1、 Guide for Exhaust Emission Abatement GUIDE FOR EXHAUST EMISSION ABATEMENT JANUARY 2018 American Bureau of Shipping Incorporated by Act of Legislature of the State of New York 1862 2017 American Bureau of Shipping. All rights reserved. ABS Plaza 16855 Northchase Drive Houston, TX 77060 USA Foreword
2、Foreword (2018) International, regional, national and local air emissions legislation is driving the development of primary engine technologies and secondary exhaust emissions abatement systems to reduce exhaust emissions from ships. These techniques are primarily aimed at meeting IMO MARPOL Annex V
3、I Regulations 13 and 14 requirements for nitrogen oxide emissions from diesel engines and sulfur oxide emissions from all fuel-burning equipment on board. A number of techniques and design features are utilized by internal combustion engine manufacturers to reduce NOx emissions. However, to achieve
4、compliance with the IMO Tier III limit (effective on ships constructed on or after 1 January 2016 which operate in the North American or United States Caribbean Sea NOx emission control areas and other future emission control areas that may be designated by IMO), it is anticipated that the predomina
5、nt exhaust emission abatement technologies used will be Exhaust Gas Recirculation (EGR) or Selective Catalytic Reduction (SCR) systems. The IMO limits SOxemissions by regulating the sulfur content of marine fuels, and it is anticipated that the reductions in the emission control area and global sulf
6、ur limits to 0.1% and 0.5%, effective from 1 January 2015 and 1 January 2020 respectively, will promote increasing use of exhaust gas cleaning systems, such as SOx scrubbers. In all cases, the air emissions performance testing, statutory certification, and statutory survey aspects are regulated thro
7、ugh Annex VI in association with any applicable IMO Guidelines. At the time of issuance of this Guide, the applicable Guidelines for Selective Catalytic Reduction are IMO Resolution MEPC.291(71) 2017 Guidelines Addressing Additional Aspects to the NOxTechnical Code 2008 With Regard to Particular Req
8、uirements Related to Marine Diesel Engines Fitted With Selective Catalytic Reduction (SCR) Systems, adopted 7 July 2017. The applicable Guidelines for SOxexhaust gas cleaning systems are IMO Resolution MEPC.259(68) 2015 Guidelines for Exhaust Gas Cleaning Systems, adopted 15 May 2015. Acceptance of
9、a SOxexhaust gas cleaning system is regulated as an alternative, or equivalent method, under MARPOL Annex VI Regulation 4 and is subject to approval by the flag Administration of the vessel. This Guide has been developed in order to provide guidance and requirements for the design and construction o
10、f exhaust emission abatement systems, focusing on SOxscrubbers, SCR systems, and EGR arrangements, and may be applied to all vessel types. An exhaust emission abatement system is considered to be fully approved upon verification of compliance with both the ABS requirements and the applicable IMO Reg
11、ulations and Guidelines. This Guide covers only the Classification approval aspects, and statutory approval would be made by ABS as a separate parallel process in the capacity of a Recognized Organization for the vast majority of flag Administrations. The optional exhaust emission abatement notation
12、s detailed under 1/9.3 through 1/9.9 will be assigned upon request and where the exhaust emission abatement system has been verified to be in compliance with the applicable requirements of this Guide. Where a notation has not been requested, the exhaust emission abatement system is to be verified to
13、 be in compliance with the minimum requirements prescribed under 1/9.11 of this Guide. This is applicable to new construction and existing vessel modifications. The applicable edition of the ABS Rules for Building and Classing Steel Vessels (Steel Vessel Rules) is to be used in association with this
14、 Guide. This Guide becomes effective on the first day of the month of publication. Users are advised to periodically check the ABS website at www.eagle.org to verify the most current and applicable version of this Guide. We welcome your feedback. Comments or suggestions can be sent electronically by
15、 email to rsdeagle.org. ii ABSGUIDE FOR EXHAUST EMISSION ABATEMENT .2018 Table of Contents GUIDE FOR EXHAUST EMISSION ABATEMENT CONTENTS SECTION 1 General 1 1 Scope and Application 1 3 General . 1 5 Objectives . 2 7 Definitions and Abbreviations . 3 7.1 CO . 3 7.3 CO2 3 7.5 EGC 3 7.7 EGR 3 7.9 EEMS
16、3 7.11 Fuel Oil Combustion Unit (FOCU) . 3 7.13 HC . 3 7.15 MARPOL . 3 7.17 MSDS 3 7.19 NOx 3 7.21 O2 3 7.23 PM . 3 7.25 Recognized Organization (RO) . 4 7.27 Recognized Standard 4 7.29 Rules . 4 7.31 SCR . 4 7.33 SOx 4 7.35 Urea 4 9 Classification Notations . 4 9.1 General 4 9.3 EGC SOx Scrubbers .
17、 4 9.5 EGC SCR Systems 4 9.7 EGC EGR Systems 5 9.9 Exhaust Emission Monitoring Systems . 5 9.11 Minimum Requirements for Systems Where EGC Notation is not Requested . 5 11 Operating and Maintenance Instruction Manuals . 5 13 Alternatives . 5 15 Certification . 6 TABLE 1 Minimum Requirements for EGC
18、Systems where EGC Notation is not Requested . 6 ABSGUIDE FOR EXHAUST EMISSION ABATEMENT .2018 iii SECTION 2 EGC SOx Scrubbers . 7 1 General . 7 3 Plans and Data to be Submitted . 7 5 EGC-SOx System Operation and Maintenance Manuals . 8 7 EGC-SOx System Configuration and Vessel Integration 8 7.1 Gene
19、ral 8 7.3 Compatibility with Fuel Oil Combustion Units 8 7.5 Redundancy 9 7.7 Essential Services . 9 7.9 Exhaust Bypass/Dry Running of Scrubbers . 9 7.11 Prevention of Fuel Oil Combustion Unit Flooding 9 7.13 Inclinations . 9 7.15 Vessel Stability 9 7.17 Inspection and Maintenance 10 9 EGC-SOx Syste
20、m Equipment . 10 9.1 Pumps/Fans 10 9.3 Exhaust Plume Heaters . 10 9.5 Chemical Treatment System . 10 9.7 Dry Scrubber Consumable Handling Equipment . 10 9.9 Electrical System . 10 11 EGC-SOx System Piping . 11 11.1 Exhaust Gas Piping Systems 11 11.3 Washwater Piping 12 11.5 Chemical Treatment Piping
21、 Systems . 13 11.7 Residue System. 15 13 Control, Alarm, and Monitoring System 16 13.1 General 16 13.3 Control and Monitoring System . 16 13.5 Safety Shutdown System . 17 15 FMEA Integration Test 17 17 Surveys During Construction 17 17.1 General 17 17.3 Surveys at Manufacturers Facility . 17 17.5 Su
22、rveys During Installation 17 17.7 Surveys During Trials 18 TABLE 1 Monitoring and Safety System Functions for EGC-SOx Scrubber Systems . 18 TABLE 2 Certification of EGC-SOx Scrubber Systems at the Manufacturers Facility 19 SECTION 3 EGC Selective Catalytic Reduction Systems 20 1 General . 20 3 Plans
23、 and Data to be Submitted . 20 5 SCR Operation and Maintenance Manuals 21 iv ABSGUIDE FOR EXHAUST EMISSION ABATEMENT .2018 7 SCR System Configuration and Vessel Integration 21 7.1 General 21 7.3 Compatibility with the Engine 22 7.5 Redundancy 22 7.7 Essential Services . 22 7.9 Inclinations 22 7.11 I
24、nspection and Maintenance 22 9 SCR System Equipment . 23 9.1 Pumps/Fans 23 9.3 Exhaust Heaters 23 9.5 SCR Reductant System . 23 9.7 SCR Reaction Chamber 23 9.9 Pneumatic Systems . 24 9.11 Electrical System . 24 11 SCR System Piping 25 11.1 Exhaust Gas Piping Systems 25 11.3 Reductant Piping Systems
25、Urea Solution . 26 13 Control, Monitoring, and Safety Systems . 28 13.1 General 28 13.3 Control and Monitoring System . 28 13.5 Safety Shutdown System 29 15 FMEA Integration Test 29 17 Surveys During Construction 29 17.1 General 29 17.3 Surveys at Manufacturers Facility . 30 17.5 Surveys During Inst
26、allation 30 17.7 Surveys During Trials 30 TABLE 1 Monitoring and Safety System Functions for SCR Systems 31 TABLE 2 Certification of SCR Systems at the Manufacturers Facility . 32 SECTION 4 EGC Exhaust Gas Recirculation Systems 33 1 General . 33 3 Plans and Data to be Submitted . 33 5 EGR Operation
27、and Maintenance Manuals 34 7 EGR System Configuration and Vessel Integration 34 7.1 General 34 7.3 Compatibility with the Engine 34 7.5 Redundancy 35 7.7 Essential Services . 35 7.9 Prevention of Flooding 35 7.11 Inclinations 35 9 EGR System Equipment . 35 9.1 Pumps/Blowers . 35 9.3 Heat Exchangers/
28、EGR Exhaust Gas Coolers . 36 ABSGUIDE FOR EXHAUST EMISSION ABATEMENT .2018 v 9.5 Chemical Treatment System . 36 9.7 Electrical System . 36 11 EGR System Piping 36 11.1 Exhaust Gas Piping Systems 36 11.3 Washwater Piping 37 11.5 Chemical Treatment Piping Systems . 38 11.7 Residue System. 40 13 Contro
29、l, Alarm, and Monitoring System 41 13.1 General 41 13.3 Control and Monitoring System . 41 13.5 Safety Shutdown System . 42 15 FMEA Integration Test 42 17 Surveys During Construction 42 17.1 General 42 17.3 Surveys at Manufacturers Facility . 42 17.5 Surveys During Installation 42 17.7 Surveys Durin
30、g Trials 43 TABLE 1 Monitoring and Safety System Functions for EGR Systems 43 TABLE 2 Certification of EGR Equipment and Systems at the Manufacturers Facility 44 SECTION 5 Exhaust Emission Monitoring Systems . 45 1 General . 45 3 Plans and Data to be Submitted . 45 5 EEMS Operation and Maintenance M
31、anuals 46 7 Exhaust Emission Monitoring Systems . 46 7.1 General 46 7.3 Inclinations . 46 9 EEMS Equipment 46 9.1 General 46 9.3 Sample Probes for Gaseous Emissions 46 9.5 Sample Handling . 47 9.7 Analyzer Specifications and Calibration . 47 9.9 Data Recording and Processing Device 47 9.11 Pneumatic
32、 Systems . 47 11 Monitoring System 48 11.1 General 48 11.3 Monitoring System . 48 13 Surveys During Construction 48 13.1 General 48 13.3 Surveys During Installation 48 13.5 Surveys During Trials 48 TABLE 1 Monitoring System Functions for EEMS Systems 49 vi ABSGUIDE FOR EXHAUST EMISSION ABATEMENT .20
33、18 SECTION 6 Surveys After Construction and Maintenance of Class 50 1 General . 50 1.1 Definitions 50 1.3 Modifications . 50 3 Survey Intervals 50 3.1 Annual Survey . 50 3.3 Special Periodical Survey 50 3.5 Continuous Survey Program . 51 3.7 Survey Based upon Preventative Maintenance Techniques . 51
34、 5 Surveys . 51 5.1 Annual Surveys . 51 5.3 Special Periodical Survey 53 7 Alternative Surveys . 54 ABSGUIDE FOR EXHAUST EMISSION ABATEMENT .2018 vii This Page Intentionally Left Blank Section 1: General SECTION 1 General 1 Scope and Application (2018) This Guide is to be applied to exhaust emission
35、 abatement systems fitted to ABS classed vessels and covers SOxscrubbers, SCR systems and EGR arrangements, together with Exhaust Emissions Monitoring Systems (EEMS) fitted in conjunction with the aforementioned emission abatement systems, or installed as an alternative Onboard NOxVerification Proce
36、dure in accordance with the Direct Measurement and Monitoring Method of the NOxTechnical Code. The optional exhaust emission abatement notations detailed under 1/9.3 through 1/9.9 will be assigned to a vessel upon request and where the exhaust emission abatement system has been verified to be in com
37、pliance with the applicable requirements of this Guide. Where a notation has not been requested, the exhaust emission abatement system is to be verified to be in compliance with the minimum requirements prescribed under 1/9.11 of this Guide. This is applicable to new construction and existing vessel
38、 modifications. 3 General (2018) This Guide focuses on the safety and reliability aspects of exhaust emission abatement equipment that fall within the scope of traditional Classification requirements and is to be applied to those Exhaust Gas Cleaning (EGC) systems covering SOxscrubbers, SCR systems,
39、 and EGR arrangements. SOxscrubbers and SCR units are generally installed downstream of the Fuel Oil Combustion Unit (FOCU) and are considered secondary aftertreatment systems. Compatibility of these EGC systems with the FOCU is to be verified as part of the approval process, preferably in considera
40、tion of the FOCU equipment manufacturer. A Low Pressure SCR system is one where the SCR reaction chamber and catalysts are integrated after the exhaust gases have passed through the turbocharger. In the case of EGR systems, or SCR systems fitted before an engine turbocharging system (High Pressure S
41、CR), these are considered primary exhaust emission reduction techniques forming part of the total engine design and as such are to be integrated by the engine designer or a third party under the authorization of the engine designer. Those applicable requirements for EGR and SCR systems contained wit
42、hin this Guide are supplementary to, and to be applied in association with, the requirements for internal combustion engines under Section 4-2-1 of the ABS Rules for Building and Classing Steel Vessels (Steel Vessel Rules). This Guide focuses on those systems designed to reduce gaseous exhaust emiss
43、ions species legislated through the International Maritime Organization (IMO) Annex VI Regulations 13 and 14 for nitrogen oxide (NOx) emissions from diesel engines and sulfur oxide (SOx) emissions from all fuel burning equipment on board. Acceptance of a SOxexhaust gas cleaning system under MARPOL A
44、nnex VI, as an alternative means of compliance through Regulation 4, is subject to approval by the flag Administration of the vessel. The regulatory requirements covering the air emissions performance, testing, statutory certification, and statutory survey aspects are regulated through Annex VI in a
45、ssociation with any other applicable IMO Guidelines. At the time of issuance of this Guide, the applicable Guidelines for Selective Catalytic Reduction are IMO Resolution MEPC.291(71) 2017 Guidelines Addressing Additional Aspects to the NOxTechnical Code 2008 With Regard to Particular Requirements R
46、elated to Marine Diesel Engines Fitted With Selective Catalytic Reduction (SCR) Systems, adopted 7 July 2017. The applicable Guidelines for SOxexhaust gas cleaning systems are IMO Resolution MEPC.259(68) 2015 Guidelines for Exhaust Gas Cleaning Systems, adopted 15 May 2015. This Guide is intended to
47、 cover only the Classification aspects, and the statutory approval may be made by ABS as a separate parallel process in the capacity of a Recognized Organization (RO) for the vast majority of flag Administrations, when authorized by the flag. ABSGUIDE FOR EXHAUST EMISSION ABATEMENT .2018 1 Section 1
48、 General Individual flag Administrations may have in place additional requirements pertaining to the operation of EGC systems for vessels operating in their territorial waters, in particular with respect to those systems producing a washwater discharge associated with the exhaust gas cleaning proces
49、s. These requirements may necessitate additional vessel features, performance standards, equipment, reporting and record keeping, or operational practices that are not covered by the IMO regulations or this Guide. Accordingly, any party selecting an exhaust emission abatement system for a particular vessel is encouraged to verify the need for any additional or specific arrangements to meet the requirements of the vessel flag Administration, coastal state or port Authorities. 5 Objectives (2018) The objective of this Guide is to provide criteria for the design, co
