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Displaying 201 - 220 of 938 stories.
January 1, 2013
Plans are underway to field-test a process that removes more than 90 % of the carbon dioxide from power-plant flue gas, while reducing both the energy input and operating costs by 50 % compared to conventional amine-based CO2-scrubbing technology. The so-called carbonate-looping process has undergone four years of testing in a 1 MWth pilot plant at the Technical University of Darmstadt (Germany...
http://www.che.com/chementator/Scale-up-planned-for-a-new-CO2-capture-process_10066.html
January 1, 2013
A small-scale ceramic membrane reactor to convert natural gas to transportable liquids in a single step is being developed by Ceramatec, Inc. (Salt Lake City, Utah; www.ceramatec.com) under a $1.7-million grant from the U.S. Dept. of Energy’s Advanced Research Project Agency (ARPA, Washington, D.C.; www.doe.gov). The goal is to monetize the...
http://www.che.com/chementator/Membrane-reactor-may-reduce-wastage-of-natural-gas_10067.html
January 1, 2013
The research group of Masahiro Murakami at Kyoto University (Kyoto, Japan; www.sbchem.kyoto-u.ac.jp/murakami-lab) have synthesized a promising pharmaceutical precursor using only sunlight (as energy source) and CO2 (as co-reagent). The solar-driven process involves two consecutive reactions (diagram): first, light transforms an alpha-methylamino ketone into an energized, cyclic...
http://www.che.com/chementator/Using-sunlight-to-incorporate-CO2-into-alpha-amino-ketones_10068.html
January 1, 2013
Cationic polymers have been used in the petroleum industry as shale-control agents, demulsifiers, blocking agents, and filtrate reducers for drilling fluids, but process complexity and high cost have limited their application. Now researchers from Zhejiang Normal University (Jinhua; www.zjnu.edu.cn) and Shandong University (Jinhua, both China; www.sdu.edu.cn) have reported the preparation of a...
http://www.che.com/chementator/A-starch-based-cationic-polymer-for-oil-recovery_10074.html
January 1, 2013
A photocatalyst that reduces CO2 into carbon monoxide is being commercialized by Tokyo Chemical Industry Co. (Tokyo, Japan; www.tcichemicals.com/en/jp/index.html). Developed by Osamu Ishitani and his research group at Tokyo Institute of Technology (TiTech; Japan; www.chemistry.titech.ac.jp/~ishitani/index-jp.htm), the catalyst is a step towards artificial photosynthesis whereby CO2 can be converted into...
http://www.che.com/chementator/A-step-towards-artificial-photosynthesis_10076.html
January 1, 2013
A research group at Rice University (Houston; www.rice.edu) has developed a method for vaporizing water into steam using sunlight-illuminated nanoparticles, with only a small fraction of the energy heating the fluid. Sub-wavelength metal or carbon particles are intense absorbers of optical...
http://www.che.com/chementator/Nanoscale-particles-help-produce-steam_10077.html
January 1, 2013
Under an ARPA contract Gas Technology Institute (GTI, Des Plaines, Ill.; www.gastechnology.org) is developing a process to convert natural gas directly into methanol and hydrogen. The process is much simpler and more efficient than the...
http://www.che.com/chementator/This-reactor-will-produce-methanol-directly-from-methane_10078.html
January 1, 2013
An Indian team from the Institute of Minerals & Materials Technology (www.immt.res.in), and Utkal University (both Bhubaneswar, Orissa, India; www.utkal-university.org) has achieved significant improvement in the recovery of nickel from lateritic ore by using oxalic acid produced by the fungus Aspergillus niger supplemented with manganese. Prior to leaching, thermal pre-treatment (at 600°C for 5 h)...
http://www.che.com/chementator/Improved-bioleaching-for-nickel-recovery_10079.html
December 1, 2012
A process for manufacturing fine particles of titanium dioxide that exhibits a high level of photocatalytic activity has been developed by Showa Titanium Co., a subsidiary of Showa Denko K.K. (SDK, Tokyo; ww.sdk.co.jp). The product has been developed in collaboration with professor Bunsho Ohtani at Hokkaido University with support from the New Energy and Industrial Technology Development Organization...
http://www.che.com/chementator/A-new-photocatalyst-for-VOC-destruction_9968.html
December 1, 2012
  Rotary atomizer Engineers at Dedert Inc. (Homewood, Ill.; www.dedert.com) have developed a high-speed rotary atomizer for a spray-dryer system that features a motor with permanent rare-earth-metal magnetic bearings. The centrifugal rotary atomizer can achieve peripheral speeds 30 to 40% higher than traditional rotary atomizers. The Dedert technology allows users to atomize more viscous materials, as...
http://www.che.com/chementator/December-Chementator-Briefs_9970.html
December 1, 2012
Lately there has been much renewed interest in fermentative production of n-butanol from renewable biomass as an industrial solvent and liquid fuel superior to ethanol that could be used as a substitute for gasoline. An improved butanol production through the reinforcement of the direct butanol-forming route in Clostridium acetobutylicum has been reported by a Korean team, which includes scientists from...
http://www.che.com/chementator/A-boost-for-bio-butanol-production_9971.html
December 1, 2012
A demonstration plant for the production of acetic acid from the carbon dioxide in industrial offgases will be built at an operating plant of Petronas (Kuala Lumpur; www.petronas.com.my), Malaysia’s national oil company, under an agreement with LanzaTech (Roselle, Ill.; www.lanzatech.com), developer of the process. Scheduled for startup in late 2013, the plant will be similar in size to a...
http://www.che.com/chementator/Scaleup-for-a-microbial-process-that-produces-acetic-acid-from-offgases_9973.html
December 1, 2012
The volume of heavy, sour crude oil processed by North American refineries is steadily increasing, and along with it a commensurate demand for hydrogen to upgrade that oil. A steam-reforming process that would allow refiners to produce their own H2 from heavy oil and residuum is being developed by TDA Research, Inc. (Wheat Ridge, Colo.; www.tda.com). Currently, refiners make a lot of their own hydrogen by...
http://www.che.com/chementator/A-new-way-to-obtain-hydrogen-from-heavy-oil_9974.html
December 1, 2012
Newlight Technologies (Irvine, Calif.; www.newlight.com) has launched commercial production of a polyhydroxyalkanoate (PHA) thermoplastic made from air and greenhouse gases, such as methane, that can be manufactured less expensively than conventional petroleum-derived alternatives, using a novel high-efficiency biocatalyst and bioreactor system. While considerable effort has previously been directed toward...
http://www.che.com/chementator/Low-cost-production-of-PHA-from-air-and-greenhouse-gases_9975.html
December 1, 2012
The research groups of Hideo Hosono and Michikazu Hara at the Materials and Structures Laboratory, Tokyo Institute of Technology (TiTech; Yokohama, Japan; www.msl.titech.ac.jp) have developed a high-performance catalyst for the synthesis of ammonia. In the laboratory, the catalyst is found to be an order of magnitude more efficient than commercial ruthenium-based catalysts because it cuts the energy...
http://www.che.com/chementator/A-highly-active-catalyst-for-making-NH3_9976.html
December 1, 2012
Meanwhile, professor Kazuhito Hashimoto at the University of Tokyo (Japan; www.light.t.u-tokyo.ac.jp) has developed new photocatalyst materials based on copper-titanium oxide, which exhibits superior antiviral effectiveness and enhanced antibacterial properties compared to existing systems. Developed with support from NEDO...
http://www.che.com/chementator/A-photocatalyst-for-destroying-viruses_9978.html
December 1, 2012
Lithium producer Galaxy Resources Ltd. (Perth, Western Australia; www.galaxylithium.com) says that lithium carbonate product from its wholly owned Jiangsu Lithium Carbonate Plant has achieved battery grade quality using the company’s patented process (flowsheet). The Jiangsu plant is located in the Yangtze River International Chemical Industrial Park of the Zhangjiagang Free Trade Zone in...
http://www.che.com/chementator/A-patented-process-produces-battery-grade-lithium_9979.html
November 1, 2012
In the production of deionized (DI) water from river water, sand filters are commonly used to remove solid particles prior to the ion-exchange units. However, sand beds occupy a large space — as large as 3-m wide and over 5-m high — and need to operate with very low filtration speeds to ensure the output has a solids content of less than 1 mg/L (1 ppm) to prevent fouling of the ion-exchange...
http://www.che.com/chementator/This-filtration-system-saves-space-time-and-money_9889.html
November 1, 2012
A partnership between New Sky Energy (Boulder, Colo.; www.newskyenergy.com) and 212 Resources (Houston, Tex.; www.212resources.com) combines the two companies’ technologies to generate freshwater and usable inorganic chemicals from produced water in petroleum and natural-gas drilling operations.     212 Resources has developed a vapor compression distillation process that concentrates brine...
http://www.che.com/chementator/Two-technologies-combined-to-treat-oil-and-gas-wastewater_9890.html
November 1, 2012
Among the many different ways being investigated for making hydrogen “from water” is the so-called sulfur-iodine (S-I) cycle, which involves three chemical reactions whose net products are H2 and O2: the decomposition of sulfuric acid into SO2, H2O and O2; the decomposition of hydrogen iodide into H2 and I2; and the regeneration of H2SO4 and HI by the Bunsen reaction (I2 + SO2 + 2H2O → 2HI...
http://www.che.com/chementator/A-new-catalyst-enables-lower-temperature-H2-production-using-the-sulfur-iodine-cycle_9891.html
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