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A new multiphase contactor promises to cut costs for carbon capture and more

By Gerald Ondrey |

Westec Environmental Solutions, LLC (WES; Chicago, Ill.; www.wes-worldwide.com) has developed a gas-liquid absorption technology that can dramatically enhance mass transfer in gas-liquid absorption, extraction and scrubbing systems. The patented WES Absorber operates co-currently and creates a micro-froth matrix that intensifies mass transfer. Co-current operation allows the column to operate at gas velocities “far in excess” to those tolerated by conventional counter-current gas-liquid absorbers, without significant solvent losses through entrainment and flooding, says the firm. In laboratory trials, the WES Absorber has achieved 10 theoretical mass-transfer stages in a single, 0.5-m high stage. The absorber requires less than one-fifth the mass-transfer height than conventional absorbtion columns with proprietary structured packing, for the same level of CO2 absorption. Consequently, in fluegas applications, the WES Absorber will reduce total absorber height by approximately 50% compared to conventional or packed or tray absorbers, says the firm. Last month, WES finalized a joint-development agreement with Process Group Pty Ltd. (Melbourne, Australia; www.processgroup.com.au) to further develop the technology. The first…
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PDH catalyst Last month, Clariant's Catalyst business (Munich, Germany; www.clariant.com) launched its latest propane dehydrogenation (PDH) catalyst, Catofin 311, which…

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