(2022) CO2 hydrogenation to methanol with an innovative Cu/Zn/Al/Zr catalyst: Experimental tests and process modeling

Pubblicato su Journal of CO2 Utilization. 2022; 65:102240. Autori: Giorgia Lombardelli, Mauro Mureddu, Sarah Lai, Francesca Ferrara, Alberto Pettinau, Luciano Attori, Antonio Conversano, Manuele Gatti

Descrizione

Giorgia Lombardelli, Mauro Mureddu, Sarah Lai, Francesca Ferrara, Alberto Pettinau, Luciano Attori, Antonio Conversano, Manuele Gatti. CO2 hydrogenation to methanol with an innovative Cu/Zn/Al/Zr catalyst: experimental tests and process modeling. Journal of CO2 Utilization 2022; 65:102240.

Abstract

In this study, an innovative Cu/Zn/Al/Zr catalyst for the conversion of CO2 and H2 into methanol is tested at laboratory scale (0.5 g of catalyst into a cylindrical fixed bed reactor, with 9.1 mm internal diameter). Fourteen experimental tests are performed under isothermal conditions (T = 250 °C), covering a range of pressure (3.0–7.0 MPa), Gas Hourly Space Velocity (4000–13,000 h-1) and H2/CO2 molar ratio (between 3 and 6) relevant to industrial applications, with or without CO in the feed mixture, with flow-rates ranging between 200 and 650 NmL min-1. Based on the established Graaf’s kinetic model, new kinetic parameters are calibrated and a plug-flow model of the isothermal reactor is implemented and simulated in Aspen Plus. A reasonable agreement between experimental data and calibrated model is achieved, with deviations lower than 10% of the measured flow rates for each species in the product stream. CO2 conversion up to 26% and methanol yields up to 13% are obtained during the test campaign (test run #12). The model represents a valid tool for future research or engineering studies targeting the design and performance assessment of demo/full-scale CO2-to-methanol synthesis processes based on the Cu/Zn/Al/Zr catalyst introduced in this paper.

(2022) CO2 hydrogenation to methanol with an innovative Cu/Zn/Al/Zr catalyst: Experimental tests and process modeling
(2022) CO2 hydrogenation to methanol with an innovative Cu/Zn/Al/Zr catalyst: Experimental tests and process modeling  

Pubblicazione

01
nov/22

Data pubblicazione

Documenti allegati

Ulteriori informazioni

Ultimo aggiornamento

24/10/2024, 08:55