CEN/TR 17491:2020
(Main)Automotive fuels - Information on aniline, N-methyl aniline, N-ethyl aniline, N,N di-methyl aniline and secondary-butyl acetate when used as blending components in unleaded petrol
Automotive fuels - Information on aniline, N-methyl aniline, N-ethyl aniline, N,N di-methyl aniline and secondary-butyl acetate when used as blending components in unleaded petrol
This document is intended to inform about the potential technical consequences on engine parts and fuel systems when some types of chemical compounds are used as blending components in unleaded petrol. This document is not meant to intentionally limit market fuel development.
The chemical compounds addressed, specifically, in this document are:
- sec-butyl acetate (SBA) (CAS 105-46-4),
- aniline (CAS 62-53-3),
- N-methyl aniline (NMA) (CAS 100-61-8),
- N-ethyl aniline (NEA) (CAS 103-69-5), and
- N,N di-methyl aniline (DMA) (CAS 121-69-7).
Other chemical compounds are not addressed in this document, however, attention is drawn to EN 228, which requires that unleaded petrol be free from any adulterant or contaminant that can render the fuel unacceptable for use.
NOTE 1 This document does not address environmental and/or health related issues. These aspects are beyond the scope of CEN/TC 19 activities.
NOTE 2 For the purposes of this document, the term "% (V/V)" is used to represent the volume fraction, φ.
Kraftstoffe - Leitfaden zum Mischen von Benzin - Informationen zu Anilin, Anilinderivaten und sekundärem Butylacetat
Goriva za motorna vozila - Informacije o anilinu, N-metil anilinu, N-etil anilinu, N,N-dimetil anilinu in sekundarnem butil acetatu, če se uporabljajo kot mešalne komponente v neosvinčenem bencinu
General Information
- Status
- Published
- Publication Date
- 14-Apr-2020
- Technical Committee
- CEN/TC 19 - Petroleum products, lubricants and related products
- Drafting Committee
- CEN/TC 19/WG 21 - Specification for unleaded petrol
- Current Stage
- 6060 - Definitive text made available (DAV) - Publishing
- Start Date
- 15-Apr-2020
- Due Date
- 01-Apr-2021
- Completion Date
- 15-Apr-2020
Overview
CEN/TR 17491:2020 is a technical report developed by the European Committee for Standardization (CEN) that provides comprehensive information on the use of specific chemical compounds as blending components in unleaded petrol. The standard focuses on the potential technical impacts these substances might have on engine parts and fuel systems, especially highlighting concerns related to durability and performance. The compounds covered include:
- sec-butyl acetate (SBA)
- aniline
- N-methyl aniline (NMA)
- N-ethyl aniline (NEA)
- N,N di-methyl aniline (DMA)
This document does not restrict fuel market development but instead aims to inform fuel producers, automotive manufacturers, and regulators about possible issues associated with these additives.
Key Topics
Chemical Blending Components in Unleaded Petrol
The report emphasizes the importance of understanding the implications of using certain amine derivatives and esters as octane enhancers in petrol blends. While these chemicals can significantly improve the octane rating, they also pose risks:
- SBA (sec-butyl acetate) reacts strongly with acids and oxidants, causing swelling in rubber-based engine materials and promoting deposit formation.
- Aniline and its derivatives (NMA, NEA, DMA) enhance octane but can lead to lubrication oil degradation, increased engine deposits, and swelling of sealing components when present at high concentrations.
Technical Consequences on Engines
Accelerated engine tests and field observations highlight the following issues:
- Increased engine oil fouling and reduced oil durability.
- Formation of black sludge deposits on critical engine components such as pistons and valves.
- Rubber swelling affecting fuel system seals leading to potential leaks or malfunction.
- Variability in effects depending on concentration and the specific chemical used.
Regulatory and Specification Context
The report underscores that, according to European fuel standard EN 228:2012+A1:2017, unleaded petrol must be free from adulterants or contaminants that render it unfit for use. Although EN 228 does not specifically ban these chemical compounds, fuel blenders are responsible for ensuring blends comply with this requirement.
Applications
- Fuel formulation optimization: Fuel producers can use the insights in CEN/TR 17491:2020 to evaluate the trade-offs between enhancing fuel octane and the risk of damaging engine components.
- Engine design and testing: Automotive manufacturers can better understand compatibility issues and durability concerns related to these blending chemicals.
- Quality control and compliance: Regulators and fuel quality control laboratories can reference this report for guidance on identifying and regulating blending agents to prevent engine damage.
- Market surveillance: The standard aids in identifying potentially harmful fuel blends, especially in regions where such additives are more commonly used.
Related Standards
EN 228:2012+A1:2017 - Automotive fuels - Unleaded petrol - Requirements and test methods
This European standard details general requirements for unleaded petrol, including purity and contaminant limits, and sets the baseline for fuel quality relevant to CEN/TR 17491:2020.GOST 32515 - Motor unleaded petrols - Determination of N-methylaniline
A test method referenced for detecting N-methyl aniline levels in petrol, relevant for monitoring compliance with regional fuel regulations.Technical Regulation CU TR 013/2011
Provides regulatory context regarding fuels in the Eurasian Economic Union, including permissible levels for NMA and other blending components.
Keywords: unleaded petrol, fuel additives, sec-butyl acetate, aniline, N-methyl aniline, N-ethyl aniline, N,N di-methyl aniline, engine fouling, octane enhancer, fuel blending components, EN 228, fuel quality, automotive fuels, CEN standards, fuel system compatibility, oil degradation.
Frequently Asked Questions
CEN/TR 17491:2020 is a technical report published by the European Committee for Standardization (CEN). Its full title is "Automotive fuels - Information on aniline, N-methyl aniline, N-ethyl aniline, N,N di-methyl aniline and secondary-butyl acetate when used as blending components in unleaded petrol". This standard covers: This document is intended to inform about the potential technical consequences on engine parts and fuel systems when some types of chemical compounds are used as blending components in unleaded petrol. This document is not meant to intentionally limit market fuel development. The chemical compounds addressed, specifically, in this document are: - sec-butyl acetate (SBA) (CAS 105-46-4), - aniline (CAS 62-53-3), - N-methyl aniline (NMA) (CAS 100-61-8), - N-ethyl aniline (NEA) (CAS 103-69-5), and - N,N di-methyl aniline (DMA) (CAS 121-69-7). Other chemical compounds are not addressed in this document, however, attention is drawn to EN 228, which requires that unleaded petrol be free from any adulterant or contaminant that can render the fuel unacceptable for use. NOTE 1 This document does not address environmental and/or health related issues. These aspects are beyond the scope of CEN/TC 19 activities. NOTE 2 For the purposes of this document, the term "% (V/V)" is used to represent the volume fraction, φ.
This document is intended to inform about the potential technical consequences on engine parts and fuel systems when some types of chemical compounds are used as blending components in unleaded petrol. This document is not meant to intentionally limit market fuel development. The chemical compounds addressed, specifically, in this document are: - sec-butyl acetate (SBA) (CAS 105-46-4), - aniline (CAS 62-53-3), - N-methyl aniline (NMA) (CAS 100-61-8), - N-ethyl aniline (NEA) (CAS 103-69-5), and - N,N di-methyl aniline (DMA) (CAS 121-69-7). Other chemical compounds are not addressed in this document, however, attention is drawn to EN 228, which requires that unleaded petrol be free from any adulterant or contaminant that can render the fuel unacceptable for use. NOTE 1 This document does not address environmental and/or health related issues. These aspects are beyond the scope of CEN/TC 19 activities. NOTE 2 For the purposes of this document, the term "% (V/V)" is used to represent the volume fraction, φ.
CEN/TR 17491:2020 is classified under the following ICS (International Classification for Standards) categories: 75.160.20 - Liquid fuels. The ICS classification helps identify the subject area and facilitates finding related standards.
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Standards Content (Sample)
SLOVENSKI STANDARD
01-junij-2020
Goriva za motorna vozila - Informacije o anilinu, N-metil anilinu, N-etil anilinu, N,N-
dimetil anilinu in sekundarnem butil acetatu, če se uporabljajo kot mešalne
komponente v neosvinčenem bencinu
Automotive fuels - Information on aniline, N-methyl aniline, N-ethyl aniline, N,N di-methyl
aniline and secondary-butyl acetate when used as blending components in unleaded
petrol
Kraftstoffe - Leitfaden zum Mischen von Benzin - Informationen zu Anilin, Anilinderivaten
und sekundärem Butylacetat
Ta slovenski standard je istoveten z: CEN/TR 17491:2020
ICS:
75.160.20 Tekoča goriva Liquid fuels
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
CEN/TR 17491
TECHNICAL REPORT
RAPPORT TECHNIQUE
April 2020
TECHNISCHER BERICHT
ICS 75.160.20
English Version
Automotive fuels - Information on aniline, N-methyl
aniline, N-ethyl aniline, N,N di-methyl aniline and
secondary-butyl acetate when used as blending
components in unleaded petrol
Kraftstoffe - Leitfaden zum Mischen von Benzin -
Informationen zu Anilin, Anilinderivaten und
sekundärem Butylacetat
This Technical Report was approved by CEN on 6 April 2020. It has been drawn up by the Technical Committee CEN/TC 19.
CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,
Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and
United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2020 CEN All rights of exploitation in any form and by any means reserved Ref. No. CEN/TR 17491:2020 E
worldwide for CEN national Members.
Contents Page
European foreword . 3
1 Scope . 4
2 Normative references . 4
3 Terms and definitions . 4
4 Introduction . 5
5 Chemical compounds used as unleaded petrol blending components . 5
6 Effects of SBA, aniline, NMA, NEA and DMA on engine and fuel quality . 5
6.1 SBA . 5
6.2 Aniline, NMA, NEA and DMA . 6
7 Field experience . 6
8 European specifications for unleaded petrol . 7
Bibliography . 8
European foreword
This document (CEN/TR 17491:2020) has been prepared by Technical Committee CEN/TC 19 “Gaseous
and liquid fuels, lubricants and related products of petroleum, synthetic and biological origin”, the
secretariat of which is held by NEN.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN shall not be held responsible for identifying any or all such patent rights.
1 Scope
This document is intended to inform about the potential technical consequences on engine parts and
fuel systems when some types of chemical compounds are used as blending components in unleaded
petrol. This document is not meant to intentionally limit market fuel development.
The chemical compounds addressed, specifically, in this document are:
— sec-butyl acetate (SBA) (CAS 105-46-4),
— aniline (CAS 62-53-3),
— N-methyl aniline (NMA) (CAS 100-61-8),
— N-ethyl aniline (NEA) (CAS 103-69-5), and
— N,N di-methyl aniline (DMA) (CAS 121-69-7).
Other chemical compounds are not addressed in this document, however, attention is drawn to EN 228,
which requires that unleaded petrol be free from any adulterant or contaminant that can render the fuel
unacceptable for use.
NOTE 1 This document does not address environmental and/or health related issues. These aspects are
beyond the scope of CEN/TC 19 activities.
NOTE 2 For the purposes of this document, the term “% (V/V)” is used to represent the volume fraction, φ.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements of this document. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including any amendments) applies.
EN 228:2012+A1:2017, Automotive fuels - Unleaded petrol - Requirements and test methods
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
• IEC Electropedia: available at http://www.electropedia.org/
• ISO Online browsing platform: available at https://www.iso.org/obp/ui
3.1
accelerated test
test performed under controlled conditions aimed at reflecting in an engine but in a shorter time frame
Note 1 to entry For example, the effects observed on the lubricant over the oil drain interval.
4 Introduction
Over the recent
...
CEN/TR 17491:2020 offers a comprehensive overview of the implications of using specific chemical compounds, namely aniline, N-methyl aniline, N-ethyl aniline, N,N di-methyl aniline, and secondary-butyl acetate as blending components in unleaded petrol. The scope of this standard is well-defined, ensuring that stakeholders in the automotive fuels sector are informed about the potential technical consequences these compounds may pose to engine parts and fuel systems. One of the major strengths of this document is its focused approach to only include the chemicals that are most relevant to the discussed context. By specifically addressing sec-butyl acetate and the various anilines, the standard caters precisely to the needs of automotive fuel developers and manufacturers who are exploring blending options. Furthermore, it strategically avoids restricting fuel market development, emphasizing that the intent is to provide information rather than impose limitations. This is particularly relevant as the industry evolves and seeks innovative solutions in fuel formulation. The document also acknowledges the critical aspect of compliance with existing regulations, such as EN 228, which mandates that unleaded petrol must be free from any adulterants or contaminants. This highlight ensures that the standard does not exist in a vacuum but aligns with other regulatory frameworks, thereby enhancing its practicality and relevance for industry professionals. Moreover, the document specifies the terminology used, such as "% (V/V)" for volume fractions, which is essential for clear communication among stakeholders involved in fuel formulation. However, it is noteworthy that CEN/TR 17491:2020 does not address environmental or health-related issues, which may be a limitation for some users. Consequently, those seeking comprehensive assessments beyond technical implications would need to consult additional resources. In summary, CEN/TR 17491:2020 serves as a valuable resource for understanding the technical challenges associated with blending specific chemical compounds in unleaded petrol, providing clarity and guidance for industry practices while ensuring compliance with regulatory standards. Its targeted approach and relevance to ongoing fuel development initiatives position it as a critical document for automotive fuel professionals.
Die Norm CEN/TR 17491:2020 befasst sich umfassend mit der Verwendung bestimmter chemischer Verbindungen, insbesondere Anilin, N-Methylanilin, N-Ethylanilin, N,N-Dimethylanilin und sec-Butylacetat, als Mischkomponenten in bleifreiem Benzin. Ihr Hauptziel liegt in der Bereitstellung technischer Informationen über die Auswirkungen dieser Substanzen auf Motorenteile und Kraftstoffsysteme. Die Norm hebt hervor, dass die Verwendung dieser Verbindungen potenzielle technische Konsequenzen haben kann, ohne jedoch die Entwicklung von Marktkraftstoffen absichtlich einzugrenzen. Die Stärken dieser Norm liegen in ihrem präzisen Fokus auf spezifische chemische Verbindungen, die in der Automobilindustrie von Bedeutung sind. Durch die detaillierte Analyse von sec-Butylacetat und anderen Anilin-Derivaten wird ein besseres Verständnis für die Wechselwirkungen zwischen Kraftstoffen und Fahrzeugkomponenten geschaffen. Dies ist besonders relevant für Hersteller von Kraftstoffen und Automobilen, da sie auf fundierte Informationen angewiesen sind, um die Leistung und Langlebigkeit ihrer Produkte zu gewährleisten. Ein weiterer wesentlicher Aspekt der Norm besteht darin, dass sie in Übereinstimmung mit den Anforderungen der EN 228 steht, die sicherstellt, dass bleifreies Benzin frei von Verunreinigungen oder Zusatzstoffen ist, die dessen Verwendung beeinträchtigen könnten. Dies unterstreicht die Relevanz der Norm im Kontext der Qualitätskontrolle und der Sicherheit in der Kraftstoffindustrie. Zusammenfassend spielt die CEN/TR 17491:2020 eine entscheidende Rolle beim Verständnis der Auswirkungen von Anilin und verwandten Verbindungen auf bleifreies Benzin und stärkt damit die Sicherheit und Effizienz in der Automobilbranche.
La norme CEN/TR 17491:2020 est un document essentiel qui fournit des informations pertinentes sur des composés chimiques spécifiques, tels que l’aniline, la N-méthyl aniline, la N-éthyl aniline, la N,N-diméthyl aniline et l'acétate de sec-butyle, lorsqu'ils sont utilisés comme composants d'adiition dans l'essence sans plomb. L'objectif principal de cette norme est d'informer sur les conséquences techniques potentielles sur les pièces moteur et les systèmes de carburant lors de l'utilisation de ces composants. L'un des points forts de cette norme réside dans sa portée ciblée. En se concentrant spécifiquement sur les effets des composés mentionnés sur les véhicules, elle permet aux fabricants et aux fournisseurs de carburants de mieux comprendre les implications techniques liées à leur utilisation. Cela contribue à assurer la qualité et la performance des carburants, tout en respectant les exigences de la norme EN 228, qui stipule que l'essence sans plomb doit être exempte de tout contaminant ou adjuvant pouvant rendre le carburant inacceptable pour l'utilisation. De plus, la norme CEN/TR 17491:2020 ne vise pas à limiter le développement du marché des carburants, mais plutôt à fournir une base solide pour la prise de décision concernant l'intégration de ces composants dans les formulations de carburant. Cela démontre une approche proactive en matière d'innovation dans le secteur de l'automobile, tout en consciencieusement adressant les aspects techniques. Il est également important de noter que cette norme ne traite pas des questions environnementales ou de santé, ce qui est délibéré et en dehors du cadre des activités de CEN/TC 19. Cette précision permet aux parties prenantes de se concentrer sur les impacts techniques sans distraction par des considérations extrinsèques. En somme, la norme CEN/TR 17491:2020 est un document crucial pour le secteur des carburants automobiles, fournissant des informations techniques pertinentes tout en favorisant le développement continu du marché des carburants sans plomb. Sa clarté et son approche directe en font un outil utile pour les professionnels du secteur, garantissant un meilleur alignement sur les standards de qualité requis.
CEN/TR 17491:2020 표준 문서는 자동차 연료와 관련하여 혼합 성분으로 사용되는 화학 화합물, 특히 아닐린, N-메틸 아닐린, N-에틸 아닐린, N,N-디메틸 아닐린 및 세컨더리 부틸 아세테이트가 엔진 부품 및 연료 시스템에 미치는 잠재적인 기술적 결과에 대해 설명하고 있습니다. 이 표준은 무연 휘발유의 품질을 보장하고, 특정 화학 화합물이 연료 시스템에 미치는 영향을 이해하는 데 필수적인 정보를 제공합니다. 이 문서의 강점은 혼합 성분이 엔진 성능에 미칠 수 있는 영향을 명확히 하고, 연료 개발에 직간접적으로 기여할 수 있는 지침을 제공한다는 점입니다. 또한, 표준은 무연 휘발유가 첨가물이나 오염물로 인해 사용이 부적합해지지 않도록 EN 228과 같은 요구사항을 언급하여 안전성을 강화합니다. CEN/TR 17491:2020은 자동차 산업에서 화학 성분의 활용을 자극하는 데 도움이 되며, 시장 개발을 제한하지 않으면서도 필요한 기술적 정보와 안전 프로토콜을 제공합니다. 또한, 문서에서 다루지 않는 환경 및 건강 문제는 CEN/TC 19의 범위를 벗어나지만, 이를 통해 개발자와 연구자들이 향후 고려해야 할 중요 요소임을 환기시킵니다. 결국, 이 표준의 관련성은 연료 혼합 성분에 대한 명확한 안내를 제공함으로써 자동차 연료의 안전성과 효율성을 높이고, 산업 내 기술적 발전을 도모하는 데 기여하는 것입니다.
CEN/TR 17491:2020の標準文書は、自動車燃料におけるブレンド成分として使用されるアニリン、N-メチルアニリン、N-エチルアニリン、N,N-ジメチルアニリン、及びセカンダリー-ブチルアセテートに関する情報を提供することを目的としています。この文書は特に、無鉛ガソリンにおけるこれらの化学化合物の使用がエンジン部品や燃料システムに与える潜在的な技術的影響について詳述しています。 この標準の強みは、その対象となる化学成分を明確に定めている点です。特に、sec-ブチルアセテート、アニリン、N-メチルアニリン、N-エチルアニリン、N,N-ジメチルアニリンのそれぞれについての情報を提供することで、燃料開発における適切なブレンド成分の選定に寄与しています。また、この文書は市場の燃料開発を意図的に制限するものではなく、技術的な観点からの情報提供に徹しているため、業界のイノベーションを促進する役割を果たしています。 さらに、CEN/TR 17491:2020は、無鉛ガソリンは不純物や異物から自由であるべきというEN 228の要件にも言及しており、燃料の品質維持に重要なガイドラインを示しています。ただし、環境および健康に関連する問題についてはこの文書の範囲外であることが注意事項として記されています。この点も明確にしていることで、利用者が期待する情報と文書の範囲を混同しないよう配慮されています。 全体として、CEN/TR 17491:2020は、自動車用無鉛ガソリンにおける化学化合物の使用に関する技術的な影響を理解する上で非常に重要な文書であり、業界の専門家や研究者にとって有益なリソースと言えるでしょう。
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