Heating and Cooling of an Aluminium-Cased Parallel Flow Microreactor for Steam-Methane Reforming

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Abstract:

A prototype aluminium microreactor for steam methane reforming process to produce hydrogen syngas, with parallel flow microchannels was developed. The microreactor was heated up to 400°C using a Bunsen burner at distance of 10mm below it surface. Whereby two condition of burner open flow which are 1/3 and 2/3 took place in order to investigate its heating effect on outlet stream temperature. From the results, show that both Bunsen burner flow slightly show the same tendency of increasing and decreasing state, which indicated the optimum point of heat transfer to the systems for a cycle. But, the 2/3 opening Bunsen burner flow give the reliable contact reaction time at minimum operating condition of 400 °C and 1 bar compare to 1/3 opening. This is due to its ability for lays above the set temperature point with longest duration time. From this results can conclude that, the relationship between contact flame area and microreactor surface on outlet flow temperature had been developed. The outlet stream temperature is proportional to the Bunsen burner opening, based on biggest area of flame contact yield the highest optimum temperature point with longest reaction time.

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[1] Heinzel A, Vogel B, Hiugner P., Reforming of natural gas hydrogen generation for small scale stationary fuel cell systems. J. Power Sources, 105 (2002) 202–207.

DOI: 10.1016/s0378-7753(01)00940-5

Google Scholar

[2] Wang F., Qi B., Wang G., Li L. Methane steam reforming: Kinetics and modeling over coating catalyst in micro-channel reactor. International J. Hydrogen Energy. 38 (2013) 5693-5704.

DOI: 10.1016/j.ijhydene.2013.03.052

Google Scholar

[3] Barnali B., Narayan C.P., Swati N. 2013. Production of hydrogen by steam reforming of methane over alumina supported nano-NiO/SiO2 catalyst. Cat. Today . 207 (2013) 28– 35.

DOI: 10.1016/j.cattod.2012.04.011

Google Scholar

[4] Chunshe, C., Yong, W., Robert, T.R. Heterogeneous reactor model for steam reforming of methane in a microchannel reactor with microstructured catalysts. Cat. Today, 110 (2005) 92–97.

DOI: 10.1016/j.cattod.2005.09.004

Google Scholar

[5] Kolb, G., Schurer, J., Tiemann, D., Wichert, M., Zapf, R., Hessel, V., Lowe, H. Fuel processing in integrated micro-structured heat-exchanger reactors, J. Power Sources, 171 (2007) 198–204.

DOI: 10.1016/j.jpowsour.2007.01.006

Google Scholar

[6] Ayabe. Catalytic autothermal reforming of Methane and propane over supported metal catalys, Applied Catalysis A: General, 241(2003) 261-269.

DOI: 10.1016/s0926-860x(02)00471-4

Google Scholar

[7] Palm, C., Cremer, P., Peters, R., Stolten, D. Small-scale testing of a precious metal catalyst in the autothermal reforming of various hydrocarbon feeds, J. Power Sources, 106 (2002) 231 –237.

DOI: 10.1016/s0378-7753(01)01018-7

Google Scholar