TY - JOUR
T1 - Kinetic Modelling of the Aqueous-Phase Reforming of Fischer-Tropsch Water over Ceria-Zirconia Supported Nickel-Copper Catalyst
AU - Coronado, Irene
AU - Arandia, Aitor
AU - Reinikainen, Matti
AU - Karinen, Reetta
AU - Puurunen, Riikka L.
AU - Lehtonen, Juha
N1 - Funding Information:
Funding: This work was funded by Academy of Finland [AQUACAT Grant number 2853989].
Funding Information:
This work was funded by Academy of Finland [AQUACAT Grant number 2853989]. The authors thank Pekka Simell for his guidance and support. We are grateful to Emma K?rkk?inen for helping with the kinetic experiments and to Jama Ali for helping with the work made with Matlab. The Bioeconomy Infrastructure and the Raw Materials Research Infrastructure (RAMI) permitted conducting the experimental work for this study at both VTT Technical Centre of Finland Ltd. and Aalto University.
Publisher Copyright:
© 2019 by the authors. Licensee MDPI, Basel, Switzerland.
Copyright:
Copyright 2019 Elsevier B.V., All rights reserved.
PY - 2019/11
Y1 - 2019/11
N2 - In the Fischer–Tropsch (FT) synthesis, a mixture of CO and H2 is converted into hydrocarbons and water with diluted organics. This water fraction with oxygenated hydrocarbons can be processed through aqueous-phase reforming (APR) to produce H2. Therefore, the APR of FT water may decrease the environmental impact of organic waters and improve the efficiency of the FT process. This work aimed at developing a kinetic model for the APR of FT water. APR experiments were conducted with real FT water in a continuous packed-bed reactor at different operating conditions of temperature (210–240 °C), pressure (3.2–4.5 MPa) and weight hourly space velocity (WHSV) (40–200 h−1) over a nickel-copper catalyst supported on ceria-zirconia. The kinetic model considered C1-C4 alcohols as reactants, H2, CO, CO2 and CH4 as the gaseous products, and acetic acid as the only liquid product. The kinetic model included seven reactions, the reaction rates of which were expressed with power law equations. The kinetic parameters were estimated with variances and confidence intervals that explain the accuracy of the model to estimate the outlet liquid composition resulting from the APR of FT water. The kinetic model developed in this work may facilitate the development of APR to be integrated in a FT synthesis process.
AB - In the Fischer–Tropsch (FT) synthesis, a mixture of CO and H2 is converted into hydrocarbons and water with diluted organics. This water fraction with oxygenated hydrocarbons can be processed through aqueous-phase reforming (APR) to produce H2. Therefore, the APR of FT water may decrease the environmental impact of organic waters and improve the efficiency of the FT process. This work aimed at developing a kinetic model for the APR of FT water. APR experiments were conducted with real FT water in a continuous packed-bed reactor at different operating conditions of temperature (210–240 °C), pressure (3.2–4.5 MPa) and weight hourly space velocity (WHSV) (40–200 h−1) over a nickel-copper catalyst supported on ceria-zirconia. The kinetic model considered C1-C4 alcohols as reactants, H2, CO, CO2 and CH4 as the gaseous products, and acetic acid as the only liquid product. The kinetic model included seven reactions, the reaction rates of which were expressed with power law equations. The kinetic parameters were estimated with variances and confidence intervals that explain the accuracy of the model to estimate the outlet liquid composition resulting from the APR of FT water. The kinetic model developed in this work may facilitate the development of APR to be integrated in a FT synthesis process.
KW - kinetic modelling
KW - aqueous-phase reforming
KW - Fischer–Tropsch water
KW - nickel-based catalyst
UR - http://www.scopus.com/inward/record.url?scp=85074683902&partnerID=8YFLogxK
U2 - 10.3390/catal9110936
DO - 10.3390/catal9110936
M3 - Article
SN - 2073-4344
VL - 9
JO - Catalysts
JF - Catalysts
IS - 11
M1 - 936
ER -
