ISO 14404-3:2017
(Main)Calculation method of carbon dioxide emission intensity from iron and steel production — Part 3: Steel plant with electric arc furnace (EAF) and coal-based or gas-based direct reduction iron (DRI) facility
Calculation method of carbon dioxide emission intensity from iron and steel production — Part 3: Steel plant with electric arc furnace (EAF) and coal-based or gas-based direct reduction iron (DRI) facility
ISO 14404-3:2017 specifies calculation methods applicable to those companies using an electric arc furnace (EAF) to produce steel and having direct reduced iron (DRI) facilities within their premises. It can be used to evaluate the total annual carbon dioxide (CO2) emissions and the emission factor of CO2 per unit of steel production of the entire steel production process. This document is applicable to plants producing mainly carbon steel. It includes boundary definition, material and energy flow definition and emission factor of CO2. Besides direct source import to the boundary, upstream and credit concept is applied to exhibit the plant CO2 intensity. ISO 14404-3:2017 supports the steel producer to establish CO2 emissions attributable to a site. This document cannot be used to calculate benchmarks or to compare CO2 intensities of production processes that are operated inside the site. Conversion to energy consumption and to consumption efficiency can be obtained using Annex A.
Méthode de calcul de l'intensité de l'émission de dioxyde de carbone de la production de la fonte et de l'acier — Partie 3: Usine de fabrication d'acier dans des fours électriques à arc (FÉA) et installations de production de minerais de fer préréduits avec procédés au charbon ou au gaz
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Standards Content (Sample)
INTERNATIONAL ISO
STANDARD 14404-3
First edition
2017-06
Calculation method of carbon dioxide
emission intensity from iron and steel
production —
Part 3:
Steel plant with electric arc furnace
(EAF) and coal-based or gas-based
direct reduction iron (DRI) facility
Méthode de calcul de l’intensité de l’émission de dioxyde de carbone
de la production de la fonte et de l’acier —
Partie 3: Usine de fabrication d’acier dans des fours électriques à arc
(FÉA) et installations de production de minerais de fer préréduits
avec procédés au charbon ou au gaz
Reference number
©
ISO 2017
© ISO 2017, Published in Switzerland
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ii © ISO 2017 – All rights reserved
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
3.1 Emissions . 1
3.2 Gas fuel . 2
3.3 Liquid fuel . 2
3.4 Solid fuel . 2
3.5 Auxiliary material . 3
3.6 Energy carriers . 3
3.7 Ferrous containing materials . 4
3.8 Alloys . 4
3.9 Product and by-product . 4
3.10 Others . 4
4 Symbols . 5
5 Principles . 6
5.1 General . 6
5.2 Relevance . 6
5.3 Completeness . 6
5.4 Consistency . 6
5.5 Accuracy . 6
5.6 Transparency . 6
6 Definition of boundary . 7
6.1 General . 7
6.2 Category 1 . 7
6.3 Category 2 . 8
6.4 Category 3 . 8
6.5 Category 4 . 8
7 Calculation . 8
7.1 General . 8
7.2 Calculation procedure . 8
7.2.1 Data collection of crude steel production . 8
7.2.2 Data collection direct and/or upstream CO emission sources . 8
7.2.3 Data collection of credit CO emission sources .10
7.2.4 Calculation .11
Annex A (informative) Calculation of energy consumption and intensity .14
Annex B (informative) An example of template for using different emission factors or
emission sources from Table 4 .15
Annex C (informative) An example of CO emission and intensity data and calculations for a
steel plant with a DRI facility .17
Bibliography .20
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards
bodies (ISO member bodies). The work of preparing International Standards is normally carried out
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committee has been established has the right to be represented on that committee. International
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ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of
electrotechnical standardization.
The procedures used to develop this document and those intended for its further maintenance are
described in the ISO/IEC Directives, Part 1. In particular the different approval criteria needed for the
different types of ISO documents should be noted. This document was drafted in accordance with the
editorial rules of the ISO/IEC Directives, Part 2 (see www .iso .org/ directives).
Attention is drawn to the possibility that some of the elements of this document may be the subject of
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URL: w w w . i s o .org/ iso/ foreword .html.
This document was prepared by Technical Committee ISO/TC 17, Steel.
A list of all the parts in the ISO 14404 series can be found on the ISO website.
iv © ISO 2017 – All rights reserved
Introduction
The steel industry recognizes there is an urgent need to take actions concerning climate change. Slowing
and halting global warming requires reductions in GHG emissions on a global scale. To play a role in
achieving these reductions, it is necessary for steel plants to determine the amount of CO emitted
during the production of steel products, in order to identify further CO reduction opportunities.
The steel production process involves complex chemical reactions, several heating cycles and the
cycling of various by-products. This variety of imports, including raw materials, reactive agents, fuel
and heat sources, are transformed into a wide range of steel products, by-products, waste materials
and waste heat.
Steel plants manufacture various products including: flat items, long items, pipes, tubes and many
others. In addition, they produce unique specialty-grade steel products with high performance. These
are achieved using a number of sub-processes including micro-alloying and applying surface treatments
like galvanizing and coating, which require additional heat treatments. The variety of products
produced and processes used means there are not two identical steel plants in the world.
Climate regulations in each country require steel companies to devise methods to lower CO emissions
while continuing to produce steel products by these diverse and complex steelmaking processes. To
accomplish this, it is desirable to have universally common indicators for determining steel plant CO
emissions.
There are many methods for calculating CO emission intensity from steel plants and specific processes.
Each method was created to meet the objectives of a particular country or region. In some cases, a
single country can have several calculation methods in order to fulfil different objectives. Each one of
these methods reflects the unique local characteristics of a particular country or region. Therefore,
these methods cannot be used for comparisons of CO emission intensity from steel plants located in
different countries and regions.
The World Steel Association (worldsteel), which consists of more than 161 major steel companies in
60 countries and regions of the world, has been working on the development of a calculation method
for CO emission intensity to facilitate the improvement of steel plant CO emissions. The calculation
2 2
method is based on an objective comparison of CO emissions intensity among the member steel
companies located in different places in the world. An agreement was reached among members and
worldsteel issued the method as “CO Emissions Data Collection User Guide”. Actual data collection
among worldsteel members based upon the guide started in 2007. Furthermore, worldsteel is
encouraging non-member steel companies to begin using the guide to
...
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