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sector:ippu:chemical_industry:nitric_acid_production:start [2021/01/26 14:27] – kotzulla | sector:ippu:chemical_industry:nitric_acid_production:start [2022/03/04 12:34] – [Table] kotzulla | ||
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===== Short description ===== | ===== Short description ===== | ||
- | ^ | + | ^ Category Code ^ Method |
- | | T2 | PS | D | + | | 2.B.2 |
+ | ^ ^ | ||
+ | | Key Category: | ||
- | {{page> | + | {{page> |
- | During the production of nitric acid, nitrogen oxide occurs | + | During the production of nitric acid (HNO< |
* Oxidation of NH< | * Oxidation of NH< | ||
* Conversion of NO to NO< | * Conversion of NO to NO< | ||
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**Catalytic oxidation of ammonia** | **Catalytic oxidation of ammonia** | ||
- | A mixture of ammonia and air at a ratio of 1:9 is oxidised, in the presence of a platinum catalyst alloyed with rhodium and/or palladium, at a temperature of between 800 and 950 °C. The related | + | A mixture of ammonia and air at a ratio of 1:9 is oxidised, in the presence of a platinum catalyst alloyed with rhodium and/or palladium, at a temperature of between 800 and 950 °C. The reaction according to the Oswald process is as follows: |
4 NH< | 4 NH< | ||
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4 NH< | 4 NH< | ||
+ | |||
4 NH< | 4 NH< | ||
All three oxidation reactions are exothermic. Heat may be recovered to produce steam for the process and for export to other plants and/or to preheat the residual gas. The reaction water is condensed in a cooling condenser, during the cooling of the reaction gases, and is then conveyed into the absorption column. | All three oxidation reactions are exothermic. Heat may be recovered to produce steam for the process and for export to other plants and/or to preheat the residual gas. The reaction water is condensed in a cooling condenser, during the cooling of the reaction gases, and is then conveyed into the absorption column. | ||
- | ===== Methodology | + | ===== Method |
+ | In Germany, there are currently nine nitric acid plants. | ||
==== Activity data ==== | ==== Activity data ==== | ||
- | As this source category is a key category for N< | + | As this source category is a key category for N< |
+ | |||
+ | This data is made available basically via a co-operation agreement with the nitric acid producers and the IVA (Industrieverband Agrar). As the data provided by the producers has to be treated as confidential, | ||
+ | |||
+ | According to the IVA, catalytic reduction is used as an abatement method in some of the plants. | ||
+ | |||
+ | ==== Emission factors ==== | ||
- | These data are made available basically via a co-operation agreement with the nitric acid producers and the IVA (Industrieverband Agrar). As the data provided by the producers has to be treated as confidential, it is anonymised by the IVA before submitting it to the UBA. Here, one producer is delivering its data directly to the UBA. After checking these specific data, they are merged with the IVA. | + | Different T2 default NO< |
+ | **Table 1**: Tier 2 emission factor of NOx for source category 2.B.2 Nitric acid production | ||
+ | ^ Emission factor (kg/ | ||
+ | | 7.5 | medium pressure process | ||
+ | | 3 | high pressure process | ||
+ | | 0.4 | low, medium and high pressure process, catalytic reduction | ||
- | According to the IVA, catalytic reduction is used as a reduction method in some of the plants. | ||
- | ==== Emission factor ==== | ||
- | For NO< | ||
===== Recalculations ===== | ===== Recalculations ===== | ||
- | With **activity data** and **emission factors** remaining unrevised, no recalculations have been carried out compared to last year's submission. | + | With emission factors |
+ | **Table 2**: NOx emissions from nitric acid production | ||
+ | ^ ^ Submission 2022 ^ Submission 2021 ^ Difference | ||
+ | ^ Year ^ NOₓ emission (in kt) ^ NOₓ emission (in kt) ^ NOₓ emission (in kt) ^ | ||
+ | ^ 1990 | 11.30 | 16.98 | 5.68 | | ||
+ | ^ 1991 | 10.40 | 15.60 | 5.20 | | ||
+ | ^ 1992 | 10.08 | 14.76 | 4.69 | | ||
+ | ^ 1993 | 9.60 | 14.76 | 5.17 | | ||
+ | ^ 1994 | 9.45 | 14.59 | 5.14 | | ||
+ | ^ 1995 | 10.33 | 16.25 | 5.91 | | ||
+ | ^ 1996 | 10.65 | 16.60 | 5.95 | | ||
+ | ^ 1997 | 10.50 | 16.33 | 5.83 | | ||
+ | ^ 1998 | 10.55 | 16.54 | 5.99 | | ||
+ | ^ 1999 | 10.94 | 17.40 | 6.46 | | ||
+ | ^ 2000 | 11.93 | 19.23 | 7.30 | | ||
+ | ^ 2001 | 11.24 | 18.07 | 6.83 | | ||
+ | ^ 2002 | 14.05 | 21.12 | 7.07 | | ||
+ | ^ 2003 | 14.67 | 22.49 | 7.82 | | ||
+ | ^ 2004 | 17.59 | 25.99 | 8.40 | | ||
+ | ^ 2005 | 17.92 | 26.34 | 8.43 | | ||
+ | ^ 2006 | 18.26 | 26.95 | 8.69 | | ||
+ | ^ 2007 | 14.28 | 28.79 | 14.50 | | ||
+ | ^ 2008 | 12.91 | 26.30 | 13.39 | | ||
+ | ^ 2009 | 2.78 | 22.58 | 19.81 | | ||
+ | ^ 2010 | 1.01 | 25.25 | 24.24 | | ||
+ | ^ 2011 | 0.99 | 24.85 | 23.85 | | ||
+ | ^ 2012 | 1.00 | 24.90 | 23.90 | | ||
+ | ^ 2013 | 1.03 | 25.72 | 24.69 | | ||
+ | ^ 2014 | 1.04 | 26.01 | 24.97 | | ||
+ | ^ 2015 | 1.01 | 25.22 | 24.21 | | ||
+ | ^ 2016 | 1.02 | 25.41 | 24.39 | | ||
+ | ^ 2017 | 1.08 | 27.11 | 26.03 | | ||
+ | ^ 2018 | 1.07 | 26.69 | 25.62 | | ||
+ | ^ 2019 | 1.07 | 26.69 | 25.62 | | ||
<WRAP center round info 60%> | <WRAP center round info 60%> | ||
- | For pollutant-specific information on recalculated emission estimates for Base Year and 2018, please see the pollutant specific recalculation tables following [[general: | + | For pollutant-specific information on recalculated emission estimates for Base Year and 2019, please see the pollutant specific recalculation tables following [[general: |
</ | </ | ||
===== Planned improvements ===== | ===== Planned improvements ===== | ||
- | Germany is in contact with the IVA with the aim to get a Country-specific | + | No category-specific |