Company Filing History:
1 out of 215 
1 out of 235 Years Active: 1981-1982
Title: Pierre Grancher: Innovator in Industrial Gas Purification
Introduction
Pierre Grancher is a notable inventor based in Pau, France. He has made significant contributions to the field of industrial gas purification, holding 2 patents that showcase his innovative approaches to environmental challenges.
Latest Patents
Grancher's latest patents focus on a process for the purification of residual industrial gases. This process addresses gases containing small quantities of H₂S, SO₂, CS₂, COS, or possibly sulfur vapor, along with larger amounts of H₂O, CO₂, and N₂. The method involves a catalytic reduction that transforms sulfur compounds into H₂S, followed by washing with an aqueous amine solution. The gases are then burned and discarded into the atmosphere, while the amine solution is regenerated through heating. A key feature of this process is maintaining the gas temperature above the dew point of water, ensuring that most of the H₂O is expelled into the atmosphere.
Career Highlights
Throughout his career, Pierre Grancher has worked with prominent companies, including Société Nationale Elf Aquitaine, where he contributed to production processes. His work has been instrumental in advancing methods for managing industrial emissions.
Collaborations
Grancher has collaborated with notable colleagues such as Jacques Batteux and Claude Blanc, enhancing the development of innovative solutions in his field.
Conclusion
Pierre Grancher's contributions to industrial gas purification reflect his commitment to innovation and environmental sustainability. His patents demonstrate a forward-thinking approach to addressing industrial challenges.