Biofiltration of xylene emissions: bioreactor response to variations in the pollutant inlet concentration and gas flow rate

Air purification from a mixture VOCs in the pilot-scale trickle-bed bioreactor (TBB)

“…Therefore, practically the total production of these substances is localized in refinery and petrochemical industry. The industrial emission of xylenes into the atmosphere is estimated at about 34 000 Mg per year in the USA, 7 300 Mg per year in Canada, out of which 58% was connected with the use of solvents and 39% with car exploitation [6]. The industrial emission of xylenes in Japan is estimated at about 48000 Mg per year [7].…”

Selective Cracking of Durene to Para-Dimethyl Benzene over ZSM-5 Zeolite

“…P-xylenes is an important organic compound that can be used as a solvent in printing, rubber, synthetic fiber, plastic, insecticide, pesticides and leather industries and as a cleaner and a paint thinner [1][2]. In the industry, p-xylene is used as a source for large scale manufacture of the chemical and pharmaceutical intermediate, terephthalic acid, which is further used in the production of polyester resin and fibers.…”

Biofilter for treating toluene vapors: Performance evaluation and microbial counts behavior

“…Compared to the conventional technology, the various advantages of biofilter are low capital investment and operating costs (Elmrini et al 2004a), energy efficiency and no secondary pollutants produced. Biofilter is mostly used in air streams treating, particularly organic vapors, with high flow rate and low concentrations of pollutants (Rahul et al 2013a;Rene et al 2009) less than 1000 ppm (Delhomenie et al 2003).…”