Browse Editions : 1999 / Q4
Title Author Edition
Improving commercial hydrocracking performance

Stuart Frazer and Warren Shirley, The New Zealand Refining Company Ltd.

1999 / Q4

A description of the commercial success that came from implementing a strategy to improve hydrocracking unit performance, including the methods used for controlling polynuclear aromatics and their effect on performance
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Advances in biocatalytic desulphurisation

Elaine A Lange and Michael A Pacheco, Energy BioSystems Corporation.

1999 / Q4

Significant advances have been made towards practical applications of biodesulphurisation technology through reduction in process costs and development of chemical co-products from waste sulphur materials.  Recent work in process and product development are reviewed here.
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The drive for refinery energy efficiency

Steve M Brown, Linnhoff March Ltd

1999 / Q4

Total Site analysis, apart from improving a refinery's energy effeciency, also brings capital avoidance in site expansion, process unit debottlenecking and other benefits.  This article describes how it was applied to a real life problem.
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Optimising resid FCC unit catalyst design.

Stephen J Yanik, Paul O'Connor, Anton H Pichel, Akzo Nobel Catalysts
Makoto Nakamura, Nippon Ketjen Company Ltd.

1999 / Q4

A review of the advantages of applying the latest residue FCC unit catalyst design technologies.  The authors also discuss improvements in small-scale catalyst evaluation techniques for predicting the commercial benefits.
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A cheaper way of alkylating propylene and amylenes

J Randall Peterson, David C Graves, Ken Kranz, David M Buckler, Stratco Inc

1999 / Q4

The authors describe how propylene and amylenes can be alkylated using much less sulphuric acid catalyst.  When a propylene-rich feed is alkylated at high acid strengths, or amylene-rich feed is alkylated at low strengths, acid consumption is similar to that of butylenes.
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Computational fluid dynamics: understanding unit operations

Derek A Colman, BP Amoco Chemicals

1999 / Q4

An account of six cases in which CFD - computational fluid dynamics - was used not only to aid in understanding and solving existing process problems but also to assist in the design of new process operations.
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Advances in a catalyst cooler technology

Tiny Y Chan and Dalip S Soni, ABB Lummus Global Inc
Zhang Fuyi, Luoyang Petrochemical Engineering Corporation/Sinopec

1999 / Q4

New concepts have been brought to a well proven catalyst cooler technology.  In this article reliability and flexibility of operation is assessed, and commercial experience of the technology in over 20 FCC units is discussed.
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Thermal conversion in power integrated refinery schemes

Frans A M Schrijvers, Peter J W M van den Bosch, Brugt A Douwes, Shell International Oil Products BV

1999 / Q4

New and economically attractive options for an established technology like visbreaking are opening up as a result of the growing relationship between the industrial sectors of refining and electricity generation, say the authors.
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Shell and tube heat exchanger applications

Cecil C Gentry, Matthew C Gentry, Geoffrey E Scanlon, Phillips Petroleum Company

1999 / Q4

Although they were originally designed to deal with tube vibration and the equipment failures that this could cause, the use of Rodbaffles has spread to a wide range of applications in the petrochemical and other industries.
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Transient analysis of a utility steam system.

Brian D Bumgarner, Scott Ray, Surajit Dasgupta, John R Cassata, Kellogg Brown & Root

1999 / Q4

Dynamic simulation in the analysis of complex interactive systems has proved valuable in determining what effects variations in the dynamic characteristics of a package boiler would have on overall system performance.
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Effective coke inhibition in pyrolysis furnaces

S E Babash and T N Mukhina, VNIIOS Institute, Moscow

1999 / Q4

Description of a technology with the potential for continuous operation of ethylene pyrolysis furnaces without periodic shutdown for coke removal.  In this article the authors present their work in two parts: 1. Conceptual aspects of coke formation, and 2. Practical application in a Russian ethylene plant.
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Applying advanced process controls to fired heaters

Lee E Turpin and William J Korchinski, Aspen Technology Inc

1999 / Q4

Some of the key issues involved in automation of heater firing are highlighted in this article, which aims to help operators improve firebox management.  Case studies are presented, along with common mistakes that cost money.
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Multiple utilities optimisation to improve process economics.

H K Shethna, H Singh, Y Makwana, F J L Castillo, Hyprotech Ltd
U V Shenoy, Indian Institute of Technology.

1999 / Q4

An outline of the methodology for computing optimal load targets as an important factor in arriving at overall optimal cost targets when external utilities are needed to meet a process plant's heating and colling requirements.
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Olefin oligomerisation with homogeneous catalysis

Helene Olivier-Bourbigou, Jean-Alain Chodorge, Philippe Travers, IFP

1999 / Q4

Although homogeneous catalysis is not as widely used in hydrocarbon processing as heterogeneous catalysis there are industrial applications where the former, in liquid phase, has many advantages, including relatively high selectivity and product purity, low investment and mild operating conditions.
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Simulating coke formation in gas quenchers

M Sadrameli, H Ebadi, J Towfighi, Tarbiat Modarres University.
A Sharifi, Arak Petrochemical Complex

1999 / Q4

A major requirement in ethylene production is the ability to predect exchanger parameters, particularly coke thickness inside exchanger tubes.  This article presents the results of a computer simulation of a naphtha pyrolysis quench cooler, or transfer line exchanger (TLX), at Arak Petrochemical Complex, Iran.
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