AIChE

Gasification of bio-oil is a desirable process to produce syngas as a renewable resource with no net greenhouse gas emissions. Bio-oil is a mixture of hundreds of chemicals derived from fast pyrolysis of biomass. Production of syngas from bio-oil is usually a high pressure (26 bar) and high...

Studies on four leading technologies for industrial CO 2 capture are performed. The technologies are MEA-based chemical absorption, multi-stage membrane, pressure swing adsorption (PSA) and vacuum swing adsorption (VSA). Each process is rigorously modeled, optimized, and energy integrated to...

Electrochemical Membrane for Carbon Dioxide Separation and Power Generation Stephen Jolly, Hossein Ghezel-Ayagh, Jennifer Hunt, Dilip Patel FuelCell Energy, Inc., 3 Great Pasture Road, Danbury, CT 06813 William A Steen, Carl F Richardson URS Corporation, 9400 Amberglen Blvd, Austin, TX 78729 Olga A...

Development of synthetic routes for active pharmaceutical ingredient (API) synthesis is increasingly performed using microreactors, because their use can reduce experimental cost (both time and material use), make hazardous reactions safer, and enable more precise control [1,2]. While microreactor...

A rapid thermal swing adsorption system combined with Sabatier reactor was developed to demonstrate the applicability of a NASA microchannel Mars In Situ Propellant Production (ISPP) system. A thermal swing adsorption pump was designed to collect and compress CO 2 by rapidly temperature cycling...

The AACE International recommended practice for estimating process and project contingencies provides a set of contingency factors to be applied to total process capital cost, as a function of process technology development and class of estimate. Process contingency ranges from 0 to 10 percent for...

Automating Molecular Modeling of Gasification with the Kinetic Modelers Toolbox Scott R. Horton*, Craig A. Bennett, Michael T. Klein Department of Chemical & Biomolecular Engineering, University of Delaware Francis P. Petrocelli Air Products and Chemicals, Inc. A molecule-based kinetics model...

One of cornerstones of Quality by Design (QbD) is Design of Experiments (DoE). However, in addition to DoE, ICH Q8 (R2) recommends an enhanced approach to product and process development which is based on mechanistic first principle models. Such predictive models require parameters such as kinetic...

A numerical heat and mass transfer model is presented for a porous medium of cerium dioxide exposed to direct high-flux irradiation and undergoing thermal reduction. The model couples conduction, convection and radiation heat transfer modes to the chemical kinetics of the non-stoichiometric...

Multivariate data analysis methods such as partial least square (PLS) modeling have been increasingly applied to product development, particularly in the quality-by design paradigm. This study applied the PLS modeling to analyze a product development dataset combining a design of experiment study...