Topsoe's competencies within sulphuric acid production and treatment of sulphurous gasses is based on long-term experience - an experience which is continuously enhanced by research and development of new catalysts and technologies.Topsoe's extensive research and development and vast industrial experience enables us to offer a state-of-the-art portfolio of processes and catalysts for sulphuric acid production and treatment of sulphurous gasses . Read more about the research behind our catalysts and technologies: Sulphuric acid catalystsWSA - catalytic desulphurisation