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Hydrogen recovery from cyclohexane as a chemical hydrogen carrier using a palladium membrane reactor |
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| Authors: | Naotsugu Itoh Eisuke Tamura Shigeki Hara Tomohiro Takahashi Atsushi Shono Kazumi Satoh Takemi Namba |
| Affiliation: | a National Institute of Advanced Industrial Science and Technology, AIST Central-5, Tsukuba 305-8565, Japan b Science University of Tokyo, Tokyo 162-8601, Japan c NOK Tsukuba Technical Laboratory, Wa-dai 25, Tsukuba 300-4247, Japan |
| Abstract: | A palladium membrane reactor was applied to recover the hydrogen from cyclohexane as one of the promising chemical hydrogen carriers. The operation conditions of the palladium membrane reactor to obtain a higher hydrogen recovery were predicted by computer simulation. As a result, it was shown that the hydrogen recovery rate becomes higher as the pressure on the hydrogen permeation side is lowered below atmospheric pressure or as the reaction pressure increases. This was confirmed experimentally. As the perm-side pressure was lowered, the conversion as well as the hydrogen recovery rate at 573 K was found to increase. About 80% of the hydrogen contained in cyclohexane, depending on the operation condition was successfully recovered. |
| Keywords: | Hydrogen carrier Cyclohexane Dehydrogenation Membrane reactor Palladium |
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