硫化处理对钯锆纤维催化剂甲烷低温催化燃烧性能的影响  

Effect of sulfidization treatment on the performance of palladium zirconium fiber catalysts for low temperature methane catalytic combustion

作　　者：陈水辉 文杰强 刘艳春[2,3] 

机构地区：[1]广州锐得森特种陶瓷科技有限公司,广东广州510460 [2]华南理工大学,广东广州510640 [3]广州市红日燃具有限公司,广东广州510430

出　　处：《工业催化》2014年第8期623-627,共5页Industrial Catalysis

摘　　要：采用胶体喷吹成型法制备钯锆-γ-氧化铝纤维催化剂。将催化剂在不同硫化气氛进行硫化处理,置于扩散式催化燃烧取暖器。考察硫化气氛、热负荷和耐久试验时间对燃烧取暖器的烟气浓度、起燃温度和燃烧板面平均温度的影响。使用烟气分析仪和红外热成像仪对取暖器的烟气浓度和板面平均温度进行分析。结果表明,纤维催化剂经10%H2S-H2气氛硫化120 min,可以制得初始活性良好、稳定性较好且完全符合燃气取暖器CE标准指标的催化剂。Palladium zirconium/γ-Al2O3 fiber catalysts were developed by colloid blowing method. The as-prepared fiber catalysts were treated under different sulfidization atmosphere, and then were put in diffusion type catalytic combustion heater. The exhaust gas concentration, light-off temperature and average surface temperature were investigated by flue gas analyzer and thermal infrared imager under different sulfidization atmosphere, heat load and time of life test of the catalysts. The results showed that the fiber catalyst vulcanized by 10% H2S-H2 atmosphere for 120 min possessed excellent initial activity and stability, and could meet the demand for gas heater with CE standard index.

关 键 词：能源化学 甲烷低温催化燃烧 扩散式催化取暖器 燃气取暖器 钯锆纤维催化剂 硫化 

分 类 号：TQ426.99[化学工程] TK16[动力工程及工程热物理—热能工程]