等离子体增强Ni基催化剂制备及其催化正戊烷重整性能  

Preparation of Plasma-Enhanced Ni-Based Catalyst and Its Catalytic Performance in Reforming of n-Pentane

作　　者：周为莉 章旭明 徐顺秒 吴祖良 任燕 朱祖超[2] ZHOU Weili;ZHANG Xuming;XU Shunmiao;WU Zuliang;REN Yan;ZHU Zuchao(National Synchrotron Radiation Laboratory,University of Science and Technology of China,Hefei 230029,China;Key Laboratory of Fluid Transmission Technology of Zhejiang Province,Zhejiang Sci-Tech University,Hangzhou 310018,China;Shaoxing-Keqiao Research Institute,Zhejiang Sci-Tech University,Shaoxing 312000,China;Hangzhou Bestway Environment Protection Co.,Ltd.,Hangzhou 310018,China;School of Environment Science and Engineering,Changzhou University,Changzhou 213164,China;Zhejiang Suntown Environment Protection Co.,Ltd.,Quzhou 324000,China)

机构地区：[1]中国科学技术大学国家同步辐射实验室,安徽合肥230029 [2]浙江理工大学浙江省流体传输技术研究重点实验室,浙江杭州310018 [3]浙江理工大学绍兴柯桥研究院,浙江绍兴312000 [4]杭州佰斯维环境科技有限公司,浙江杭州310018 [5]常州大学环境科学与工程学院,江苏常州213164 [6]浙江中泰环保股份有限公司,浙江衢州324000

出　　处：《石油学报（石油加工）》2023年第5期1046-1058,共13页Acta Petrolei Sinica(Petroleum Processing Section)

基　　金：国家自然科学基金项目(11775189,U1909216);浙江省杰出人才支持项目(2019R51002);浙江省公益研究项目(LGF21B070003);浙江理工大学科学基金项目(19022108-Y,21022310-Y,21022092-Y)和浙江理工大学绍兴柯桥研究院成果培育项目(KYY2022001C)资助。

摘　　要：低温等离子体技术在燃料重整方面有应用前景,但单独利用时能量效率不高,催化剂的引入可有所改善。利用介质阻挡放电反应器,研究了等离子体处理对催化剂Ni/Al_(2)O_(3)理化性质的影响,考察了等离子体催化正戊烷重整的不同反应条件对反应物活化和产物生成特性的影响。结果表明:经等离子体处理后的催化剂活性物种粒径更小,与载体相互作用更强,同时催化剂抗积炭性能得到提升,因而反应活性提高,在温度25℃、压力0.1 MPa、能量密度3.6 kJ/L的条件下,反应物转化率提高了50%以上;反应物转化受电子引发化学和热化学的共同影响,而产物生成则受热化学和原料气组分的影响。该研究为制备高效抗积炭催化剂提供了新思路,有助于深入理解等离子体协同催化重整过程,为开发车载重整器提供基础技术支持。Low-temperature plasma technology has a promising application potential in fuel reforming,but the energy efficiency is low when used alone and can be improved by introducing catalysts.A dielectric barrier discharge reactor was applied to study the effect of plasma treatment on the physical and chemical properties of Ni/Al_(2)O_(3) and investigate the influence of various reaction conditions for plasma-catalytic n-pentane reforming on the reactant activation and product formation characteristics.The results show that after plasma treatment,catalyst active species are characterized with a smaller particle size,a stronger interaction with the carrier,and the enhanced resistance to carbon-deposition of catalyst,of which the reaction activity is thus increased.At the temperature of 25℃,pressure of 0.1 MPa,and energy density of 3.6 kJ/L,the conversion rate of reactants has increased by over 50%.Furthermore,it has been found that reactant conversion is influenced by both electron-induced chemistry and thermo-chemistry,while product generation is controlled by thermo-chemistry and the feed gas composition.This study provides new ideas for preparing highly efficient carbon-resistant catalysts,which contributes to a better understanding of the plasma-catalytic reforming process and offers fundamental technical support for developing vehicle-mounted reformers.

关 键 词：等离子体 催化剂 正戊烷 二氧化碳 重整 清洁能源 

分 类 号：TK91[动力工程及工程热物理]