Latest News: Technologies
A lower-energy approach to natural gas ‘sweetening’
A new method for removing hydrogen sulfide from natural gas at ambient temperatures could allow significant energy savings compared to the current technique and increase the range of H2S concentrations in natural gas that are economically viable to extract from…
New propylene and butadiene process could be utilized next year
By the end of this year, Asahi Kasei Chemicals Corp. (Tokyo; www.asahi-kasei.co.jp) plans to complete development on two processes that utilize excess C2 and C4 fractions for producing propylene and butadiene, and if all goes smoothly, implement them by March…
April Chementator briefs
Recycling copper Steinert Elektromagnetbau GmbH (Cologne, Germany; www.steinert.de) has recently installed its first XSS-F unit — said to be the worlds first inline system designed to extract copper from shredded ferrous scrap. Installed at a German recycling yard, the…
A low-energy, belt-based solid- liquid separation technology
Engineers at Algaeventure Systems (Marysville, Ohio; www.algaevs.com) have developed a system for separating liquids from solids and semisolids at very low energies. Originally targeted at harvesting and dewatering microalgae where the technology could remove a major cost barrier, the separation…
Supercritical CO2 Brayton-cycle system packs efficiency into small footprint
Electricity generation of 240 kW has been demonstrated in a Brayton-cycle system that uses supercritical carbon dioxide as the working fluid. Developed by researchers at Sandia National Laboratory (Albuquerque, N.M.; www.sandia.gov) and built by Barber Nichols Inc. (Arvada, Colo.; www.barber-nichols.com),…
New condenser design for Claus tail gas slashes refrigeration duty
Last month, at the AIChE Spring Meeting in Chicago, Henry Kister, director of Fractionation Technology at Fluor Corp. (Aliso Viejo, Calif.; www.fluor.com) presented a patent pending process (U.S. Patent Application WO/2011/016797) that promises to cut energy demand and capital costs…
A scaled up microreactor for mass production
M Technique Co. (M Tech; Osaka, Japan; www.m-technique.co.jp) has commercialized the Ulrea SS-300, a scaled up version of the Ulrea SS-11 — a forced thin-film microreactor. With a production capacity nearly ten times higher than its predecessor, the Ulrea SS-300…
Vegetable-oil-based chemicals plant soon to be fully operational
In spring of this year, Archer Daniels Midland Co. (ADM; Decatur, Ill.; www.adm.com) plans full operation of a chemical plant based on soybean and canola oils as renewable feedstock. Products of the plant will include refined glycerin, propylene glycol and…
Improved ethylene-oxide scrubber design can meet stringent regulations
Improvements in the design of ethylene oxide (EtO) scrubbers made by The Clean Air Group, Croll Reynolds Co. (Parsippany, N.J.; www.croll.com) have helped users meet increasingly stringent regulations for EtO emissions, as well as meet tower height restrictions. “Our designs…
Graphene improves the performance of water deionization
A research team from the University of South Australia (Adelaide; www.unisa.edu.au) and the East China Normal University (Shanghai; www.ecnu.edu.cn) has developed a capacitive deionization technology (CDI) that uses graphene-like nanoflakes as electrodes, instead of conventionally used activated carbon (AC) materials.…