1、BS EN 16723-1:2016Natural gas and biomethanefor use in transport andbiomethane for injection in thenatural gas networkPart 1: Specifications for biomethane forinjection in the natural gas networkBSI Standards PublicationWB11885_BSI_StandardCovs_2013_AW.indd 1 15/05/2013 15:06BS EN 16723-1:2016 BRITI
2、SH STANDARDNational forewordThis British Standard is the UK implementation of EN 16723-1:2016. The UK participation in its preparation was entrusted to TechnicalCommittee PTI/15, Natural Gas and Gas Analysis.A list of organizations represented on this committee can be obtained on request to its secr
3、etary.This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. The British Standards Institution 2016.Published by BSI Standards Limited 2016ISBN 978 0 580 93173 4 ICS 27.190 Compliance with a British Standard cannot
4、confer immunity from legal obligations.This British Standard was published under the authority of the Standards Policy and Strategy Committee on 30 November 2016.Amendments/corrigenda issued since publicationDate T e x t a f f e c t e dBS EN 16723-1:2016EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE N
5、ORM EN 16723-1 November 2016 ICS 27.190 English Version Natural gas and biomethane for use in transport and biomethane for injection in the natural gas network - Part 1: Specifications for biomethane for injection in the natural gas network Gaz naturel et biomthane pour utilisation dans le transport
6、 et biomthane pour injection dans les rseaux de gaz naturel - Partie 1 - Spcifications du biomthane pour injection dans les rseaux de gaz naturel Erdgas und Biomethan zur Verwendung im Transportwesen und Biomethan zur Einspeisung ins Erdgasnetz - Teil 1: Festlegungen fr Biomethan zur Einspeisung ins
7、 Erdgasnetz This European Standard was approved by CEN on 17 September 2016. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibli
8、ographical references concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN member. This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the respons
9、ibility of a CEN member into its own language and notified to the CEN-CENELEC Management Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Repub
10、lic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey andUnited Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALI
11、SATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2016 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 16723-1:2016 EBS EN 16723-1:2016EN 16723-1:2016 (E) 2 Contents Page Europea
12、n foreword . 3 Introduction 4 1 Scope 6 2 Normative references 6 3 Terms and definitions . 6 4 Parameters and test methods . 8 4.1 General 8 4.2 Standard reference conditions . 8 4.3 Applicable requirements and test methods for biomethane for injection in the natural gas network . 8 5 Sampling 10 An
13、nex A (informative) Parameters . 11 A.1 Total silicon 11 A.2 Hydrogen . 11 A.3 Compressor oil, dust impurities and biogenic materials 11 A.4 Water and hydrocarbon dew point temperature . 12 Annex B (informative) Odorization and sulfur . 13 B.1 CEN/TC 408 approach 13 B.2 General . 13 B.3 Total sulfur
14、 from Odorants . 13 Annex C (informative) Examples of different compliance schemes 14 C.1 General . 14 C.2 General prescriptions . 14 C.2.1 Permit conditions . 14 C.2.2 Upgrading plants 14 C.2.3 Control and monitoring . 14 C.2.4 Measurement . 15 C.2.5 Risk assessment 15 C.3 Common practices . 15 Ann
15、ex D (informative) A-deviations . 18 Bibliography . 19 BS EN 16723-1:2016EN 16723-1:2016 (E) 3 European foreword This document (EN 16723-1:2016) has been prepared by Technical Committee CEN/TC 408 “Natural gas and biomethane for use in transport and biomethane foe injection in the natural gas networ
16、k”, the secretariat of which is held by AFNOR. This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by May 2017, and conflicting national standards shall be withdrawn at the latest by May 2017. Attention
17、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. This document has been prepared under a mandate given to CEN by the European Commission and the European Free T
18、rade Association. EN 16723 consists of the following parts, under the general title “Natural gas and biomethane for use in transport and biomethane for injection in the natural gas network”: Part 1: Specifications for biomethane for injection in the natural gas network Part 2: Automotive fuel specif
19、ications According to the CEN-CENELEC Internal Regulations, the national standards organisations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, Fr
20、ance, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. BS EN 16723-1:2016EN 16723-1:2016 (E) 4 Introduction This European Standard wa
21、s prepared by CEN/TC 408 in response to the European Commission standardization mandate M/475. The Mandate asks for the development of a set of quality specifications for biomethane to be used as a fuel for vehicle engines and to be injected in natural gas pipelines (network). However, the scope of
22、the standard was widened according to BT decision C109/2012 that redefined the scope of CEN/TC 408: “Standardization of specifications for natural gas and biomethane as vehicle fuel and of biomethane for injection in the natural gas grid, including any necessary related methods of analysis and testi
23、ng. Production process, source and the origin of the source are excluded”. NOTE The CEN Technical Board (CEN/BT) is responsible to coordinate the work between technical bodies in order to achieve a coherent set of standards and to avoid overlaps. One of the aims of European policy in the field of en
24、ergy is to increase the security of energy supply in the EU as well as to contribute to reduce the emission of greenhouse gases accepted by the EU at Kyoto. In this context, a special focus is given to the development and use of energy from renewable sources. Directive 2009/28/EC on the promotion of
25、 the use of energy from renewable sources and amending and subsequently repealing Directives 2001/77/EC and 2003/30/EC stipulates clear aims regarding the percentage of renewables in EU energy consumption and states the related need to support the integration of energy from renewable sources into th
26、e energy networks including the establishment of appropriate technical rules in line with Directive 2003/55/EC (Article 6) replaced by 2009/73/EC (Article 8) for the realization of the competitive single European Gas Market and the technical interoperability of gas networks, (network connection, gas
27、 quality, gas odorization and gas pressure requirements). Supporting the EU policy and therefore the maximization of the production and use of biomethane and considering the absence of standards the European Commission DG ENER has included the injection of biomethane in natural gas pipelines in Mand
28、ate M/475. Biomethane in this context can be produced from biological (fermentation, digestion ) and thermochemical processing of biomass and is appropriate to be used as a blending component to natural gas. A special focus is given to the development and use of energy from renewable sources of biol
29、ogical and non-biological origin. Other gases complying with this standard can be injected. Figure 1 provides a visual representation of some applications of biomethane. Mandate M/475 indicates that the requirements for natural gas quality for injection in the natural gas network are developed by CE
30、N/TC 234 in answer to Mandate M/400 on natural gas quality. CEN/TC 408 should consider the work of the pending mandate M/400 on gas quality, and should refer to the parameters as defined and specified in EN 16726. This standard should exclude the definition of any parameters or substances that are a
31、ddressed in EN 16726. However, it may specify more strict limits for parameters or substances unique to biomethane if deemed technically necessary. If needed, additional parameters or substances should be defined. BS EN 16723-1:2016EN 16723-1:2016 (E) 5 Key 1 biogas from digestion or thermos chemica
32、l process 7 non-grid sourced natural gas 2 upgrading 8 local dedicated infrastructure 3 injection into the gas grid 9 automotive use 4 natural gas grid 10 domestic and industrial use 5 conditioning 11 Part 1: grid specification 6 refuelling station 12 Part 2: automotive specification Figure 1 Repres
33、entation of some flows and uses of biomethane and natural gas BS EN 16723-1:2016EN 16723-1:2016 (E) 6 1 Scope This European Standard specifies the requirements and test methods for biomethane at the point of entry into natural gas networks. 2 Normative references The following documents, in whole or
34、 in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 16726:2015, Gas infrastructure - Quality
35、 of gas - Group H EN ISO 10715:2000, Natural gas - Sampling guidelines (ISO 10715:1997) EN ISO 13443:2005, Natural gas - Standard reference conditions (ISO 13443:1996 including Corrigendum 1:1997) 3 Terms and definitions For the purposes of this document, the terms and definitions given in EN 16726:
36、2015 and the following apply. 3.1 biogas gas, comprising principally methane and carbon dioxide, obtained from the anaerobic digestion of biomass 3.2 biomass biological material from living, or recently living organisms, typically this may be plants or plant-derived materials 3.3 biomethane gas comp
37、rising principally methane, obtained from either upgrading of biogas or methanation of bio-syngas 3.4 bio-syngas gas, comprising principally carbon monoxide and hydrogen, obtained from gasification of biomass 3.5 gas infrastructure pipeline systems including pipework, underground gas storages and th
38、eir associated stations or plants for the transmission and distribution of gas 3.6 hydrocarbon dew point temperature temperature above which no condensation of hydrocarbons occurs at a specified pressure 3.7 lower heating value amount of heat that would be released by the complete combustion with ox
39、ygen of a specified quantity of gas, in such a way that the pressure at which the reaction takes place remains constant, and all the products of combustion are returned to the same specified temperature as that of the reactants, all of these products being in the gaseous state BS EN 16723-1:2016EN 1
40、6723-1:2016 (E) 7 3.8 methane number MN rating indicating the knocking characteristics of a gaseous fuel Note 1 to entry: MN has a similar use as the octane number for petrol. Note 2 to entry: MN expresses the volume percentage of methane in a methane/hydrogen mixture which, in a test engine under s
41、tandard conditions, has the same tendency to knock as the gaseous fuel to be examined. 3.9 natural gas complex gaseous mixture of hydrocarbons, primarily methane, but generally includes ethane, propane and higher hydrocarbons, and some non-combustible gases such as nitrogen and carbon dioxide Note 1
42、 to entry: Natural gas can also contain components or contaminants such as sulfur compounds and/or other chemical species. 3.10 natural gas network either transmission network or local distribution system 3.11 non-grid sourced natural gas natural gas non coming from the natural gas network 3.12 odor
43、ization addition of odorants to gas (normally odourless) to allow gas leaks to be recognized by smell at trace levels (before accumulating to dangerous concentrations in air) 3.13 syngas gas, comprising principally of carbon monoxide and hydrogen, obtained from gasification of fossil fuel 3.14 upgra
44、ding of biogas removal of carbon dioxide and contaminants from biogas 3.15 water dew point temperature temperature above which no condensation of water occurs at a specified pressure 3.16 Wobbe index volumetric-basis heating value, at specified reference conditions, divided by the square root of the
45、 relative density at the same specified metering reference conditions BS EN 16723-1:2016EN 16723-1:2016 (E) 8 4 Parameters and test methods 4.1 General This section deals with the various parameters for which requirements are given. Natural gas, biomethane and blends of those intended for injection
46、into natural gas networks shall be free from any constituents or impurities other than the ones described in this standard, to the extent that it cannot be transported, stored or utilized without quality adjustment or treatment. In the case of such other constituents and/or impurities, it may be nec
47、essary to obtain an approval from the competent and legitimate authority to define the acceptable risk in the territory of the injection point. 4.2 Standard reference conditions Unless stated otherwise, all volumes are for the real dry gas at ISO Standard Reference conditions of 15 C and 101,325 kPa
48、. Unless stated otherwise, all calorific values and Wobbe index are for the real dry gas at ISO Standard Reference conditions of: 15 C (combustion); and 15 C and 101,325 kPa (metering). In assessing compliance with this European Standard, parameters should be determined directly at ISO standard refe
49、rence conditions. If the properties are only available at other reference conditions and the actual gas composition is not known then conversion to ISO standard reference conditions shall be carried out using the procedure described in EN ISO 13443. 4.3 Applicable requirements and test methods for biomethane for injection in the natural gas network Biomethane shall meet the requirements of EN 16726 for common parameters and Table 1 only for parameters specific to biomethane. Health criteria assessment for biomethanes is complex and dependent upon the biogas feed
