کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
158506 457010 2007 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Methanation of carbon dioxide by hydrogen reduction using the Sabatier process in microchannel reactors
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی مهندسی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
Methanation of carbon dioxide by hydrogen reduction using the Sabatier process in microchannel reactors
چکیده انگلیسی

This paper describes the development of a microchannel-based Sabatier reactor for applications such as propellant production on Mars or space habitat air revitalization. Microchannel designs offer advantages for a compact reactor with excellent thermal control. This paper discusses the development of a Ru–TiO2Ru–TiO2-based catalyst using powdered form and its application and testing in a microchannel reactor. The resultant catalyst and microchannel reactor demonstrates good conversion, selectivity, and longevity in a compact device. A chemically reacting flow model is used to assist experimental interpretation and to suggest microchannel design approaches. A kinetic rate expression for the global Sabatier reaction is developed and validated using computational models to interpret packed-bed experiments with catalysts in powder form. The resulting global reaction is then incorporated into a reactive plug-flow model that represents a microchannel reactor.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Chemical Engineering Science - Volume 62, Issue 4, February 2007, Pages 1161–1170
نویسندگان
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