• 作者： Huang, Ta-Jen; Yu, Tai-Chiang
• 中文摘要： 本文使用傳統的脈動反應器來進行甲醇於酮-鋅觸媒上的反應, 包含蒸氣重組與部分氧化。預吸附氧實驗和自身還原實驗被用以確認甲醇活性、氫產量、水消耗量以及水產生量的最大值。這四個最大值位於不同數值的預吸附氧濃度。不同的觸媒活性與選擇性的行為在以這些最大值來分隔的五個區域內被確認。在預吸附氧的濃度低時, 水的解離和氫產量均較未預吸附氧時的蒸氣重組反應大為增進。高濃度的預吸附氧則抑制水的解離以及水氣轉換反應的發生。
• 英文摘要： Methanol reactions, consisting of steam reforming and partial oxidation, were carried out over a Cu-ZnO catalyst in a conventional pulse reactor. Oxygen-preadsorption experiments and self-reduction experiments were perfomred to identify the maximum value for each of the methanol activity, the hydrogen production, the water consumption, and the water generation. These four maxima are located at different values of the preadsorbed oxygen concentrations. Different behavior of the catalyst activity and selectivity are identified in the five regions separated by these maxima. At low concentration of the preadsorbed oxygen, the water dissociation and the hydrogen production are greatly enhanced relative to those of steam reforming without preadsorbed oxygen. The water dissociation and thus the water-gas shift reaction are inhibited by high concentration of the preadsorbed oxygen.
• 中文關鍵字： 甲醇反應; 銅表面; 預吸附氧; 選擇性; 催化劑
• 英文關鍵字： Methanol Reactions; Copper Surface; Preadsorbed Oxygen; Selectivity; Catalyst