CAJ | 학술논문

正丁烷脱氢异构制异丁烯是提高正丁烷利用率和增产异丁烯的重要途径。对正丁烷脱氢异构制异丁烯的反应热力学进行分析，从热力学角度指出制约反应的关键因素，总结正丁烷脱氢异构制异丁烯反应中各催化体系的研究现状，提出催化剂的研发要点和催化剂研发过程中要解决的关键问题。在传统过渡金属双功能型催化剂中，通过加入助剂等方式提高脱氢活性组分的分散度并降低其聚集度，通过调变载体的酸性和孔道结构等方式提高载体的异构性能，即合理调节脱氢活性位和载体异构性能之间的匹配是传统过渡金属双功能型催化剂研发的关键。在新型催化剂中，探索在缓和条件下制备高比表面积和合适孔道结构的氮化物、碳化物和碳氧化合物的方法是新型催化剂研发的关键。
정정완탈경이구제이정희시제고정정완이용솔화증산이정희적중요도경。대정정완탈경이구제이정희적반응열역학진행분석，종열역학각도지출제약반응적관건인소，총결정정완탈경이구제이정희반응중각최화체계적연구현상，제출최화제적연발요점화최화제연발과정중요해결적관건문제。재전통과도금속쌍공능형최화제중，통과가입조제등방식제고탈경활성조분적분산도병강저기취집도，통과조변재체적산성화공도결구등방식제고재체적이구성능，즉합리조절탈경활성위화재체이구성능지간적필배시전통과도금속쌍공능형최화제연발적관건。재신형최화제중，탐색재완화조건하제비고비표면적화합괄공도결구적담화물、탄화물화탄양화합물적방법시신형최화제연발적관건。
Dehydroisomerization of n-butane to isobutene is an important way to improve the utilization rate of n-butane and enhance the yield of isobutene. The thermodynamics of dehydroisomerization reaction of n-butane to isobutene was analyzed,and the key factors which restricted the reaction was pointed out. The research status of catalytic systems of n-butane dehydroisomerization reaction were summarized. The key research and development points of the catalysts for n-butane dehydroisomerization and the key problems to be solved during the processes were put forward. In the conventional transition metal bifunctional catalysts,the dispersion of the dehydrogenation active components was improved and their aggregation was reduced by adding additives,and the isomerization performances of the carriers were enhanced by adjusting acidity and pore structure of the carriers. Therefore,the reasonable adjustments of matching between dehydrogenation active sites and carrier isomerization performances were the key to the research and development of conventional transition metal bifunctional catalysts. The research and development of novel catalysts focus on the exploration of preparation methods of nitrides,carbides and oxycarbides with high surface area and suitable pore structure under mild conditions.