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Archives :: Chementator :: Catalysis

Displaying 1 - 20 of 59 stories.
April 1, 2014
Shinji Inagaki and colleagues at Toyota Central R&D Labs, Inc. (Nagakute City, Japan; www.tytlabs.com) have synthesized an entirely new immobilization support that can be used to recycle and reuse metalo-organic-complex catalysts, which are widely used for the synthesis of pharmaceuticals and fine chemicals. Already in 1999, the research group had synthesized the world’s first mesoporous...
http://www.che.com/chementator/catalysis/A-solid-chelating-ligand-for-making-heterogeneous-catalysts_11595.html
February 1, 2014
A new water-gas shift catalyst has undergone 1,000 h of successful operation in a demonstration carried out by the New Energy and Industrial Technology Development Organization (NEDO, Kawasaki; www.nedo.go.jp) and Hitachi, Ltd. (Tokyo, both Japan; www.hitachi.com). The tests were performed at the Eagle pilot plant ( Chem...
http://www.che.com/chementator/catalysis/A-new-low-temperature-shift-catalyst-passes-longterm-testing_11406.html
February 1, 2014
Converting CO2 into methane is a way to mimic the natural carbon cycle and close the energy cycle by producing synthetic hydrocarbons (see, for example, CO2 Utilization, Chem. Eng., July 2013, pp. 16–19). However, the Sabatier reaction (CO2 + 4H2 —> 2H2O + CH4) is a complex surface reaction that is kinetically limited, says Andreas Borgschulte, a group leader at the Laboratory for Hydrogen...
http://www.che.com/chementator/catalysis/A-sorption-enhanced-catalyst-improves-CO2-methanation_11408.html
January 1, 2014
A metal-free catalyst system involving ionic liquids and doped carbon nanofibers can efficiently reduce carbon dioxide to carbon monoxide, offering a cost-effective electrochemical route from CO2 to synthesis gas (syngas), and further, to liquid transportation fuels. A research group at the University of Illinois at Chicago (UIC; www.uic.edu), led by Amin Salehi-Khojin, demonstrated that graphite-like...
http://www.che.com/chementator/catalysis/Novel-co-catalyst-system-could-enable-CO2-to-syngas-processes_11354.html
January 1, 2014
A stabilized palladium catalyst system that can be used for making materials for organic solar cells and pharmaceuticals has been developed by the research groups of of Yoichi Yamada at Riken (Wako city; www.riken.jp) and Shigenori Fujikawa at the International Institute for Carbon-Neutral Energy Research (I2CNER), Kyushu University (Fukuoka City, both Japan; i2cner.kyushu-u.ac.jp). The catalyst features...
http://www.che.com/chementator/catalysis/This-catalyst-system-requires-significantly-less-palladium_11359.html
November 1, 2013
Daiki Axis Co. (Matsuyama City, Japan; www.daiki-axis.com) has developed a new solid catalyst for biodiesel fuel production under the support of New Energy and Industrial Technology Development Organization (NEDO) under the authority of the Ministry of Economy, Trade and Industry (METI). The company’s new catalyst, tradenamed DX-G1, acts as a bi-functional catalyst — simultaneously as both acid...
http://www.che.com/chementator/catalysis/A-new-catalyst-for-low-cost-production-of-biodiesel-fuel_11131.html
October 1, 2013
The research group of Yasuhiro Uozumi and Yoichi Yamada at Riken (Saitama, Japan; www.riken.jp), in collaboration with professor Audrey Moores of McGill University (Montreal, Que.), has developed a highly efficient catalyst for performing hydrogenation reactions, which are important in the refining of petroleum and oils and fats. Compared with conventional catalysts, which use precious metals costing...
http://www.che.com/chementator/catalysis/An-inexpensive-iron-catalyst-for-efficient-hydrogenation-reactions_11025.html
October 1, 2013
Fermenting sugar is at the heart of many bio-based chemical and biofuel processes, but obtaining sugars from cellulosic biomass at low cost is an ongoing challenge. A new process using a reusable solid catalyst is capable of breaking down a wide range of waste biomass into fermentable sugars at costs lower than deriving sugar from corn or sugarcane. Midori Renewables (Cambridge, Mass....
http://www.che.com/chementator/catalysis/Solid-catalyst-method-for-breaking-down-cellulosic-biomass-cuts-costs_11027.html
October 1, 2013
When coal-derived synthesis gas (syngas) is converted to liquid fuel by the Fischer-Tropsch (F-T) process, the initial product is mostly straight-chain waxy paraffins that can be upgraded by hydroprocessing to obtain diesel fuel and naphtha, which are used for gasoline blending. Only about 16% of the F-T plant output falls directly into...
http://www.che.com/chementator/catalysis/A-new-catalyst-promises-to-cut-the-cost-of-the-Fischer-Tropsch-process_11029.html
October 1, 2013
A highly active nickel catalyst for performing cross-coupling reactions has been developed by the research group of professor Shu Kobayashi at the University of Tokyo (Japan; www.chem.s.u-tokyo.ac.jp). The researchers were able to immobilize nickel...
http://www.che.com/chementator/catalysis/Cross-coupling-catalyst_11031.html
September 1, 2013
The selective, one-step biocatalytic hydroxylation of benzene to phenol — at ambient pressure and temperature — has been demonstrated by professors Yoshihito Watanabe and Osamu Shoji at Nagoya University (Nagoya, Japan; bioinorg.chem.nagoya-u.ac.jp). The achievement was made using a wild-type of Cytochrome P450BM3 with the simple addition of perfluorinated compounds (PFCs) as decoy molecules...
http://www.che.com/chementator/catalysis/A-direct-one-step-enzymatic-hydroxylation-of-benzene-to-phenol_10908.html
September 1, 2013
Many investigations are ongoing to achieve ammonia synthesis at energy-saving mild conditions instead of the high temperatures and pressures (500°C, 300 atm) required by the commonly used Haber-Bosch process, which consumes more than 1% of the world’s power production. Now, Zhamin Hou, Takanori Shima and...
http://www.che.com/chementator/catalysis/A-step-toward-ammonia-production-at-ambient-conditions_10913.html
June 1, 2013
What is said to be the world’s first commercial alkylation plant to use a solid acid catalyst is scheduled for startup early next year by Shandong Wonfull Petrochemical Group Co. (Zibo, China). The plant, which will produce 100,000 ton/yr of alkylate, will use a process called AlkyClean, developed by CB&Is Technology Group (The Woodlands, Tex.; www.cbi.com), Albemarle Corp. (Orangeburg, S.C....
http://www.che.com/chementator/catalysis/A-solid-acid-catalyst-alkylation-process-will-be-commercialized_10557.html
June 1, 2013
An improved H2SO4 process developed by CB&I (The Woodlands, Tex.; www.cbi.com) has now been licensed to three companies, all in China. The first licensee was Ningbo Haiyue New Material Co. Ltd., which is building a 600,000-m.t./yr plant near Ningbo City, Zhejiang Province (CE, December 2011, p. 11). The other two plants, each of 200,000 m.t./yr, are being built by undisclosed companies in Shandong and...
http://www.che.com/chementator/catalysis/An-improved-H2SO4-alkylation-process-gains-acceptance_10564.html
June 1, 2013
China’s largest private chemical EPC (engineering, procurement, construction) contractor, Wison Engineering Ltd. (Wison; Shanghai; www.wison.com) has recently introduced details about its proprietary butadiene technology, which is set for commercialization. The process aims to meet the anticipated growth in annual butadiene consumption, which will “far exceed” global expansion in...
http://www.che.com/chementator/catalysis/A-new-butadiene-process-is-set-for-commercialization_10566.html
May 1, 2013
Researchers from the group of Atsushi Fukuoka at the Catalysis Research Center of Hokkaido University (Sapporo; www.cat.hokudai.ac.jp), and Showa Denko K.K. (SDK; Tokyo, both Japan; www.sdk.co.jp) have developed a new catalyst that efficiently decomposes biomass into sugars. The activated-carbon-based catalyst achieves high yields of both C6 and C5...
http://www.che.com/chementator/catalysis/One-pot-synthesis-of-sugars-from-biomass_10445.html
May 1, 2013
The research groups of Keiichi Fujishige at Tohoku University (Sendai, www.che.tohoku.ac.jp/~erec) and Daicel Corp. (Osaka, both Japan; www.daicel.com) have developed a process for making 1,3-propanediol (1,3-PDO) from glycerin, a byproduct of biodiesel-fuel production. The researchers improved a catalyst developed by Fujishige to be applied to a rather simple reaction process. They are expecting that...
http://www.che.com/chementator/catalysis/Making-13-PDO-from-glycerin_10446.html
April 1, 2013
Ken-ichi Tominaga and colleagues at the National Institute of Advanced Industrial Science and Technology (AIST; Tsukuba, Japan; www.aist.go.jp) have developed a hybrid catalyst system that can be used to convert cellulose into levulinic acid. The catalyst consists of two types of acid: indium(III) trifluoromethanesulfonate (In(OTf)3), a Lewis acid; and p-toluenesulfonic acid...
http://www.che.com/chementator/catalysis/A-hybrid-acid-catalyst-makes-levulinate-from-cellulose_10368.html
March 1, 2013
Shu Kobayashi and his research group at the University of Tokyo (Japan; www.chem.s.u-tokyo.ac.jp/users/synorg/index_e.html) have developed a ruthenium-silver nanocluster catalyst for the highly selective 1,4-addition reaction for the formation of asymmetric carbon-carbon bonds. Previously, the group had used its polymeric incarceration (PI) method to form metallic nanoclusters supported on a polystyrene-based...
http://www.che.com/chementator/catalysis/A-bi-metallic-nanocluster-catalyst-for-highly-selective-asymmetric-C-C-formation_10265.html
January 1, 2013
Researchers at the U.S. National Institute of Standards and Technology (NIST; Gaithersburg, Md.; www.nist.gov) have developed a relatively simple, fast and effective method of depositing uniform, ultrathin layers of platinum atoms onto a surface. The technique may lead to a reduction in the amount of precious metal needed for catalyst applications, such as catalytic converters in automobiles and hydrogen...
http://www.che.com/chementator/catalysis/A-low-cost-route-to-ultrathin-Pt-films_10058.html
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