Thermal cracking of petroleum residues: 3. Technical and economic aspects of hydrogen donor visbreaking

The effect of the presence of hydrogen donor diluents on visbreaking (VB) process performances were examined, performing comparative tests under different reaction severities. Results of experiments carried out at bench-scale level, with a vacuum residue of Belaym crude, confirm that the VB performa...

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Bibliographic Details
Published inFuel (Guildford) Vol. 74; no. 5; pp. 756 - 760
Main Authors Del Bianco, A., Garuti, G., Pirovano, C., Russo, R.
Format Journal Article
LanguageEnglish
Published Elsevier Ltd 1995
Subjects
hydrogen
visbreaking
visbreaking
performance
hydrogen
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Summary:The effect of the presence of hydrogen donor diluents on visbreaking (VB) process performances were examined, performing comparative tests under different reaction severities. Results of experiments carried out at bench-scale level, with a vacuum residue of Belaym crude, confirm that the VB performances can be substantially improved by adding hydrogen donor solvents. Provided a proper donor is utilized, the advantages arising in terms of net conversion, product quality and inhibition of coke formation seem to justify the investments needed to pass from VB to hydrogen donor visbreaking (HDV). The economic analysis confirms the attractiveness of this process with a DCFIRR of about 25% and a payout time of 3.4 years.
ISSN:0016-2361
1873-7153
DOI:10.1016/0016-2361(94)00017-L