Carbonization behavior of pitches containing fine molybdenum particles

Journal Article · Sun Aug 01 00:00:00 EDT 1993 · Industrial and Engineering Chemistry Research; (United States)

DOI:https://doi.org/10.1021/ie00020a028· OSTI ID:5819944

Ishihara, Atsushi; Wang, Xiangsheng; Kabe, Toshiaki ^[1]; Shono, Hiroaki ^[2]

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1. Tokyo Univ. of Agriculture and Technology, Tokyo, (Japan). Dept. of Chemical Engineering
2. Nitto Boseki Co., Fukushima, (Japan). Mineral Fiber Research Lab.

In the carbonization of coal tar pitch and naphthalene pitch containing fine molybdenum particles, it was found by using a tritium tracer method that the fine molybdenum particles added into pitch in advance can selectively catalyze the dehydrogenation and polycondensation of saturated hydrocarbons below 700 C, and thereby the carbonization yield of coal tar pitch containing partially saturated structures or aliphatic side chains in its component molecules increased. Further, it could be inferred that the fine molybdenum particles mainly accelerate the release of the hydrogen which is difficult to isotopically exchange with water in the preparation of tritiated pitch in the presence of Pt/Al[sub 2]O[sub 3].

• OSTI ID: 5819944
• Journal Information: Industrial and Engineering Chemistry Research; (United States), Vol. 32:8; ISSN 0888-5885
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
MOLYBDENUM
CATALYTIC EFFECTS
PITCHES
CARBONIZATION
COAL TAR
DEHYDROCYCLIZATION
DEHYDROGENATION
EXPERIMENTAL DATA
LABELLED COMPOUNDS
TRACER TECHNIQUES
TRITIUM
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
CHEMICAL REACTIONS
DATA
DECOMPOSITION
ELEMENTS
HYDROGEN ISOTOPES
INFORMATION
ISOTOPE APPLICATIONS
ISOTOPES
LIGHT NUCLEI
METALS
NUCLEI
NUMERICAL DATA
ODD-EVEN NUCLEI
ORGANIC COMPOUNDS
OTHER ORGANIC COMPOUNDS
RADIOISOTOPES
TAR
TRANSITION ELEMENTS
YEARS LIVING RADIOISOTOPES
010409* - Coal
Lignite
& Peat- Pyrolysis & Carbonization- (1987-)