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題名 | The Effect of Support on Potassium-Promoted Ruthenium Catalysts in CO Hydrogenation=擔體對含鉀之釕觸媒在一氧化碳氫化反應之影響 |
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作者姓名(外文) | Chen,Yu-Wen; | 書刊名 | Journal of the Chinese Institute of Chemical Engineers |
卷期 | 16:2 1985.04[民74.04] |
頁次 | 頁121-124 |
分類號 | 468.8 |
關鍵詞 | 一氧化碳; 反應; 含鉀; 氫化; 擔體; 觸媒; 釕; |
語文 | 英文(English) |
中文摘要 | 本文研究承載在不同擔體(氧化矽、氧化鋁、氧化鈦、石墨和NaY沸石)之釕金屬觸媒之鉀促進劑對一氧化碳氫化反應之影響程度。實驗情形為溫度250-350℃,一大氣壓,CO/H₂比值為1,GHSV為1,800hr¯¹。所有觸媒(除NaY擔體之觸媒外)加入鉀後,其反應速率均降低,但C₂-C₄間之烯濃度比率則增加。反應溫度對此比率之影響程度在含鉀觸媒上較不含鉀觸媒低。研究顯示擔體對鉀之影響程度(即產物選擇率)有極大影響。 |
英文摘要 | Different classes of Ru catalysts supported on SiO₂, Al₂O₃, TiO₂, graphite, and NaY have been used to investigate the effect of the support on K promotion in CO hydrogenation. It was examined at temperature of 250 to 350℃, a pressure of 1 atm, a CO/H₂ ratio of 1, and a space velocity GHSV of 1,800 hr¯¹. In each case, the addition of K significantly enhanced the fraction of olefin products (C₂-C₄) for the impregnated Ru catalysts. The olefin fraction of the C₂-C₄, hydrocarbons produced becomes a weak function of the reaction temperature. On the other hand, the rate of syndthesis is decreased by this addition. Tremendous variations in selectivities were found depending on the support used. |
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