Browse Editions : 2004 / Catalysis
Title Author Edition
Recycling of precious metal catalysts

Christian Hagelüken Michel Verhelst, Umicore Precious Metals Refining

2004 / Catalysis

A look at the best available technologies for efficient and environmentally sound recycling of complex spent catalysts used in both oil refining and petrochemical processes



More

Catalyst bed protection
Damien R MacCord, RPA Process Technologies

 

2004 / Catalysis

Liquid filtration systems protect fixed-bed reactors from contamination, leading to extended catalyst life and longer run lengths. Major factors to consider when selecting a filtration system are discussed

More

Assessing catalyst quality

Pierre Dufresne Fréderic Jardin François Locatelli, Eurecat SA

2004 / Catalysis

Increases in ultra-low sulphur fuel production will require new catalytic tests to assess the reusability of regenerated HDS catalysts. New surface area and activity correlations needed for these tests are discussed


More

Maximising hydrocracker profitability Mike Gunter Criterion Catalyst Company
Diana Altrichter Zeolyst International

 

2004 / Catalysis

Hydrocracking unit product quality and yields improve with stacked bed loading technology. The catalysts loaded in each bed are customised for changes in reactor conditions encountered throughout the unit’s typical run length


More

Raising FCC catalyst circulation Warren Letzsch David Banks, Stone & Webster Inc

 

2004 / Catalysis

Extra cat feed and increased profits with quality products can come from improved catalyst circulation as a result of better slide-valve pressure differential, optimised standpipe diameter and withdrawal well design



More

Pre-treatment improves FCC performance
Per Zeuthen Haldor Topsøe A/S

 

2004 / Catalysis

Feedstock hydrotreatment catalyst provides improved HDS and HDN activity at various unit operating pressures. The resulting economic benefits are gained through better product yield structures and longer pre-treatment cycles


More

Maximisation of FCCU LPG olefinicity

José Marchena José Manuel Llanes Mari Fe Elía CEPSA
Sergio Sobrinos Fernando Sánchez Grace Davison

2004 / Catalysis

A 35 per cent increase in C3/C4 olefins yield was achieved by a refinery in Spain using the right combination of operating variables, additives and catalysts without changing the reactor-regenerator configuration


More

Advanced FCC catalysts for VGO applications

Ray Fletcher Akzo Nobel Catalysts bv

2004 / Catalysis

High-accessibility catalysts allow more difficult feedstocks to be processed through the FCC. These new formulations can add considerable value to refiners running more conventional feeds, but who may have hardware or operating constraints limiting unit performance



More

Optimising FCC unit performance

Hugh Niblock BP
Marius Vaarkamp Maarten van Vliet Engelhard Corporation

2004 / Catalysis

 Additive currently used in several FCC units increases conversion and gasoline yield without exceeding coke or gas limits. The resulting operating flexibility provided by the additive at an Australian refinery is discussed


More

FCC catalyst evaluation Sanjay Bhargava KBC Advanced Technologies Ltd

 

2004 / Catalysis

A post audit at a Japanese refinery using a proprietary FCC model and catalyst-evaluation methodology determines a real improvement in profitability. The methodology for isolating the effect of catalyst alone on FCC yields is discussed



More

Gasoline sulphur removal and olefins reduction

Fang Xiangchen Zhao Leping Hu Yongkang FRIPP/SINOPEC
Guo Hongchen Dalian University of Technology

2004 / Catalysis

Newly developed olefins-to-aromatic-and-alkylate technology significantly reduces the amount of sulphur and olefins in full-range FCC gasoline, resulting in higher gasoline yields and low road octane


More

Advances in hydrogen plant catalyst Peter V Broadhurst Johnson Matthey Catalysts

 

2004 / Catalysis

Catalysts have a significant impact on steam-reforming plant rate and reliability. Catalyst selection depends on feedstocks, operating conditions and reformer design. Important criteria include activity, shape and size of the catalyst


More

Optimised hydrogen production Jürgen Bezler Süd-Chemie AG, Catalytic Technologies

 

2004 / Catalysis

This article describes advances in steam-reforming catalysts for meeting the increased demand for hydrogen in refinery operations. Retrofit options such as installation of a pre-reformer are also discussed



More


Go Back