Chementator
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.…
‘Cool’ amine process improves H2S absorption
A novel process for removing hydrogen sulfide from natural gas has been started up at Sinopec Zhongyuan Petroleum Co.’s Puguang natural gas plant in China’s Sichuan Province. The plant, Asia’s largest sour natural-gas treatment facility, can process up to 36-million…
No oxygen is needed for this gasifier
A pilot plant for a process that uses a fluidized bed of sand to gasify coal and other carbonaceous materials will be started up this summer in Kanab, Utah by Viresco Energy LLC (Riverside, Calif.; www.virescoenergy.com). Initially, the plant will…
Elevance biorefinery on track for late-2011 commissioning
A manufacturing facility for bio-based intermediate and specialty chemicals under construction by Elevance Renewable Sciences Inc. (Bolingbrook, Ill.; www.elevance.com) is on track to begin generating products late this year, according to the company. Located in Indonesia, the facility is currently…
A streamlined pre-treatment process for algae biodiesel
A pulsed-electric-field (PEF) pre-treatment technology to facilitate extraction of oils from algae cells was introduced recently by Diversified Technologies Inc. (Bedford, Mass.; www.divtecs.com). Algae have drawn considerable interest as a renewable source of biofuels, but the costs of algae-derived fuels…
Nippon Ketjen introduces new catalysts for residue hydrotreating
Nippon Ketjen Co. (Tokyo; www.nippon-ketjen.co.jp) has developed two new catalysts with enhanced properties for petroleum residue hydrotreating. KFR 15 removes metallic impurities, and KFR 93 removes sulfur from residues and contributes to the efficiency of residue hydrotreating units. For the…
Nanoparticle alloy could be an alternative to palladium
Kyoto University (Kyoto, www.kuchem.kyoto-u.ac.jp) professor Hiroshi Kitagawa has developed technology for synthesizing nanoscale particles of alloyed metals that could lead to alternatives to industrially important, but expensive, metals such as Pd and rare earth metals. Kitagawa’s group has used the…
Hybrid inorganic-organic membrane has enhanced stability
A silica-based amorphous material in which silicon atoms are linked to organic groups, as well as to oxygen, creates a pore network that tolerates aggressive chemical environments more effectively than conventional polymeric or ceramic membranes. Licensed by membrane manufacturer Pervatech…
Recovering rare earth metals from used light bulbs
Up to now, used energy-saving light bulbs have been processed by recycling firms that recover the various components, such as glass, metal, plastics and mercury. However, the remaining luminescent powders, which contain high concentrations of rare earth elements (REEs), are…