CHARACTERISTIC OF ARGON PLASMA JET FROM METHANE HYDRATE DECOMPOSITION FOR HYDROGEN PRODUCTION

• Main Authors: Shinfuku, Nomura, Ismail, Rahim, Shinobu, Mukasa, Hozutaka, Tanaka, Jumpei, Tokuda
• Format: Article in Journal/Newspaper
• Language: English
• Published: Begell House Inc. 2018
• Subjects: FAKULTAS TEKNIK; Pendidikan Teknik Otomotif; KARYA ILMIAH DOSEN; Methane hydrate
• Online Access: http://eprints.unm.ac.id/21559/; http://eprints.unm.ac.id/21559/2/CHARACTERISTIC%20OF%20ARGON%20PLASMA%20JET%20FROM%20METHANE%20HYDRATE%20DECOMPOSITION%20FOR%20HYDROGEN%20PRODUCTION.pdf; http://eprints.unm.ac.id/21559/1/Prosiding%20Internasional-Characteristic%20of%20Argon%20Plasma.pdf; http://eprints.unm.ac.id/21559/3/%28Turnitin%29-IHTC-16.pdf; https://ihtcdigitallibrary.com/conferences/ihtc16,778081cd6c681e03,12b86154135e0814.html

In this study, decomposition of methane hydrate using an argon plasma jet was investigated in the pressure range of 0.1MPa to 2.0MPa. The plasma was successfully generated under high-pressure conditions, which is difficult to achieve when using the conventional radio frequency plasma in-liquid method. From the emission spectrometer analysis, excitation temperature of the argon plasma jet was found to decreases as the pressure increases, while conversely, the rotational temperature of OH increases. During the plasma irradiation process, the required basic reactions for methane hydrate decomposition, that is, methane hydrate dissociation, steam methane reforming, and methane cracking reaction were not fully satisfied due to an insignificant amount of methane that did not react. The gas chromatography analysis confirmed that only the methane cracking reaction has occurred to generate hydrogen and carbon, due to the absence of acetylene and ethylene as byproducts. In comparison with the other basic reactions of methane hydrate decomposition, the steam methane reforming reaction became dominant in converting methane into hydrogen.