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  • CARBON MONOXIDE AND SYNGAS PIPELINE SYSTEMS

    AIGA 034/06

    GLOBALLY HARMONISED DOCUMENT

    Asia Industrial Gases Association

    3 HarbourFront Place, #09-04 HarbourFront Tower 2, Singapore 099254 Tel : +65 6276 0160 Fax : +65 6274 9379

    Internet : http://www.asiaiga.org

  • Reproduced with permission from the European Industrial Gases Association. All rights reserved.

    ASIA INDUSTRIAL GASES ASSOCIATION 3 HarbourFront Place, #09-04 HarbourFront Place, Singapore 099254

    Tel: +65 62760160 Fax: +65 62749379 Internet: http://www.asiaiga.org

    AIGA 034/06 GLOBALLY HARMONISED DOCUMENT

    CARBON MONOXIDE AND SYNGAS PIPELINE SYSTEMS

    KEYWORDS

    CARBON MONOXIDE

    CORROSION

    CLEANING

    CONTRACTOR

    ENVIRONMENT

    FIRE

    HAZARD

    HYDROGEN

    INSPECTION

    LEGISLATION

    METERING

    PIPING SYSTEM

    PREVENTION

    SAFETY

    TRANSPORTATION

    VALVE

    WELDING

    WORK PERMIT

    Disclaimer

    All publications of AIGA or bearing AIGAs name contain information, including Codes of Practice, safety procedures and other technical information that were obtained from sources believed by AIGA to be reliable and/ or based on technical information and experience currently available from members of AIGA and others at the date of the publication. As such, we do not make any representation or warranty nor accept any liability as to the accuracy, completeness or correctness of the information contained in these publications. While AIGA recommends that its members refer to or use its publications, such reference to or use thereof by its members or third parties is purely voluntary and not binding. AIGA or its members make no guarantee of the results and assume no liability or responsibility in connection with the reference to or use of information or suggestions contained in AIGAs publications. AIGA has no control whatsoever as regards, performance or non performance, misinterpretation, proper or improper use of any information or suggestions contained in AIGAs publications by any person or entity (including AIGA members) and AIGA expressly disclaims any liability in connection thereto. AIGAs publications are subject to periodic review and users are cautioned to obtain the latest edition.

  • AIGA 034/06

    Acknowledgement

    This document is adopted from the European Industrial Gases Association document IGC 120/04 E Carbon monoxide and Syngas pipeline systems. Acknowledgement and thanks are hereby given to EIGA for permission granted for the use of their document.

  • AIGA 034/06

    Table of Contents

    1 Introduction ......................................................................................................................................1

    2 Scope and purpose..........................................................................................................................1

    3 Definitions ........................................................................................................................................2

    4 Design philosophy............................................................................................................................5 4.1 General criteria .........................................................................................................................5 4.2 Properties of syngas.................................................................................................................6

    4.2.1 Flammability ......................................................................................................................6 4.2.2 Toxicity ..............................................................................................................................7 4.2.3 Brittle fracture and environmental damage mechanisms..................................................7

    4.3 Metallic materials ......................................................................................................................8 4.3.1 Generalities .......................................................................................................................8 4.3.2 Carbon steels ....................................................................................................................9 4.3.3 Microalloyed steels..........................................................................................................11 4.3.4 Carbon-Molybdenum (C-Mo) and Carbon-Molybdenum-Chrome (C-Mo-Cr) low alloy steel 12 4.3.5 Stainless steels................................................................................................................13 4.3.6 Nickel alloys.....................................................................................................................13 4.3.7 Copper and cobalt alloys.................................................................................................13 4.3.8 Carbonyl formation ..........................................................................................................13

    4.4 Non metallic materials ............................................................................................................13 4.4.1 CO compatibility with non metallic material.....................................................................14 4.4.2 H2 compatibility with non metallic material .....................................................................14 4.4.3 Syngas.............................................................................................................................15

    4.5 Piping systems........................................................................................................................15 4.5.1 Underground piping systems...........................................................................................15 4.5.2 Above-ground piping systems.........................................................................................16 4.5.3 Pipeline markers..............................................................................................................16 4.5.4 Corrosion protection ........................................................................................................16 4.5.5 Leakage surveys .............................................................................................................18

    4.6 Hazard analysis and risk assessment ....................................................................................18 4.6.1 General............................................................................................................................18 4.6.2 Identification of the hazards ............................................................................................19 4.6.3 Mitigating measures ........................................................................................................19 4.6.4 Typical event scenario.....................................................................................................19 4.6.5 Consequences of these events .......................................................................................19 4.6.6 Selection of simulation model parameters ......................................................................19 4.6.7 Criteria for the feared event.............................................................................................20 4.6.8 Definition of the zone to be studied around the pipe.......................................................21 4.6.9 Risk criteria......................................................................................................................21

    4.7 Siting of stations .....................................................................................................................21 4.7.1 General............................................................................................................................21 4.7.2 Release of CO/Syngas during maintenance ...................................................................21 4.7.3 Case of CO/Syngas leaks ...............................................................................................22

    5 Piping, valves and equipment........................................................................................................22 5.1 General criteria .......................................................................................................................22 5.2 Material selection criteria........................................................................................................22 5.3 Electrical hazardous area requirements.................................................................................22 5.4 Piping......................................................................................................................................23

    5.4.1 Venting and flare destruction systems ............................................................................23 5.4.2 Flanges and gaskets .......................................................................................................23 5.4.3 Threaded connections.....................................................................................................24 5.4.4 Instrument tubing.............................................................................................................24

    5.5 Valves ................