Upgrading Low Value Refinery Streams into Electrode Grade Petroleum Pitch
IR@IIP: CSIR-Indian Institute of Petroleum, Dehradun
View Archive Info| Field | Value | |
| Creator |
Srivastava,Manoj
Gupta,(Ms)S Thapliyal,M Aloopwan,M.K.S Kaushik,R.S Singh,I.D Anwar,M Garg,M.O |
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| Date |
2009-06-23T10:43:58Z
2009-06-23T10:43:58Z 2009-06-23T10:43:58Z |
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| Identifier |
http://hdl.handle.net/123456789/255
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| Description |
Petroleum pitch is an excellent precursor for a number of advanced
carbon materials such as carbon fibres, carbon molecular sieves,
mesocarbon micro-beads, activated carbon spheres, needle coke
etc. Some of the refinery streams have good potential for making
pitches. These streams are the by-products of petroleum refining
processes. Currently, these streams are being sold as low value
‘fuel oils.’ The present study has been carried out to examine the
feasibility of making electrode grade impregnating pitches from
aromatic extract of waxy distillates, a by-product of lube refining.
Pitches were prepared by thermally induced polymerization and
condensation of aromatic extracts obtained by solvent extraction
of waxy distillates. It was found that, it is possible to produce
quality-impregnating pitches from aromatic extracts. These pitches
are of good quality having key properties like softening point
(112–128 C), coking value (>45 wt%) and quinoline insolubles
(<1 wt%), and are well comparable with Ashland’s A-240 pitch
which is used as impregnating pitch in graphite electrode plants world
over. Average structural parameters (Har, a-Ph, b-CH2, g-CH3 etc.)
of these pitches have been computed from NMR spectra and used for
comparison purpose. It appears that integration of pitch making
process in refineries will improve the profitability by converting
low value aromatic extracts into high priced petroleum pitches.
Key Words: Aromatic extract; Thermal soaking; Petroleum pitch.
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| Language |
en_US
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| Subject |
Aromatic extract
Thermal Soaking Petroleum Pitch |
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| Title |
Upgrading Low Value Refinery Streams into Electrode Grade Petroleum Pitch
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| Type |
Article
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