Application of the exergy method to the environmental impact estimation: The nitric acid production as a case study

Copper‐Catalyzed Electrosynthesis of Nitrite and Nitrate from Ammonia: Tuning the Selectivity via an Interplay Between Homogeneous and Heterogeneous Catalysis

“…Nitrates (in the form of nitric acid) are traditionally produced by catalytic oxidation of ammonia via the hightemperature Ostwald process. In contemporary Ostwald plants, between 0.5 to 2.5 % of the total product yield is N 2 O, [4] a greenhouse gas that is approximately 300 times more potent than CO 2 in the atmosphere. [5] While techniques have been developed to treat these tail-gas emissions, effectiveness is limited and each method has its own unique set of problems associated with it.…”

Carbon footprint of a thermal energy storage system using phase change materials for industrial energy recovery to reduce the fossil fuel consumption

“…Analysing in detail this production process, over 70% of the CO 2 eq emissions were found to originate from the nitric acid production process. Although currently different methods are being developed for removing nitrogen compounds emissions from the nitric acid production plants [36], this process represents the largest source of N 2 O in the chemical industry [37]. Subsequently, the main reason for the great CF value of KNO 3 is the high N 2 O emissions associated with the nitric acid production process and its contribution to the greenhouse effect.…”

Minimisation of exergy losses in mono high pressure nitric acid process

“…But practically in the plants all over the world tail gas is treated by either use of a catalyst (Joshi et al, 1985;Qajar and Mowla, 2009) (selective catalytic reduction and non-selective catalytic reduction) or limiting its content in absorber itself (Extended absorption) (Kirova-Yordanova, 2011). In this process, extended absorption method is used for reduction of Nitrous gases in tail gas.…”