The study of metal/OMMT catalyst for hydrogen production from simulated waste plastics gasification syngas

• Main Authors: I-Hung Lai, 賴羿宏
• Other Authors: 魏銘彥
• Format: Others
• Language: zh-TW
• Published: 2016
• Online Access: http://ndltd.ncl.edu.tw/handle/93777967766208992463

碩士 === 國立中興大學 === 環境工程學系所 === 104 === Due to the shortage of fossil fuels and the sustainability of nuclear fuels, the development of renewable energy has been received highly attention. Furthermore, the management of huge amount of plastic waste is also a critical environmental issue. Recycling of plastics through thermal treatments not only can treat plastic waste but also can generate renewable energy and valuable products such as hydrogen and nano-carbon materials. In this study, organically modified montmorillonite (OMMT) supported catalyst has been prepared through polyol method, and being applied to catalytic gasification of simulated syngas derived from plastic wastes. Several operating conditions has been studied to evaluate the best parameter in terms of hydrogen production. The effects of catalyst preparing parameters and operating conditions on hydrogen production from simulated syngas derived from plastic waste gasification were investigated. From the TEM result, the size of Ni particles of Ni/OMMT catalysts is ranging from 30 ± 16 to 37 ± 7 nm. Ni/OMMT catalysts exhibited the best catalytic performance. The Ni loading on the support influenced the hydrogen production ability. The catalytic performance of the different Ni loading for hydrogen production is as follows: 10Ni/OMMT > 5Ni/OMMT > 3Ni/OMMT. Moreover, from the results of operating conditions, the 10Ni/OMMT catalyst gave the highest hydrogen production rate of 39.9 mmol/g-h, along with a small amount of bamboo-type carbon nanotubes at 700 ℃with the space velocity of 15957 h -1.