Transport in packed-bed and wall-coated steam-methanol reformers

Pore-scale simulation of coupled multiple physicochemical thermal processes in micro reactor for hydrogen production using lattice Boltzmann method

“…[42,44]) the packed-bed reactor. Karim et al [42] and Lee et al [43] explained that temperature distribution within the reactor greatly affects the methanol conversion, and for reactor channel with relatively large diameter the temperature near the reactor surface is much higher than that inside the reactor. In the present study, the micro reactor with arrangement of Case 1 can be roughly considered as a wall-coated reactor.…”

Experimental study on the hydrogen production of integrated methanol-steam reforming reactors for PEM fuel cells

“…6 shows the methanol conversion for the three reactors as functions of the reaction temperature and weight hourly space velocity WHSV. The WHSV and methanol conversion h MeOH are defined as [16,32] …”

“…The catalyst was directly coated onto the mesh surface. The method used for catalyst coating is similar to that described in the studies by Lee et al [16] and Bravo et al [28]. Typical results for catalyst coated onto the microchannel, plain channel, and stainless mesh have been shown in Fig.…”

“…The advantages of using multiple channels for reformer are the high surface to volume ratio and heat and mass transfer enhancements [15]. Lee et al [16] pointed out that the heat transfer effectiveness in the wall-coated reformer is much better than that in the packed bed reformer because of the smaller thermal resistance.…”

Effects of structural parameters on the performance of a micro-reactor with micro-pin-fin arrays (MPFAR) for hydrogen production

“…This is attributed to the increased safety and volume efficiency relative to fuel cell vehicles fueled by high-pressure hydrogen [2]. It is widely accepted that the design of the fuel processor for hydrogen production can allow for small volume, small weight, low cost, long lifetime, low byproduct (carbon monoxide), ease of manufacture, low flow resistance and short start-up time [3]. These demands can be met by enhancing the heat and mass transfer of the fuel processor.…”