Modificationen und Betriebserfahrungen an einer Mitteldestillatentschwefelung

摘要

Ruhr Oel GmbH, a joint venture bet-ween BP and PDVSA, is operating a HDS-unit at their facilities at Gelsenkir-chen-Scholven. The product of this unit is a major blend component for Diesel fuel. Driven by ambitious German environmental policy and by an agreement between the German car and oil industry on the one side and the government on the other side, more stringent low sulphur fuels will be introduced in Germany much earlier than in the rest of the European Union. In view of this background a project was developed to realise the new product specifications with minimum investment. In cooperation between the refinery, company research facilities and the catalyst supplier (AKZO NOBEL), pilot plant tests were performed to find out the best catalyst system and the new process conditions. Based on this, an existing HDS-unit was revamped. After the revamp, the unit produce Diesel fuel with 50 ppm Sulphur content, testruns for 10 ppm were carried out successfully. These results were demonstrated in this article.