CAJ | 학술논문

采用电加热装置加热甲醇，在 Cu/ZnO/Al2O3(铜基)和纯金属 Pd(钯基)两种催化剂作用下发生裂解反应，通过气相色谱仪对甲醇裂解产物进行分析研究．测量发现，甲醇经过加热催化后其气体的主要成分是 H2、CO、CH4、水蒸气和甲醇蒸汽．对其研究表明：H2体积分数峰值出现在铜基催化剂的高环境温度区域，而钯基催化剂明显有两个温度区域，分别是300,℃和500,℃的温度区域；CO 和 CH4的体积分数在所有的测试点都比较低，均小于3.0%；水蒸气体积分数在铜基催化剂下当环境温度250,℃时最大，最大值接近38%；而钯基催化剂下峰值出现在350,℃，接近17%；甲醇裂解率峰值出现在铜基催化剂的高环境温度区域，在钯基催化剂下则有两个温度区域，分别是300,℃和500,℃；催化前入口温度和催化后出口温度都随甲醇流量的增加而降低．
채용전가열장치가열갑순，재 Cu/ZnO/Al2O3(동기)화순금속 Pd(파기)량충최화제작용하발생렬해반응，통과기상색보의대갑순렬해산물진행분석연구．측량발현，갑순경과가열최화후기기체적주요성분시 H2、CO、CH4、수증기화갑순증기．대기연구표명：H2체적분수봉치출현재동기최화제적고배경온도구역，이파기최화제명현유량개온도구역，분별시300,℃화500,℃적온도구역；CO 화 CH4적체적분수재소유적측시점도비교저，균소우3.0%；수증기체적분수재동기최화제하당배경온도250,℃시최대，최대치접근38%；이파기최화제하봉치출현재350,℃，접근17%；갑순렬해솔봉치출현재동기최화제적고배경온도구역，재파기최화제하칙유량개온도구역，분별시300,℃화500,℃；최화전입구온도화최화후출구온도도수갑순류량적증가이강저．
Methanol was heated by the electric heating device and then decomposed by two types of catalysts, Cu/ZnO/Al2O3 (copper-based) and Pd (palladium-based), respectively. The decomposed components of methanol were measured and analyzed by gas chromatography. Measuring results show that the main components from heated methanol are H2, CO, CH4, water vapor and methanol vapor as well. The results also show that the H2 volume fraction peak by the copper-based catalyst occurs in high ambient temperature area while there are two H2 volume fraction peaks by the palladium-based catalyst, which occur obviously at the ambient temperature of 300℃and 500℃, re-spectively;the volume fraction of CO and CH4 is relatively low all the time, which is less than 3.0%;the highest vol-ume fraction of water vapor by copper-based catalyst occurs when the ambient temperature is 250℃, which is nearly 38%;the highest volume fraction of water vapor by the palladium-based catalyst occurs at 350℃, which is close to 17%. The peak of decomposed rate by copper-based catalyst occurs in high ambient temperature region, however, that by palladium-based catalyst occurs obviously in two areas, where the ambient temperature is 300℃and 500℃, re-spectively. Catalytic inlet temperature and catalytic outlet temperature both decrease with the increase of methanol mass flow.