Autothermal membrane reactor

FIGURE 13.51 Schematic representation of an autothermal membrane reactor. (Reprinted from Int. J Hydrogen Energy, 35, S. Tosti, Overview of Pd-based membranes for producing pure hydrogen and state of art at ENEA laboratories, 12650-12659, Copyright 2010, with permission from Elsevier.)... 

Autothermal reaction of ethanol through Pd-Ag membrane reactor prepared by sequential electroless deposition... 

Hydrocarbon Reforming 4 [HCR 4] Compact Membrane Reactor for Autothermal Methane Reforming... 

Gasoline and other higher hydrocarbons may be converted to hydrogen on board cars by the autothermal processes, using suitable catalysts (Ghen-ciu, 2002 Ayabe et ah, 2003 Semelsberger et ah, 2004). Partial oxidation may also be combined with the palladium-catalyst membrane reactors mentioned in section 2.1.1 (Basile et ah, 2001). 

Patil, C.S., van Sint Annaland, M., and Kuipers, J.A.M. Design of a novel autothermal membrane-assisted fluidized-bed reactor for the production of ultrapure hydrogen from methane. Industrial Engineering Chemistry Research, 2005, 44 (25), 9502. 

Figure 9.11. Feed-side CO and C02 mole fraction profiles along the length of membrane reactor for autothermal reforming syngas. (Reprinted with permission from Huang et al.,6 Copyright 2005 Elsevier.)...

Figure 9.18. Feed-side temperature profiles along the length of membrane reactor for autothermal...

Elucidated the effects of system parameters on the membrane reactor for s5mthesis gases from steam reforming and autothermal reforming. 

We have developed a mathematical model for the countercurrent WGS membrane reactor with a CO2-selective membrane in the hollow-fiber configuration using air as the sweep gas. With this model, we have elucidated the effects of system parameters on the novel WGS membrane reactor for synthesis gases from steam reforming and autothermal reforming. The modeling results show that H2 enhancement via CO2 removal and CO reduction to 10 ppm or lower are achievable. For comparison and the completeness of the modeling work, we have also developed a similar model for the cocurrent WGS membrane reactor. 

Figure 2. Profiles of Carbon Monoxide Mole Fractions in the Hydrogen Products Along the Countercurrent Membrane Reactors for the Synthesis Gases With (1) 18.63% CO from Steam Reforming and (2) 5% CO from Autothermal Reforming...

Patil, C.S., Annaland, M.V. and Kuipers, J. A.M., 2005. Design of a Novel Autothermal Membrane-Assisted Fluidized-Bed Reactor for the Production of Ultrapure Hydrogen from Methane. Industrial Engineering Chemistry Research, 44(25) 9502-9512. 

Few studies are reported in literature dealing with the integration of an autothermal reforming reactor with a membrane for hydrogen separation, and most of them are simulation studies. 

The laboratory plant employed for the catalytic activity tests in the presence of a membrane integrated in the autothermal reforming reactor is reported in Fig. 6.1. 

Tiemersma TP, Patil CS, van Sint Annaland M, Kuipers JAM (2006) Modelling of packed bed membrane reactors for autothermal production of ultrapure hydrogen. Chem Eng Sci 61 1602-1616... 

Gallucci F, Van Sint Annaland M, Kuipers JAM (2008) Autothermal reforming of methane with integrated CO2 capture in a novel fluidized bed membrane reactor. Part 1 experimental demonstration. Top Catal 51 133-145... 

Autothermal reforming Integrated membrane reactor 5-20% Chap. 6... 

Packed bed membrane reactors have been used for producing hydrogen via reforming of methane, reforming of alcohols, autothermal reforming, partial oxidation of methane, water gas shift, etc. 

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