当前位置：
X-MOL 学术
›
Ind. Eng. Chem. Res.
›
论文详情
Our official English website, www.x-mol.net, welcomes your
feedback! (Note: you will need to create a separate account there.)
A High-Performance Ni/SiO2 Prepared by the Complexed-Impregnation Method with Citric Acid for Carbon Dioxide Reforming of Methane
Industrial & Engineering Chemistry Research ( IF 3.8 ) Pub Date : 2018-11-16 , DOI: 10.1021/acs.iecr.8b03897 Hua-Ping Ren 1 , Qing-Qing Hao 2 , Si-Yi Ding 1 , Yu-Zhen Zhao 1 , Min Zhu 1 , Shao-Peng Tian 1 , Qiang Ma 1 , Wen-Qi Song 1 , Zongcheng Miao 1 , Zhao-Tie Liu 3, 4
Industrial & Engineering Chemistry Research ( IF 3.8 ) Pub Date : 2018-11-16 , DOI: 10.1021/acs.iecr.8b03897 Hua-Ping Ren 1 , Qing-Qing Hao 2 , Si-Yi Ding 1 , Yu-Zhen Zhao 1 , Min Zhu 1 , Shao-Peng Tian 1 , Qiang Ma 1 , Wen-Qi Song 1 , Zongcheng Miao 1 , Zhao-Tie Liu 3, 4
Affiliation
|
A group of Ni/SiO2 catalysts was prepared via the complexed-impregnation method with different amounts of citric acid (Ni–C/SiO2). The Ni–C/SiO2 and Ni/SiO2 prepared by the conventional impregnation method were respectively tested for carbon dioxide reforming of methane (CDR) at CO2/CH4 = 1.0, a gas hourly space velocity of 60 000 mL·g–1·h–1, and a reaction temperature of 750 °C. The characterization results indicated that Ni–C/SiO2 showed higher Ni dispersion and stronger Ni–support interaction than Ni/SiO2. As a result, superior anti-coke and anti-sintering of Ni were obtained over the Ni–C/SiO2 during the period of CDR operation. Importantly, a highly active and stable catalyst was obtained by optimizing the amount of citric acid added, and an unobservable deactivation was exhibited over Ni–C/SiO2 with a molar ratio of citric acid to Ni of 2.0 for the CDR testing within the time on stream of 100 h.
中文翻译：
柠檬酸络合浸渍法制备高性能Ni / SiO 2用于甲烷二氧化碳重整
通过络合浸渍法用不同量的柠檬酸（Ni-C / SiO 2）制备了一组Ni / SiO 2催化剂。通过常规浸渍方法制备的Ni–C / SiO 2和Ni / SiO 2分别在CO 2 / CH 4 = 1.0，气时空速为60 000 mL·g的条件下对甲烷（CDR）的二氧化碳重整进行了测试。–1 ·h –1，反应温度为750°C。表征结果表明，镍-C /的SiO 2显示更高的Ni分散度和更强的镍-载体相互作用除Ni /二氧化硅2。结果，在CDR操作期间，获得了比Ni–C / SiO 2更好的Ni防焦和防烧结性能。重要的是，通过优化柠檬酸的添加量可以获得高活性和稳定的催化剂，并且在一段时间内，对于CDR测试，柠檬酸与Ni的摩尔比为2.0时，Ni-C / SiO 2表现出不可观察到的失活。持续100小时
更新日期：2018-11-17
中文翻译：
柠檬酸络合浸渍法制备高性能Ni / SiO 2用于甲烷二氧化碳重整
通过络合浸渍法用不同量的柠檬酸（Ni-C / SiO 2）制备了一组Ni / SiO 2催化剂。通过常规浸渍方法制备的Ni–C / SiO 2和Ni / SiO 2分别在CO 2 / CH 4 = 1.0，气时空速为60 000 mL·g的条件下对甲烷（CDR）的二氧化碳重整进行了测试。–1 ·h –1，反应温度为750°C。表征结果表明，镍-C /的SiO 2显示更高的Ni分散度和更强的镍-载体相互作用除Ni /二氧化硅2。结果，在CDR操作期间，获得了比Ni–C / SiO 2更好的Ni防焦和防烧结性能。重要的是，通过优化柠檬酸的添加量可以获得高活性和稳定的催化剂，并且在一段时间内，对于CDR测试，柠檬酸与Ni的摩尔比为2.0时，Ni-C / SiO 2表现出不可观察到的失活。持续100小时
京公网安备 11010802027423号