Carbon membrane reactor

Figure 2.1. Carbon membrane reactor and cyclohexane conversion as a function of feed rate. From Itoh and Haraya [2.25], with permission from Elsevier Science.

Sznejer G., Sheintuch M. 2004. Application of a carbon membrane reactor for dehydrogenation reactions. Chemical Engineering Science 59 2013-2021. 

Fig. 9.5 Left side Pd-Ag membrane reactor isobutene conversion vs. feed space velocity, compared with equilibrium-limited and fixed-bed reactor (argon swept, T = 723 K, after [33]) right side carbon membrane reactor conversion, in the countercurrent sweep and vacuum modes, as a function of feed molar flows at 500°C also denoted are the conventional (non-membrane) reactor conversion and the simulated countercurrent sweep mode behavior (after [23])...

Zhang X et al (2006) Methanol steam reforming to hydrogen in a carbon membrane reactor system. Ind Eng Chem Res 45 7997-8001... 

Itoh N, Haraya K (2000) A carbon membrane reactor. Catal Today 56 103-111... 

The application of carbon membrane reactors for the dehydrogenation of cyclohexane into benzene was investigated by Itoh and Haraya. They found a higher conversion for the carbon membrane reactor comparing to the normal reactor, which was caused by the chemical reaction shifti ng to the product side due to the preferential permeation of H2. Sznejer and Sheintuch studied the dehydrogenation of isobutane to isobutene in a membrane reactor equipped... 

Figure 15.16 Schematic diagram of hollow fiber carbon membrane reactor.

Sa, S., Sousa, J. M., Mendes, A. (2011). Steam reforming of methanol over a Cu0/Zn0/Al203 catalyst part It a carbon membrane reactor. Chemical Engineering Science, 66, 5523-5530. 

Itoh, N., Haraya, K. (2000). A carbon membrane reactor. Catalysis Today, 56, 103—111. 

A carbon membrane reactor constitutes one of the most promising applications of carbon membranes. The performance of a carbon membrane for gas separation and for the dehydrogenation of cyclohexane to benzene was examined by Itoh and Ha-raya [29], They concluded that the performance of their caibon membrane reactor for dehydrogenation was fairly good compared with that of a normal reactor, i.e. functioning at equilibrium [29], On the other hand, Lapkin [30] used a macro-porous phenolic resin carbon membrane as a contactor for the hydration of propene in a catalytic reactor. He found that the use of this porous contactor-type reactor for his high-pressure catalytic reaction is practical. 

ItohN, Haraya K (2000) A carbon membrane reactor. Catal Today 56 (1-3) 103-111 Lapkin A (1999) Hydration of propene using a porous carbon membrane contactor. Membr Technol 116 5-9... 

Lapkin, A.A., Tennison, S.R. and Thomas, W.J. (2002) A porous carbon membrane reactor for the homogeneous catalytic hydration of propene. Chemical Engineering Science, 57, 2357-2369. 

In this chapter, we first give an overview of carbon membrane materials (Section 10.2) and the classification of carbon membranes (Section 10.3). Then, unsupported carbon membranes, based on planar membranes and asymmetric hollow fiber membranes are discussed (Section 10.4). In Section 10.5, the supported CMSMs are reviewed in detail in terms of precursors, supports, fabrications and problems. In Section 10.6, carbon-based membrane reactors are discussed in detail, based on the topics of dehydrogenation reactions, hydration reactions, hydrogen production reactions, H2O2 synthesis, bio-diesel synthesis, and new carbon membranes for carbon membrane reactors (CMRs). In the end, the new concept of using carbon membranes in microscale devices (microcarbon-based membrane reactor) is outlined (Section 10.7). 

M. Sheintuch, I. Efremenko, Analysis of a carbon membrane reactor from atomistic simulations of single-file diffusion to reactor design, Chem. Eng. 5d., 2004, 59,4739 746. 

A. A. Lapkin, S. R. Tennison, W. J. Thomas, A porous carbon membrane reactor... 

Sa S, Sousa J M, Mendes A (2011) Steam reforming of methanol over a CuO/ZnO/ AI2O3 catalyst part II A carbon membrane reactor. Chem Eng Sci, 66(22), 5523-5530. 

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