Céramiques Techniques Industrielles (CTI) products

CTI offers its customers the widest range of membranes combining cut-offs ranging from nano to micro-filtration and conduits with hydraulic diameters between 2.2 and 6 mm.  This wide range of membranes, linked to optimised module designs, enables our customers to develop efficient and sustainable filtration processes and equipment for many applications.

Our research priorities seek to purify gases (by separation), but also to purify them by associating a processing/reaction step. 1-Purification-separation - The applications of our developments include: The purification of hydrogen H2, which has applications in many fields: downstream purification of Water Gas Shift reactions, fuel cell power supply, petrochemical and chemical syntheses: ammonia, methanol...industries: glass, electronics, food, metallurgical, space... The separation of CO2 from gas mixtures, which has major economic and ecological challenges, particularly in the treatment of fumes from coal-fired plants, the most important future energy resource in many countries. The separation of water from organic solvents by gas permeation or pervaporation technologies.

The product of six years research in collaboration with IFP (French Petroleum Institute), this patented filter marketed by CTI since 2006 is based on very different manufacturing technology and processes from those used in the filters previously available on the market.

In response to the specific high temperature industrial gas dedusting requirements (to recover energy from exhaust gases or allow downstream processing - DeNOx, absorption... - fumes requiring high temperature), CTI has developed a filter module based on ceramic membranes, which are especially suited to this application. Indeed, CTI`s ceramic filters withstand up to 750°C and also provide a much better physical barrier than the sleeve filters previously used widely in the market and that require gas pre-cooling. Porous ceramic candles are arranged within a housing according to a honeycomb architecture. The hot gases enter from the outside of the candles and cross the finely calibrated porous walls and are then evacuated. The particles to be filtered bind to the ceramic membrane to form the `cake` which is discharged automatically by compressed air (`pulse jet` unclogging).

The Verneuil process involves very high temperatures (>2000°C), so it is necessary to ensure good thermal insulation. CTI produces all refractory components providing this function: