The production rate (per amount of catalyst) for generating liquid hydrocarbons from syngas by the Fischer-Tropsch (F-T) process, using a slurry reactor or tubular reactor, is generally limited to about 30% of the maximum rate. The restraining factor is heat…
Petroleum-derived ethylene normally contains traces of acetylene, which interferes with the conversion of ethylene into polyethylene (PE). Because it is difficult to separate it, the acetylene is selectively hydrogenated to ethylene — without subsequent hydrogenation to ethane — using a…
Ajinomoto Co., Inc. (www.ajinomoto.com) and Bridgestone Corp. (Both Tokyo, Japan; www.bridgestone.com) have jointly developed a bio-based, high- cis-polyisoprene synthetic rubber. The two companies began an R&D cooperation in June 2011 to combine their know-how — Ajinomoto’s state-of-the-art fermentation technologies for…
A new particle-size measurement technique has been developed and used to evaluate filter retention efficiency for particles with an average diameter of 12 nm by C.T. Associates Inc. (Eden Prairie, Minn.; www.ctassociatesinc.com) and W.L. Gore and Associates (Newark, Del.; www.gore.com).…
A new electrolysis cell At Achema 2012, ThyssenKrupp Uhde GmbH (Dortmund, Germany; www.uhde.eu) introduced a new generation of its single-element electrolysis cell, Generation 6, which offers improved energy consumption and increased active-membrane area. These improvements are due to an…
A group of scientists from Fudan University (Shanghai, China; www.fudan.ac.cn) China, has reported what it claims to be the first example of artificial single-molecular water channels that can transport water across lipid membranes. Transmembrane water transport — through water channel…
In the development process for coal-bed methane, water is produced from wells. It is high-salinity water, with total dissolved solids (TDS) generally at least 1,000 mg/L. The main concern with coal-bed methane co-produced water is the amount of Na+ and…
A consortium of companies — Laricina Energy Ltd., Nexen Inc., Suncor Energy Inc. and Harris Corp. — has completed its initial-phase testing of the Enhanced Solvent Extraction Incorporating Electromagnetic Heating (ESEIEH) project at Suncors Steepbank mine facility north of Fort…
A recently launched, polymer-coated, fumed silica additive improves the performance of structural adhesives — those designed to bear loads. The new additive is capable of reducing the adhesive’s application viscosity, while simultaneously improving its ability to maintain a bead profile…
There might be as many categories of catalysts as there are chemical processing applications. And, no matter what the specialty or application, most catalyst producers are in a constant state of research and development in order to meet the demands…