Citation Formats

Vandegrift, J N, and Postel, C. Low temperature distillation. Australia: N. p., 1929. Web.
Vandegrift, J N, & Postel, C. Low temperature distillation. Australia.
Vandegrift, J N, and Postel, C. 1929. "Low temperature distillation." Australia.
@misc{etde_6379749,
title = {Low temperature distillation}
author = {Vandegrift, J N, and Postel, C}
abstractNote = {To recover gas, oil tars, and coked residues by low temperature distillation from bituminous coals, lignites, oil shales, and the like, the raw material is fed from a hopper into a rotary retort which is zonally heated, the temperature being greatest at the discharge end. The material is heated first to a relatively low temperature, thereby removing the moisture and lighter volatiles which are withdrawn through a pipe by the suction of a pump, while the higher boiling point volatiles and fixed gases are withdrawn by suction through an outlet from the higher temperature zone. The vapors withdrawn from the opposite ends of the retort pass through separate vapor lines and condensers, and the suction in each end of the retort, caused by the pumps, is controlled by valves, which also control the location of the neutral point in the retort formed by said suction. Air and inert gas may be introduced into the retort from pipe and stack respectively through a pipe, and steam may be admitted into the high temperature zone through a pipe.}
place = {Australia}
year = {1929}
month = {Apr}
}