Section 4 Materials
Clasification Society 2024 - Version 9.40
Clasifications Register Rules and Regulations - Rules and Regulations for the Classification of Naval Ships, January 2023 - Volume 2 Machinery and Engineering Systems - Part 12 Emissions Abatement Plant - Chapter 1 Emissions Abatement Plant for Combustion Machinery - Section 4 Materials

Section 4 Materials

Parent topic: Chapter 1 Emissions Abatement Plant for Combustion Machinery

4.1 General

4.1.1 The materials used in the construction of the emissions abatement plant and any associated chemical and effluent storage tanks are to be manufactured and tested in accordance with the requirements of the Rules for the Manufacture, Testing and Certification of Materials.

4.1.2 Materials used in piping systems are to comply with Vol 2, Pt 7, Ch 1 Piping Design Requirements, Vol 2, Pt 7, Ch 2 Ship Piping Systems and Vol 2, Pt 7, Ch 3 Machinery Piping Systems as applicable.

4.1.3 Materials used for wet scrubbers are to be constructed of corrosion-resistant material which is suitable for the expected operating temperatures of the scrubber and for the properties of wash water and chemicals used in the process, see Vol 2, Pt 12, Ch 1, 3.3 Chemical substances 3.3.1.

4.1.4 Materials used for selective catalytic reduction reactors are to be constructed of corrosion-resistant material which is to be suitable for the expected operating temperatures as well as the corrosive properties of ammonia and other chemicals associated with the chemical conversion process where applicable, see Vol 2, Pt 12, Ch 1, 3.3 Chemical substances 3.3.1.

4.1.5 Materials used for the construction of tanks for chemical substances associated with emissions abatement plant are to be suitable at the temperature and pressure for the chemical substances to be carried in accordance with recognised standards. Where it is proposed to use corrosion-resistant tank lining or coating then such lining and coatings are to be confirmed as being suitable for the expected operating temperatures and corrosive properties of the chemicals to be carried within the tank.

4.1.6 Materials used for the construction of tanks for wash water and effluent are to be suitable for the expected corrosivity and temperature of wash water and effluent to be contained within such tanks. Where it is proposed to use corrosion-resistant tank lining or coating then such lining and coatings are to be confirmed as being suitable for the expected operating temperatures and corrosive properties of wash water and effluents.

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