Influence of Contaminants in Steel Mill Exhaust Gases on Cu/ZnO/Al₂O₃ Catalysts Applied in Methanol Synthesis

Abstract

The influence of impurities in steel mill exhaust gases on ternary Cu/ZnO/Al2O3 catalysts was studied for conventional methanol synthesis, which is one of the central reactions within the cross‐industrial approach of Carbon2Chem®. A series of hydrocarbons was identified as inert spectators for methanol synthesis. Several catalyst poisons like N‐containing compounds or O2 show reversible characteristics at low pressure. However, by increasing the partial pressure of O2, poisoning becomes irreversible, indicating different poisoning mechanisms concerning the reversibility of deactivation.

Methanol Synthesis with Steel Mill Gases: Performance Investigations in an On‐Site Technical Center

“…The tests were performed with the MegaMax®800 methanol synthesis catalyst provided by Clariant. The detailed test conditions can be found in 9.…”

Methanol Synthesis with Steel-Mill Gases: Simulation and Practical Testing of Selected Gas Utilization Scenarios

“…The applied synthetic gas compositions are pure in terms of trace compounds that might arise from the steel-mill processes. These contaminants might have a negative effect on the catalyst performance [18]. Therefore, the possibility of generating syngas streams from real steel-mill gases that do not affect the catalyst stability has to be proven.…”

A Career in Catalysis: Robert Schlögl

“…The commercial Cu/ZnO/Al 2 O 3 catalyst was found to be generally stable and to be capable of dealing with the required dynamics of the conditions when it is coupled to volatile regenerative energy . The conversion of steel mill exhaust gases has also been described recently with a focus on the reversibility of catalyst poisoning . These very new results exemplarily show that there still are open questions and important problems, but the starting position for young researchers entering this field today to tackle these challenges is promisingalso as a result of the contributions of Robert and his team.…”

“…129 The conversion of steel mill exhaust gases has also been described recently 130 with a focus on the reversibility of catalyst poisoning. 131 These very new results exemplarily show that there still are open questions and important problems, but the starting position for young researchers entering this field today to tackle these challenges is promisingalso as a result of the contributions of Robert and his team. Thanks to his work, the complex Cu/ZnO/Al 2 O 3 catalyst is today among the best-studied industrial catalytic materials.…”