meta data for this page
Differences
This shows you the differences between two versions of the page.
Both sides previous revisionPrevious revisionNext revision | Previous revision | ||
sector:ippu:chemical_industry:nitric_acid_production:start [2021/01/26 14:27] – kotzulla | sector:ippu:chemical_industry:nitric_acid_production:start [2022/03/22 08:02] (current) – [Recalculations] kotzulla | ||
---|---|---|---|
Line 3: | Line 3: | ||
===== 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< | ||
Line 19: | Line 21: | ||
**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< | ||
Line 26: | Line 28: | ||
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< |
- | 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, | + | 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 ==== | ||
+ | |||
+ | 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 |