•  
  •  
 

Keywords

Global warming, syngas, catalyst, wet impregnation

Document Type

Research Article

Abstract

In view of the escalating global warming phenomenon, utilization of CO2 has become an important event in recent decades. Syngas production via Dry Reforming of Methane (DRM) is one of the promising methods to produce COX-free hydrogen as a renewable and sustainable energy source. DRM requires an active functioning catalyst since it is a highly endothermic process. The catalytic behaviour of 10 wt. % Ni supported on Al2O3 and doped with CaO is investigated for DRM. In the present study, the efect of alkaline earth metal oxide (CaO) loading (varying from 0.5-2.0 wt. %) on the structure, properties, stability, and performances of the Ni-CaO/Al2O3 catalyst for the DRM process is studied. The catalysts were prepared by wet impregnation method and characterized by Scanning Electron Microscopy (SEM) to study the morphology of the fresh and spent catalyst and Thermogravimetric Analyzer (TGA), which changes in physical and chemical properties of the catalysts are measured as a function of increasing temperature and time. DRM is carried out in a fxed-bed reactor at a temperature range from 600°C to 800°C. Further, the efect of CH4 partial pressure on the conversion of CH4, CO2 and syngas ratio were also investigated. The thermal stability of the catalyst increased on loading with CaO, and CAT-4 (1.5 wt. % CaO, 8.5 wt. % Ni on Al2O3) displayed the optimum activity, stability, and least coke formation

html

Publication Date

30-9-2021

First Page

2

Last Page

13

Download

Share

COinS