Chemical Engineering Practice

In this work, we present a multi-scale modeling approach for solar grade silicon production in fluidized bed reactor (FBR) by thermal decomposition of silane. The FBR process has been commercialized by several companies and promises to deliver poly-silicon at reasonable and stable price. Silane...

Simulation Study of Different Alternatives for Isoamyl Butyrate Production by Using Aspen Plus ® Jairo Duran, Karen Cañón, Iván Gil, Gerardo Rodríguez, Julio Vargas Grupo de Procesos Químicos y Bioquímicos. Department of Chemical and Environmental Engineering. Universidad Nacional de Colombia...

A Numerical Study on Bio-Oil Gasification Using A Multicomponent Approach Bio-oil, also called pyrolysis oil, is a complex biorenewable fuel produced from fast pyrolysis of biomass. Since bio-oil is carbon dioxide neutral, it can be an ideal replacement for petroleum fuel to be used in many kinds...

Research over several decades by several institutions has shown that alkali-promoted metal sulfide catalysts are capable of producing mixed alcohols from syngas with high selectivity and yield. Unfortunately, process models suggest that syngas to mixed alcohol processes, and especially...

A transient three-dimensional heat and mass transfer model is developed for a semi-transparent optically large, non-uniform and non-isothermal particle exposed to an external source of high-flux irradiation and undergoing chemical reaction. The model couples radiation, conduction and convection...

Extreme purpose of finding the most cost effective design solution with the least waste generation possible, considering environmental and social impacts in chemical engineering design problems justifies developing a systematic methodology for incorporating sustainability concerns into design and...

Thermochemical water splitting presents a way to store thermal energy in the chemical bonds of a H 2 molecule. Besides becoming an increasingly important energy carrier, hydrogen already has vast importance in petroleum upgrading and ammonia synthesis. In an effort to improve the Sulfur-Iodine...

The effect of solid and gas phase heat recovery on total energy required for an ideal solar-driven carbon dioxide capture cycle based on calcium carbonate/calcium oxide calcination/carbonation is studied. The effect of varying the carbonation and calcination reaction temperatures on total energy...

Introduction The production of transportation fuels from biomass, and the use of biomass as a means of carbon dioxide capture and sequestration have been identified as a strategy with potential to address the energy and environmental concerns, including fuel independence, energy availability and...

Ammonia Borane (AB), with high hydrogen storage capacity (19.5 wt.%), is predicted to be possibly a future fuel for providing pure H 2 to fuel cell at room temperature for on-board and portable applications. However, a heterogeneous catalyst plays a vital role for first initiating and then...