Development of a catalyst-sorbent system for Sorption Enhanced Steam Reform-ing of Ethanol.

DIANA PELTZER; MARCELA JARAMILLO BAQUERO; LAURA CORNAGLIA; JOHN MÚNERA

Ciudad de Buenos Aires

Congreso; VIII Symposium on Hydrogen, Fuel Cells and Advanced Batteries; 2022

Comisión Nacional de Energía Atómica

The growing concern about global warming and climate change has driven many countries to take action and gener-ate new policies for environmental protection. Among hu-man activities which generate greenhouse gases (GHG), en-ergy production accounts for around 75% of the total shares [1]. As 90% of the energy-related emissions derived from the oxidation of carbon, CO2 is considered the largest source of GHG in this category. Strategies like low carbon-energy pro-duction have been raised. Between these technologies, hy-drogen production through reforming of bioethanol is an in-teresting alternative due to the low cost and high disponibil-ity of bioethanol, their easy handling and storage, etc. In this context, Ni and Co based-catalysts have been proposed as cost-effective catalysts. The ethanol reforming process can be intensified by in situ CO2 secuestration in the Sorption En-hanced Steam Reforming of Ethanol (SESRE), which could yield higher concentrations of H2 [2]. For this purpose, com-binations of catalysts+CO2 sorbents as well as bifunctional catalysts have been proposed. Therefore, this contribution presents a preliminary study of the SESRE reaction using a combination of a Ni-ZrO2 catalyst and a Li2ZrO3-based sorbent. The solids were preparated by wet impregnation and characterized by XRD and Raman Spectroscoy. CO2 cap-ture tests were performed for the sorbent, while for the evaluation of the SESRE reaction, a mixutre of cata-lyst+sorbent was employed.