Application and thermal properties of hydrogen-rich bark coal

Application and thermal properties of hydrogen-rich bark coal The thermal properties of hydrogen-rich bark coal were investigated by thermogravimetric analysis, Gieseler fluidity analysis, and polarized light microscopy with a heated stage. The liquefaction behavior was studied separately using an autoclave and a stainless-steel microautoclave reactor. The results showed that the thermal behaviors of hydrogen-rich bark coal are anomalous compared to humic coals, with high fluidities (>180,000ddpm) and intense thermal reaction (the highest mass loss rate is 1.11%/°C). The most interesting temperature range for heating bark coal is 410–450°C: the temperatures of maximum volatile loss of the samples used are in this range, the temperatures of maximum fluidity are about 440°C, and the particle size was drastically reduced on heating to 430°C or above. But in this temperature range, liquefaction conversion values were almost the same, even though oil plus gas yield, and preasphaltene and asphaltene yield were clearly influenced by temperature. Considering the thermal behavior and properties of bark coal, some effective utilization ways are suggested, including low-temperature carbonization, co-coking, direct liquefaction, co-processing, and hydrogen production. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Fuel Elsevier

Application and thermal properties of hydrogen-rich bark coal

Loading next page...
 
/lp/elsevier/application-and-thermal-properties-of-hydrogen-rich-bark-coal-hyAEfMubSR
Publisher
Elsevier
Copyright
Copyright © 2015 Elsevier Ltd
ISSN
0016-2361
D.O.I.
10.1016/j.fuel.2015.09.010
Publisher site
See Article on Publisher Site

Abstract

The thermal properties of hydrogen-rich bark coal were investigated by thermogravimetric analysis, Gieseler fluidity analysis, and polarized light microscopy with a heated stage. The liquefaction behavior was studied separately using an autoclave and a stainless-steel microautoclave reactor. The results showed that the thermal behaviors of hydrogen-rich bark coal are anomalous compared to humic coals, with high fluidities (>180,000ddpm) and intense thermal reaction (the highest mass loss rate is 1.11%/°C). The most interesting temperature range for heating bark coal is 410–450°C: the temperatures of maximum volatile loss of the samples used are in this range, the temperatures of maximum fluidity are about 440°C, and the particle size was drastically reduced on heating to 430°C or above. But in this temperature range, liquefaction conversion values were almost the same, even though oil plus gas yield, and preasphaltene and asphaltene yield were clearly influenced by temperature. Considering the thermal behavior and properties of bark coal, some effective utilization ways are suggested, including low-temperature carbonization, co-coking, direct liquefaction, co-processing, and hydrogen production.

Journal

FuelElsevier

Published: Dec 15, 2015

References

You’re reading a free preview. Subscribe to read the entire article.


DeepDyve is your
personal research library

It’s your single place to instantly
discover and read the research
that matters to you.

Enjoy affordable access to
over 18 million articles from more than
15,000 peer-reviewed journals.

All for just $49/month

Explore the DeepDyve Library

Search

Query the DeepDyve database, plus search all of PubMed and Google Scholar seamlessly

Organize

Save any article or search result from DeepDyve, PubMed, and Google Scholar... all in one place.

Access

Get unlimited, online access to over 18 million full-text articles from more than 15,000 scientific journals.

Your journals are on DeepDyve

Read from thousands of the leading scholarly journals from SpringerNature, Elsevier, Wiley-Blackwell, Oxford University Press and more.

All the latest content is available, no embargo periods.

See the journals in your area

DeepDyve

Freelancer

DeepDyve

Pro

Price

FREE

$49/month
$360/year

Save searches from
Google Scholar,
PubMed

Create lists to
organize your research

Export lists, citations

Read DeepDyve articles

Abstract access only

Unlimited access to over
18 million full-text articles

Print

20 pages / month

PDF Discount

20% off