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篇名 高溫吸附劑對於鎳觸媒提升醋酸重組產氫之影響
卷期 67:5
作者 陳玟惠余慶聰陳建宏
頁次 066-073
關鍵字 吸附助效C0₂捕獲裂解油典型化合物sorption-enhancedC0₂ capturemodel compound of bio-oil
出刊日期 202010
DOI 10.29803/CE.202010_67(5).0009

中文摘要

本文章以本土常見生質廢棄物裂解油典型化合物作為重組料源,並以本團隊開發之「鎳基鹼性觸媒(Ni/Al₂0₃-Ca)」結合「吸附助效蒸氣重組(sorption-enhanced steam reforming, SESR)」技術進行重組產氫測試。吸附助效重組技術有別於傳統重組反應,原理係將反應過程中之副產物二氧化碳移除,破壞化學平衡,促使主反應持續向右進行*增加產物氫氣生成並提升氫氣濃度至90 %以上。本研究使用之「鎳基鹼性觸媒(Ni/Al-Ca)」材料係由鎳基觸媒(Ni/Al)與CaO粉末混合(重量比1 : 4)、造粒而成,並取水碳比(S/C) 6〜12之醋酸水溶液作為料源,後續針對觸媒材料及料源樣品組成、總有機碳(Total organic carbon,TOC)分析測試,並利用不同實驗參數進行吸附助效重組(SESR)反應可行性測試。根據結果顯示,純鎳基觸媒(Ni/Al)之NiO含量為17.32 wt.%,鎳基鹼性觸媒(Ni/Al-Ca)複合材料NiO、CaO含量為3.10 wt.%及88.30 wt.%,重組料源TOC含量介於48,600〜95,500 mg/L,另在不同水碳比及進料量下之重組反應測試產物氫氣濃度及產率可達90%以上,已初步證實本技術應用於生質廢棄物再利用之潛力。

英文摘要

In this article, the model compounds of bio-oil, which is cracking of common biomass waste, is used as the reforming source, and the self-developed high-performance materials 「nickel-based alkaline catalyst (Ni/Al-Ca)」 were used as the catalysts for r sorption-enhanced steam reforming (SESR) 」 to produce hydrogen-rich gas. The SESR reaction is different from the general steam reforming reaction. The principle is to remove the by-product carbon dioxide in the process, and destroy the chemical balance in order to promote the main reaction, increase the hydrogen production and also improve the H2 concentration above 90 %. In this study,we used「nickel-based alkaline catalyst (Ni/Al-Ca)」as materials,mixing with nickel-based catalyst (Ni/Al) and CaO powders (the weight ratio is 1 : 4). Then, we prepared the acetic acid solutions with different steam to carbon ratios (S/C=6〜12), then analyze the composition and the total organic carbon (TOC) of the samples, also establish the different conditions to perform the sorption enhanced steaming reforming (SESR). The results showed that Ni/Al catalyst NiO content is 17.32 wt.%, Ni/Al-Ca catalyst NiO and CaO content is 3.10 wt.% and 88.30 wt.%9 the TOC of acetic acid solution is between 48,600〜95,500 mg/L. With different S/C and feed rate, the H2 concentration and yield were always above 90 %. This consequent demonstrate the potential of this technique applied to the biomass waste recycling.

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