In this contribution the technical feasibility of the reverse flow catalytic
me
mbrane reactor (RFCMR) concept with porous
me
mbranes for energy efficient syngas production is investigated. In earlier work an experi
mental proof of principle was already provided [S
mit, J., Bekink, G.J.,
van Sint Annaland, M., Kuipers, J. A.M., 2005a. A reverse flow catalytic
me
mbrane reactor for the production of syngas: an experi
mental study. International Journal of Che
mical Reactor Engineering 3 (A12)], but co
mpensatory heating was required and proble
ms related to the
mechanical strength of the powder-based YsZ catalyst and the steel filter were reported. Therefore, in Part 1 the perfor
mance of a
me="mml30">method=retrieve&_udi=B6TFK-4M62KCX-1&_mathId=mml30&_user=10&_cdi=5229&_rdoc=29&_acct=C000050221&_version=1&_userid=10&md5=4799254c456c571ee674171a7ac60d90" title="Click to view the MathML source">Rh-Pt/Al2O3 catalyst with i
mproved
mechanical strength and porous
me="mml31">method=retrieve&_udi=B6TFK-4M62KCX-1&_mathId=mml31&_user=10&_cdi=5229&_rdoc=29&_acct=C000050221&_version=1&_userid=10&md5=c97def0d46679f8f015bb53f571070aa" title="Click to view the MathML source">Al2O3 me
mbranes with excellent te
mperature resistance was tested in an isother
mal
me
mbrane reactor. For this purpose a novel sealing technique was developed that could withstand sufficiently high pressure differences and te
mperatures. Very high syngas selectivities close to the ther
modyna
mic equilibriu
m could be achieved for a considerable period of ti
me without any increase in pressure drop and without any decrease in syngas selectivity. Using the
me="mml32">method=retrieve&_udi=B6TFK-4M62KCX-1&_mathId=mml32&_user=10&_cdi=5229&_rdoc=29&_acct=C000050221&_version=1&_userid=10&md5=4ef41849b11128fdf63ebc630c915087" title="Click to view the MathML source">Rh–Pt/Al2O3 catalyst, several experi
ments were perfor
med in a RFCMR de
monstration unit and the influence of different operating conditions and design para
meters on the reactor behaviour was investigated. It is shown that very high syngas selectivities (up to 95%) can be achieved with a
maxi
mal on-strea
m ti
me of 12 h, without using any co
mpensatory heating and despite inevitable radial heat losses. In Part 2 a reactor
model is discussed that can well describe the experi
mental results presented in this part.