共被期刊论文引用了4次
您的检索式：您选中1篇文献正在查看引证文献汇总
|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | Effect of Strontium Addition to Platinum Catalyst for Propane Dehydrogenation显示文摘PtSnSr/HZSM-5 catalysts with different amounts of strontium were prepared by sequential impregnation method,and characterized by BET analysis,TEM,NH3-TPD,H2-TPR,TPO and TG techniques.The results showed that the addition of strontium could modify the characteristics and properties of both acid function and metal function of Pt-Sn-based catalysts.In this case,PtSnSr/HZSM-5 catalyst with an appropriate amount of Sr(1.2%) showed higher catalytic activity and lower amount of coke deposits than PtSn/HZSM-5 catalyst.However,excessive loading of Sr could facilitate the reduction of Sn,which was unfavorable to the reaction.Afterwards,1.0 m% of Na was added into the PtSnSr(1.2%)/HZSM-5 catalyst to improve the catalytic performance in propane dehydrogenation,and this catalyst displayed the best catalytic performance during our experiments.After having been subjected to reaction for 5h,the PtSnNa(1.0%)Sr(1.2%)/HZSM-5 catalyst had achieved a higher than 95% selectivity towards propene along with a corresponding propane conversion rate of 32.2%. | Huang Li Zhou Shijian Zhou Yuming Zhang Yiwei Zhang Shaobo Xu Jun | 2012 | China Petroleum Processing & Petrochemical Technology2012，14，3： | 11 |
| 2 | 丙烷脱氢用高稳定性Pt基催化剂研究进展显示文摘丙烯作为重要的有机化工原料,国内外对其需求量持续增长,造成供不应求。丙烷脱氢(PDH)工艺是以丙烷为原料定向生产丙烯的技术,具有原料来源广泛、丙烯选择性高、产物简单易分离等优势,备受人们关注。本文主要阐述了近十年PDH反应中高稳定Pt基催化剂结构调控和工艺方面的研究进展。总结发现,Pt基催化剂具有最高的反应活性和丙烯选择性,然而,Pt基催化剂在反应中易积炭失活,且在高温下容易烧结团聚,造成稳定性下降。为提高Pt基催化剂的稳定性,研究者主要从催化剂结构设计和操作工艺条件优化两个角度出发。在Pt活性中心的调控方面:(1)调节Pt位点的结构特性,如分散度、粒径尺寸等;(2)加入金属助剂,如Sn、Cu、Ga、Zn等;(3)调控载体的酸性、比表面积、孔结构、金属-载体的相互作用等,能有效改善Pt基催化剂的抗烧结稳定性与抗积炭性能。在操作工艺条件优化方面,通过向丙烷原料中引入CO_(2)、H_(2)、水蒸气或者其他烷烃可增强Pt基催化剂的抗积炭稳定性、提高丙烯的收率。最后,文章指出有效耦合Pt基催化剂结构与操作条件是进一步提高PDH反应中Pt基催化剂稳定性和丙烯收率的关键。 | 张雨宸 张耀远 吴芹 史大昕 陈康成 黎汉生 | 2022 | 化工进展2022，41，9： | 5 |
| 3 | 低碳烷烃脱氢Pt系催化剂的研究进展显示文摘低碳烷烃脱氢Pt系催化剂由于活性较高且对环境友好等优点而被广泛研究。从催化剂的助剂、载体以及制备方法三个方面,综述了近五年的低碳烷烃脱氢Pt系催化剂的研究进展,并对Pt系催化剂未来的研究方向进行了展望。 | 姜冬宇 吴文海 吴省 曾铁强 樊志贵 缪长喜 | 2014 | 化学世界2014，55，6： | 5 |
| 4 | Influence of the Alkali Treatment of HZSM-5 Zeolite on Catalytic Performance of PtSn-Based Catalyst for Propane Dehydrogenation显示文摘The porous material ATZ with micro-mesopore hierarchical porosity was prepared by alkali treatment of parent HZSM-5 zeolite and applied for propane dehydrogenation. The zeolite samples were characterized by XRD, N2-physisorption, and NH 3-TPD analysis. The results showed that the alkali treatment can modify the physicochemical properties of HZSM-5 zeolite. In this case, the porous material ATZ showed larger external surface area with less acid sites as compared to the HZSM-5 zeolite. It was found out that the alkali treatment of HZSM-5 zeolite could promote the catalytic performance of PtSn/ATZ catalyst. The possible reason was ascribed to the low acidity of ATZ. Furthermore, the presence of mesopores could reduce the carbon deposits on the metallic surface, which was also favorable for the dehydrogenation reaction. | Huang Li Zhou Shijian Zhou Yuming Zhang Yiwei Xu Jun Wang Li | 2013 | China Petroleum Processing & Petrochemical Technology2013，15，2： | 2 |
您所在的机构暂未开通此部分的功能，请联系管理员