Chementator
Magnetic-shape-memory alloy offers alternative to traditional actuators
A novel nickel-manganese-gallium alloy, introduced by Goodfellow Corp. (Oakdale, Pa.; www.goodfellowusa.com), elongates in a magnetic field, allowing the conversion of magnetic field energy into kinetic energy. The material offers an alternative to conventional actuators, and could find other uses in…
A comprehensive zeolite database
A team led by Rice University (Houston; www.rice.edu) researcher Michael Deem has assembled a database of 2.6 million possible unique zeolites — porous silicate minerals often used as catalysts or molecular sieves. The database of potential structures could inform efforts…
June Chementator Briefs
Underground pipes A hand-held device for locating buried pipe will be commercialized by Sensit Technologies (Valparaiso, Ind.; www.gasleaksensors.com) under license from Gas Technology Institute (GTI, Des Plaines, Ill.; gastechnology.org.). GTI says the technology is expected to save industry millions…
CO2-capture technologies move ahead
Scaleup is set for two technologies that facilitate the capture of carbon dioxide from fluegas by substituting oxygen for combustion air. Oxycombustion, as it is called, results in a much smaller fluegas stream, containing up to 90% CO2; part of…
Lightweight diamond aerogel
Researchers at Lawrence Livermore National Laboratory (LLNL; Livermore, Calif.; www.llnl.gov) have created a nanocrystalline diamond aerogel. The new aerogel was produced by compressing a standard carbon-based aerogel precursor in a laser-heated diamond anvil cell, which consists of two opposing diamonds.…
Rubber manufacturing process allows in-mold curing
Along with an innovative elastomeric compound, scientists at Federal Mogul Corp. (Southfield, Mich; www.federalmogul.com) have developed a rubber manufacturing process that eliminates the need for curing in a batch oven after molding. The proprietary compound, known as K16, is intended…
A platinum-free fuel-cell catalyst
A research team from Los Alamos National Laboratory (Los Alamos, N.M.; www.lanl.gov) has developed a novel catalyst for the cathode of a fuel cell that avoids using expensive ($1,800/oz.) platinum metal. The cathode catalyst is on based carbon, partially derived…
Improved solvent extraction for nuclear-waste-contaminated water
Japan Atomic Energy Agency (JAEA; Ibaraki, www.jaea.go.jp) has enhanced the efficiency of a solvent-extraction process to separate organic solvents from water contaminated by radioactive waste. JAEA was able to reduce the toluene concentration from 5,000 parts per million (ppm) to…
Biodegradation system for VOCs poised for expansion
A system that utilizes existing biological wastewater-treatment facilities for destruction of biodegradable volatile organic compounds (VOCs) and other organic hazardous air pollutants (HAPs) has been demonstrated at three U.S. petroleum-refining and chemical facilities, and the developer has plans to extend…
Low-cost process for bioethanol fuel demonstrated in Japan
Mitsubishi Heavy Industries Ltd. (MHI; Tokyo, www.mhi.co.jp) says it has established technology to produce bioethanol for automobile use by using soft-cellulose, such as wheat straw and rice straw, as raw materials. MHI estimates the fuel cost for a full-scale production…