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Gas Chromatography with Open Tubular Columns in Parallel
Salcedo, Romualdo Luís RiberaDissertation submitted for obtain de degree of Master of Engineering at the Faculty of Graduate Studies and Research of McGill University, Montreal, Canada, under supervision Prof. Dr. O. M. Fuller
Dry-Scrubbing of Acid Gases in Recirculating Cyclones
Chibante, Vania; Fonseca, Ana; Salcedo, RomualdoThis paper describes a laboratory-scale study on the use of recirculating cyclones as reaction chambers for dry scrubbing of gaseous HCl with solid slaked lime particles. This gas cleaning system combines a numerically optimized reverse flow gas cyclone (RS_VHE geometry) with a straight-through cyclone concentrator, which simultaneously increases the capture of the solid particles and promotes their partial rec...
Spreadsheets in chemical engineering education : a tool in process design and p...
Ferreira, E. C.; Lima, Ricardo; Salcedo, RomualdoRecent developments in embedding numerical optimization procedures with linear and nonlinear solvers within a spreadsheet environment have greatly enhanced the use of these tools for teaching chemical process design and process integration. Student skills with respect to these topics are usually gained by complex and expensive modular simulators, e.g. ASPEN Plus® or algebraic tools such as GAMS® or AMPL®. Howev...
A Tool to Optimize VOC Removal During Absorption and Stripping
Ferreira, E. C.; Salcedo, RomualdoPracticing engineers routinely use modular simulators and algebraic tools to perform rigorous process optimizations. These complex tools, however, can have a significant learning curve. Meanwhile, spreadsheet programs are becoming a ubiquitous tool for performing calculations for many chemical process operations [1-4]. In this article, we show how the Solver feature of the Microsoft Excel spreadsheet program ca...
Can Spreadsheet Solvers Solve Demanding Optimization Problems?
Ferreira, E. C.; Salcedo, RomualdoPracticing engineers resort to modular simulators or to algebraic tools such as GAMS or AMPL for performing complex process optimizations. These tools, however, have a significant learning curve unless they have been introduced at the undergraduate level beforehand. In this work we show how the Solver feature of the Excel spreadsheet can be used for the optimization of a fairly complex system, i.e., a classic s...
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