Shell middle distillate hydrogenation process

Conference · Sat Dec 31 04:00:00 EST 1994

OSTI ID:231142

Lucien, J P ^[1]; Berg, J.P. van den; Thielemans, G L.B. ^[2]; Germaine, G ^[3]; Gjers, M ^[4]

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1. Companie Rhenane de Raffinage Reichstett, Reichstett Vendenheim (France)
2. Shell Internationale Petroleum Mij., The Hague (Netherlands)
3. Shell Recherche SA, Grand-Couronne (France)
4. Shell Raffinaderi AB, Gothenburg (Sweden)

The strive towards cleaner environment has lead to low sulfur specifications for middle distillate fuels. In addition compositional specifications are presently debated. Thus, to meet future emissions standards regarding, specifically, particulates emissions, the motor industry calls for improved automotive gasoil quality. Although automotive gasoil quality affects emissions from diesel engines it is considered less influential than engine design and maintenance. Sulfur, density and cetane number are the fuel properties having the greatest influence on diesel engine emissions although also aromatics and endpoint specifications have been defined in environmentally adopted government initiatives. This paper reviews the options which are available to tackle these new requirements. The high severity single stage concept (using conventional mixed sulfides catalysts) will be discussed in its potential to meet more severe product requirements as well as in terms of its limitations, especially at the point of aromatics saturation and cetaine upgrading. Furthermore, it is shown that the option of severe hydrotreating followed by hydrogenation with conventional noble metal catalysts is preferred if deep aromatics saturation is aimed at. However, this conventional two stage concept has limitations with respect to heaviness and sulfur and nitrogen content of feedstocks. The new Shell Middle Distillate Hydrogenation (SMDH) technology, applying a (semi) two stage approach based on the Shell developed hydrogenation catalyst is presented. The SMDH process will be discussed in its potential to break the limitations of the conventional options. The new catalyst is crucial in this process and allows a highly integrated mode of operation. A number of applications of this novel process will be discussed.

• OSTI ID: 231142
• Report Number(s): CONF-930364--; ISBN 0-8247-9255-6
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
ANTIKNOCK RATINGS
API GRAVITY
DENITRIFICATION
DESULFURIZATION
DIESEL FUELS
HYDROGENATION
PETROLEUM DISTILLATES
POLLUTION REGULATIONS
SPECIFICATIONS
SULFUR CONTENT
TECHNOLOGY ASSESSMENT