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Scientific and technological services and research and design relating thereto in the field of purification of refinery hydrocarbon streams, industrial gas purification and processing; provision of technical information and consultancy services relating to use of absorbents in industrial gas and refinery hydrocarbon purification and processing; design and development of software relating to plant monitoring and optimisation services in the field of purification of refinery hydrocarbon streams, industrial gas purification and processing; testing, analysis and monitoring services relating to use of absorbents in purification of refinery hydrocarbon streams, industrial gas purification and processing; data modelling services and technical reporting in the field of purification of refinery hydrocarbon streams, industrial gas purification and processing; web portal design and hosting for use in the field of purification of refinery hydrocarbon streams, industrial gas purification and processing; portal-as-a-service for use in the field of industrial gas purification and processing