Supermodeling reactors for profitability
Article Abstract:
The prerequisites for building and implementing a reliable custom model reactor are discussed. These include reactor or catalyst performance data, reaction mechanism and rate expressions, test facility for model validation, prior experience in analyzing data, establishing reaction mechanisms and rate expressions and determining rate parameters. The major feature of a general model is that it possesses most of the elements required for customization including material and energy balances, interaction of reaction kinetics with heat- and mass-transfer and diffusion pphenomena, mathematical routines for simultaneous solution of equations and parameter estimations, methods to account for physical property changes and phase-transfer behaviors and effects of heat and mass di
Publication Name: Chemical Engineering
Subject: Engineering and manufacturing industries
ISSN: 0009-2460
Year: 2000
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Biocatalysis makes headaway in chemicals
Article Abstract:
Biotechnology companies are developing biocatalysts for the synthesis of polymer and bulk companies. Biocatalysts can perform multistep operations in a single unit without the need to alter the chemical process to adapt to enzymes. In addition, biocatalysts are highly specific and stable and can reduce capital and operation expenditures by 40%-60%. However, industrial enzymes are expensive, which can cost from $10,000-$100,000 per kg.
Publication Name: Chemical Engineering
Subject: Engineering and manufacturing industries
ISSN: 0009-2460
Year: 1999
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For catalyst regeneration, incentives anew
Article Abstract:
Petroleum refiners are resorting to regeneration of their catalysts in order to lessen their waste disposal costs and problems due to landfill restrictions. Demand for catalysts is also expected to increase due to lower limits on sulfur in gasoline. The majority of refiners send their spent catalysts to offsite regeneration service, an option considered environmentally friendly and economical compared to onsite regeneration.
Publication Name: Chemical Engineering
Subject: Engineering and manufacturing industries
ISSN: 0009-2460
Year: 2000
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- Abstracts: Combinatorial chemistry promises better catalysts and materials. Melt crystallization heats up
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