TY - JOUR
T1 - Process Intensification in Nitric Acid Plants by Catalytic Oxidation of Nitric Oxide
AU - Grande, Carlos A.
AU - Andreassen, Kari Anne
AU - Cavka, Jasmina H.
AU - Waller, David
AU - Lorentsen, Odd Arne
AU - Øien, Halvor
AU - Zander, Hans Jörg
AU - Poulston, Stephen
AU - García, Sonia
AU - Modeshia, Deena
N1 - Generated from Scopus record by KAUST IRTS on 2022-09-13
PY - 2018/8/8
Y1 - 2018/8/8
N2 - We have evaluated the kinetics of the catalytic oxidation of NO to NO2 using a Pt/alumina catalyst, under conditions relevant to industrial nitric acid production: NO and steam contents up to 5% and 20%, respectively, with temperatures from 250 to 350 °C, and pressures up to 4.7 bar. The objective is to replace the current homogeneous oxidation process, which requires cooling of the process gas and a long residence time, with a more intensive heterogeneous oxidation process, allowing the heat of reaction (114 kJ/mol) to be recovered. This may give a 10% improvement in overall heat recovery and, additionally, lead to reduced capital expenditure (CAPEX) and footprint of new build plants. With world production of nitric acid of 60 million tonnes per annum, the transformation from the homogeneous oxidation of NO to a heterogeneous oxidation can lead to significant environmental benefits and cost reduction.
AB - We have evaluated the kinetics of the catalytic oxidation of NO to NO2 using a Pt/alumina catalyst, under conditions relevant to industrial nitric acid production: NO and steam contents up to 5% and 20%, respectively, with temperatures from 250 to 350 °C, and pressures up to 4.7 bar. The objective is to replace the current homogeneous oxidation process, which requires cooling of the process gas and a long residence time, with a more intensive heterogeneous oxidation process, allowing the heat of reaction (114 kJ/mol) to be recovered. This may give a 10% improvement in overall heat recovery and, additionally, lead to reduced capital expenditure (CAPEX) and footprint of new build plants. With world production of nitric acid of 60 million tonnes per annum, the transformation from the homogeneous oxidation of NO to a heterogeneous oxidation can lead to significant environmental benefits and cost reduction.
UR - https://pubs.acs.org/doi/10.1021/acs.iecr.8b01483
UR - http://www.scopus.com/inward/record.url?scp=85050609907&partnerID=8YFLogxK
U2 - 10.1021/acs.iecr.8b01483
DO - 10.1021/acs.iecr.8b01483
M3 - Article
SN - 1520-5045
VL - 57
SP - 10180
EP - 10186
JO - Industrial and Engineering Chemistry Research
JF - Industrial and Engineering Chemistry Research
IS - 31
ER -