程序升温氧化—色谱联用法研究结焦催化剂中焦的性质

Study of Coke Deposits on Catalyst by Temperature Program Oxidation-Gas Chromatography(TPO-GC)

建立了TPO-GC装置用于结焦催化剂上焦的程序升温燃烧及其产物的同步测定,用此法确定了催化剂上焦的总量和焦中各物种的C/H 比。用此法尚可获得催化剂性质和催化剂上焦结构的有关信息。在研究催化剂上焦时此法比DTG或DTA法优越。

TPO-GC equipment was established for temperature program combustion ofcarbon deposited on catalysts and measurement of the combustion product.Theamount of carbon deposited on catalyst and the C/H ratio of the species in thecoke were obtained by this method.Information about the nature of the cata-lysts and the structure of the coke deposit was also gained,The multifunction ofthis method indicates that TPO-GC method is better than DTG or DTA for thepresent purpose.