Honeycomb supports with high thermal conductivity for gas/solid chemical processes

摘要: Abstract The scope of this review article is to address the use novel monolithic catalysts with high thermal conductivity in externally cooled tubular reactors for gas/solid exothermic chemical processes place conventional packed beds catalyst pellets. After discussing analysis and implications heat conduction honeycomb monolith structures, we herein simulation studies experimental investigations showing that near-isothermal reactor operation can be achieved even under very loads by adopting specific materials designs supports associated effective radial conductivities. For such monoliths, limiting resistance located at interface between inner tube wall (“gap resistance”). Recent measurements “gap” transfer coefficient point large values (>400 W/(m 2  K)), which are controlled both tube–monolith clearance actual operating conditions process gas.