Dry reforming of methane over La2Ce2-xNi0,5xO7-´ pyrochlore oxides for syngas production

• Grant number: 16/16329-0
• Support Opportunities: Scholarships in Brazil - Doctorate
• Start date: November 01, 2016
• End date: June 30, 2020
• Field of knowledge: Engineering - Chemical Engineering - Chemical Process Industries
• Principal Investigator: Jose Mansur Assaf
• Grantee: Adriana Paula Ramon
• Host Institution: Centro de Ciências Exatas e de Tecnologia (CCET). Universidade Federal de São Carlos (UFSCAR). São Carlos , SP, Brazil
• Associated research grant: 15/06246-7 - Biorefinery concept applied to biological wastewater treatment plants: environmental pollution control coupled with material and energy recovery, AP.TEM
• Associated scholarship(s): 19/01265-4 - Surface science and mechanism investigation of pyrochlore catalysts in the dry reforming of methane, BE.EP.DR

Abstract

Catalysts with pyrochlore structure will be developed to produce syngas from dryreforming of methane (DRM). The pyrochlore structure contributes to the reduction ofactive metal sintering and deactivation by carbon deposition, which are the mainproblems in the DRM. Due to the lack of information in the literature on preparationand application of compounds with pyrochlore structure in heterogeneous catalysis, thiswork will be focused on a systematic and pioneer study comparing several preparationmethods to synthesize the La2Ce2-xNi0,5xO7-´ pyrochlore structure with 1 and 5% w/w Ni.The following five routes will be employed and the results compared: modified Pechini;sol-gel; precipitation; glycine-nitrate combustion and hydrothermal methods. It isexpected with this work achieve active and stable catalysts for the reaction of RSM withno significant carbon deposition. It is also expected to relate the physical and chemicalproperties obtained by the different synthesis methods with the performance of thecatalyst in the reaction of methane dry reforming.

Scientific publications

(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)

RAMON, ADRIANA P.; LI, XIANSHENG; CLARK, ADAM H.; SAFONOVA, OLGA V.; MARCOS, FRANCIELLE C.; ASSAF, ELISABETE M.; VAN BOKHOVEN, JEROEN A.; ARTIGLIA, LUCA; ASSAF, JOSE M.. In situ study of low-temperature dry reforming of methane over La2Ce2O7 and LaNiO3 mixed oxides. APPLIED CATALYSIS B-ENVIRONMENTAL, v. 315, p. 16-pg., 2022-06-01. (14/50279-4, 19/01265-4, 15/06246-7, 16/16329-0)