探究CO_(2)催化重整中镍基催化剂的抗积碳性  

The anti-deposition of nickel-based catalyst in CO_(2) catalytic reforming was investigated

作　　者：丁远鑫 马晓茜[1] 唐玉婷[1] 陈新飞 DING Yuan-xin;MA Xiao-qian;TANG Yu-ting;CHEN Xin-fei(Guangdong Province Key Laboratory of Efficient and Clean Energy Utilization,School of Electric Power,South China University of Technology,Guangzhou 510640,China)

机构地区：[1]华南理工大学电力学院广东省高效清洁能源利用重点实验室,广东广州510640

出　　处：《应用化工》2022年第2期322-327,333,共7页Applied Chemical Industry

基　　金：国家重点研发计划(2018YFC1901200);广东省高效清洁能源利用重点实验室(2013A061401005)。

摘　　要：在焦油的CO_(2)重整过程中,使用铁掺杂来增加单金属镍基催化剂的抗焦炭性。研究了单金属Ni/ZrO_(2)和双金属Ni-Fe/ZrO_(2)催化剂在甲苯二氧化碳重整反应中的催化活性和抗结焦性。结果表明,添加铁后对重整反应的促进作用是镍铁合金中镍和铁之间的相互作用的原因。同时,铁掺杂后,镍基催化剂表面上的焦炭沉积也被抑制,Ni-Fe/ZrO_(2)上的焦炭沉积(5.48%)低于Ni/ZrO_(2)上的焦炭沉积(27.54%)。通过在焦油的CO_(2)重整过程中向镍基催化剂中添加铁,可以提高抗积碳性能和稳定性,使得催化剂能够更好地应用于焦油去除过程。In the CO_(2) reforming process of tar,iron doping is used to increase the coke resistance of single metal nickel-based catalysts.The catalytic activity and coking resistance of Ni/ZrO_(2) and bimetal Ni-Fe/ZrO_(2) catalysts in the carbon dioxide reforming of toluene were studied.The result showed that the interaction between nickel and iron in Ni-Fe alloy is caused by the promotion of reforming reaction after adding iron.Meanwhile,coke deposition on the surface of nickel catalyst was also inhibited after Fe doping,resulting in coke deposition on Ni-Fe/ZrO_(2)(5.48%)lower than that on Ni/ZrO_(2)(27.54%).By adding iron to nickel catalyst during CO_(2) reforming of tar,coke resistance and stability can be improved,which makes the catalyst suitable for tar removal process.

关 键 词：CO_(2)重整 甲苯 催化剂 抗积碳性 稳定性 

分 类 号：TQ032.4[化学工程]