Membrane reactors inorganic

Inorganic Membrane Reactors to Enhance the Productivity of Chemical Processes... 

Table 7.2. Summarized Results on Inorganic Membrane Reactors Used for Decomposition Reactions... 

INORGANIC MEMBRANE REACTORS TO ENHANCE PRODUCTIVITY 187 Table 7.3. Membrane Reactor Studies on Dehydrogenation Reactions... 

The other major issue in reactor design concerns catalyst deactivation and membrane fouling. Both contribute to loss of reactor productivity. Development of commercially viable processes using inorganic membrane reactors will only be possible if such barriers are overcome. These subjects will receive greater attention as current R D efforts expand beyond laboratory scale evaluations into field demonstrations. 

Use of inorganic membrane reactors to enhance productivity of chemical processes limited by thermodynamic constraints... 

H.P. Hsieh, Inorganic Membrane Reactors A Review, in Membrane Reactor Technology, R. Govind and N. Itoh (eds), AIChE Symposium Series Number 268, AIChE, New York, NY, Vol. 85, pp. 53-67 (1989). 

Armor, ). N., Applications of catalytic inorganic membrane reactors to refinery products, J. Membr. Sci. 1998, 347 (2), 217-233. 

V. T. Zaspalis, A. J. Burggraaf, Inorganic membrane reactors to enhance the productivity of chemical processes, in Inorganic membranes synthesis, characteristics and applications,... 

G. Sarracco and V. Specchia, Catalytic Inorganic Membrane Reactors Present Experience and Future Opportunities , Catal. Rev. Sci. Eng., 36 [2] 305-84 (1994). 

The inorganic membrane reactor technology is in a state characterized by very few in practice but many of promise. Since the potential payoff of this technology is enormous, it deserves a close-up look. This and the following three chapters are, therefore, devoted to the review and summary of the various aspects of inorganic membrane reactors applications, material, catalytic and engineering issues. 

In addition to the above potential process economic benefits, inorganic membrane reactors can also result in a safer operating environment. Some combustion reactions involve rapid release of energy when the reactants are mixed in a batch or bulk mode. Carefully controlled addition of a critical reactant (e.g., oxygen) to the reaction system (e.g., fuel) from opposite sides of the membrane reactor can minimize the potentials for... 

The advent of reliable quality ceramic membranes entering the industrial market has heightened the interest for porous inorganic membrane reactors at high temperatures,... 

Given in Table 8.8 is a summary of experimental data available on dehydrogenation reactions using porous inorganic membrane reactors with a variety of catalysts. Some of those reactions are industrially important and will be discussed separately as follows. 

Dehydrogenation of cyclohexane to benzene. Another well studied reaction using porous inorganic membrane reactors is dehydrogenation of cyclohexane to make benzene. The operable temperature range is from about 170 to 3 X using a precious metal (e.g., Pt or Pd) as the catalyst either impregnated in the membrane pores or on a carrier such as alumina or silica. 

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