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AM-94-50 CATALYTIC DEWAXING OF VGO AND DIESEL AT OMV’S SCHWECHAT REFINERY
Rick Bertram, Unocal Corporation; Friedrich Danzinger, OMV Energie
Format:
Electronic (digital download/no shipping)
Associate Member, International Member, Petrochemical Member, Refining Member -
$0.00
Government, NonMember -
$35.00
Description:
At OMV’s Schwechat refinery, a Unicracking/DW unit reduces the pour point of high- viscosity VGO by 9OoF with no reduction in viscositv. The unit also removes contaminants, yielding dewaxed products containing <20 wppm nitrogen and < 20 wppm sulfur. The first catalyst cycle lasted 4 years, with feed rates exceeding 125% 0 of design. The first run was terminated for a required inspection, not for lack of catalyst activity. In fact, during the 4-year run, Unocal’s H-80 catalyst showed no detectable activity loss. All products yields were stable throughout the cycle, as was the pour point (-4OF) of the dewaxed product. Product viscosities actually increased as the cycle progressed. During the winter months, the unit is also used to improve the pour point of diesel fuel, yielding low-sulfur products with good color (L 0.5 ASTM) and excellent stability.
Product Details:
Product ID: | AM-94-50 |
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Publication Year: | 1994 |