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Indian coal tars. II

Journal Article:

Abstract

Laboratory experiments were carried out on these efforts: (1) rank and specific-gravity fractions on tar yield; (2) addition of water to the coal charge, or steam during carbonization, on yield of tar and tar acids; (3) the presence of a cracking agent (shale) with and without steam addition on the yield of tar and tar acids (the particular shale used without steam reduced the yield, and the restricted use of steam brought the yield to the former noncatalyzed level); and (4) catalytic effect of three different samples of shale, firebrick, quartz, coke, and silica-alumina on the cracking of tar acids (the most active were two of the shales, a freshly-prepared coke, and the Al/sub 2/O/sub 3/-SiO/sub 2/ catalysts that gave conversion up to 98%). The products were mainly carbon, aromatic hydrocarbons of the naphthalene series and gases (CO and H/sub 2/). The yield of the tar becomes less as coal of lower specific gravity is used or when higher temperatures are used for carbonization. The mineral matter associated with Indian coals acts as a decomposition catalyst for tar acids, as shown by experiments on the decomposition of PhOH at temperatures above 800/sup 0/.
Publication Date:
Jan 01, 1954
Product Type:
Journal Article
Reference Number:
EDB-80-032130
Resource Relation:
Journal Name: J. Sci. Ind. Res.; (India); Journal Volume: 13A
Subject:
01 COAL, LIGNITE, AND PEAT; COAL; CARBONIZATION; COAL TAR; YIELDS; COAL TAR ACIDS; DECOMPOSITION; COKE; CATALYTIC EFFECTS; MINERALS; SHALES; COAL RANK; DENSITY; NAPHTHALENE; STEAM; WATER; AROMATICS; CARBONACEOUS MATERIALS; CHEMICAL REACTIONS; CONDENSED AROMATICS; ENERGY SOURCES; FOSSIL FUELS; FUELS; HYDROCARBONS; HYDROGEN COMPOUNDS; ORGANIC ACIDS; ORGANIC COMPOUNDS; OTHER ORGANIC COMPOUNDS; OXYGEN COMPOUNDS; PHYSICAL PROPERTIES; ROCKS; SEDIMENTARY ROCKS; TAR; 010401* - Coal & Coal Products- Carbonization- (-1987)
OSTI ID:
5539650
Country of Origin:
India
Language:
English
Other Identifying Numbers:
Journal ID: CODEN: JSIRA
Submitting Site:
TIC
Size:
Pages: 217-220
Announcement Date:

Journal Article:

Citation Formats

Basu, A N, Bhatnagar, J N, and Roy, A K. Indian coal tars. II. India: N. p., 1954. Web.
Basu, A N, Bhatnagar, J N, & Roy, A K. Indian coal tars. II. India.
Basu, A N, Bhatnagar, J N, and Roy, A K. 1954. "Indian coal tars. II." India.
@misc{etde_5539650,
title = {Indian coal tars. II}
author = {Basu, A N, Bhatnagar, J N, and Roy, A K}
abstractNote = {Laboratory experiments were carried out on these efforts: (1) rank and specific-gravity fractions on tar yield; (2) addition of water to the coal charge, or steam during carbonization, on yield of tar and tar acids; (3) the presence of a cracking agent (shale) with and without steam addition on the yield of tar and tar acids (the particular shale used without steam reduced the yield, and the restricted use of steam brought the yield to the former noncatalyzed level); and (4) catalytic effect of three different samples of shale, firebrick, quartz, coke, and silica-alumina on the cracking of tar acids (the most active were two of the shales, a freshly-prepared coke, and the Al/sub 2/O/sub 3/-SiO/sub 2/ catalysts that gave conversion up to 98%). The products were mainly carbon, aromatic hydrocarbons of the naphthalene series and gases (CO and H/sub 2/). The yield of the tar becomes less as coal of lower specific gravity is used or when higher temperatures are used for carbonization. The mineral matter associated with Indian coals acts as a decomposition catalyst for tar acids, as shown by experiments on the decomposition of PhOH at temperatures above 800/sup 0/.}
journal = {J. Sci. Ind. Res.; (India)}
volume = {13A}
journal type = {AC}
place = {India}
year = {1954}
month = {Jan}
}