Latest News: Technologies
This gasification process turns waste into syngas
Construction of a large-scale waste-to-energy plant will start in the middle of next year in Port Hedland, Western Australia, and operation is scheduled to commence in the second quarter of 2015. The plant will be built by the New Energy…
A new gas-engine cogeneration system
Last month, Mitsubishi Heavy Industries, Ltd. (MHI; www.mhi.co.jp) and Tokyo Gas Co. (both Tokyo, Japan; www.tokyo-gas.co.jop) began marketing a jointly developed 1,000-kW gas-engine cogeneration system. Based on the conventional 930-kW system, the new systems engine operates at a reduced speed…
December Chementator Briefs
Acetic acid from syngas A new process for the production of acetic acid claims to be more efficient and cost-effective than current technologies. Carbonylation of methanol has been the leading acetic acid technology for several decades, but BP plc…
Making biogas from waste with a low organic content
The effluent discharged by domestic industries in Japan amounts to approximately 11.1 billion ton/yr. Most of this waste is comprised of relatively low concentrations of organic matter. Today, most of this effluent is treated by aerobic biotreatment (activated sludge). However,…
Metabolic engineering makes plants produce more oils
A research team from the University of Western Australia (Perth; www.uwa.edu.au), led by professor Dongke Zhang, has pioneered the application of higher plants for new-generation biofuel production. Metabolic engineering of Arabidopsis thaliana — a small flowering plant native to Europe…
Optimization of a Steam Network
Petroleum refineries generate power from a number of sources, including cogeneration plants and steam networks. Generally, steam networks use turbines to improve operational reliability, specifically as drivers for rotating equipment. Due to increasing energy costs, it is essential to maximize…
New process for monoethylene glycol completes pilot stage
A new process for producing monoethylene glycol (MEG) from synthesis-gas-based feedstocks is nearing completion of extensive pilot plant operation, according to developers Eastman Chemical Co. (Kingsport, Tenn.; www.eastman.com) and Johnson Matthey Davy Technologies Ltd. (London, U.K.; www.davyprotech.com). The technology enables…
Improving extraction yields of Ni and Co from laterite
Low-grade nickel (less than 1.5 wt.%) laterite ores represent about 70% of global reserves but account for only 40% of nickel production. Increasing demand for nickel in recent years has created the need to process such ores. Atmospheric acid leaching…
First commercial-scale high-solids anaerobic digester in North America
Harvest Power (Waltham, Mass.; www.harvestpower.com) recently began operation of the first commercial-scale, high-solids anaerobic digester in North America. The facility produces biogas from food waste and yard waste in Richmond, B.C., Canada. “The anaerobic digester employs essentially the same biology…
Bacteria engineered to make gasoline
Short-chain hydrocarbons have been produced for the first time by microbial fermentation by a research team from the Dept. of Chemical and Biomolecular Engineering at the Korea Advanced Institute of Science and Technology (KAIST; Daejeon, South Korea, www.kaist.ac.kr), led by…