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Heat Transfer

Coal-pyrolysis process yields oil plus ‘clean coal’

A medium-temperature pyrolysis process that coproduces coal-tar oil and an upgraded coal-char fuel from low-rank coals is being developed by Convert Coal, Inc. (CCI, Mission Viejo, Calif.; edlinks.chemengonline.com/6519-532). The SynCrude-Syncoal (SC2) process was described by CCI president Ebbe Skov at…

New life for a methanol-to-gasoline process

Shanxi Jincheng Anthracite Coal Mining Co. Ltd. (China) has contracted Uhde GmbH (Dortmund, Germany; edlinks.chemengonline.com/6519-535) to engineer and supply a methanol-to-gasoline (MTG) plant. The unit will be part of a pilot-scale complex being constructed at Jincheng, Shanxi Provence — about…

A new ethylene recovery unit starts up in China  

Last September, on-specification, polymer-grade ethylene was produced by the first grassroots unit to utilize an ethylene recovery technology that was jointly developed by ABB Lummus Global (Bloomfield, N.J.; edlinks.chemengonline.com/6518-537) and the China Petroleum & Chemical Corp. (Sinopec, Beijing; edlinks.chemengonline.com/6518-538). The…

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Handle Steam More Intelligently

    The dramatic jump in petroleum and natural gas prices over the recent years has created much impetus to reduce operating costs at chemical process plants. In processes that use either oil or gas for feedstock, such reduction can…

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Steam Management: Don’t Send Money Down the Drain

    Energy consciousness and environmental awareness have transformed condensate from an inexpensive byproduct of steam distribution to a valuable resource that can substantially reduce operating costs. For process systems that use steam as the heat transfer media, improved condensate…

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A commercial debut for a process to make silicon for solar cells  

This month, JFE Steel Corp. (Tokyo, Japan; edlinks.chemengonline.com/6517-532) started up a new production plant that produces 100 m.t./yr of solar-grade (SOG) silicon (Si) from crude Si metal. The company also started to design a 500-1,000-m.t./yr plant for making SOG Si,…

Three-phase emulsifying technology makes a better diesel fuel

Researchers at Kanagawa University (Yokohama, Japan; edlinks.chemengonline.com/6517-535) have developed a three-phase emulsification technology for making stable emulsions of diesel-fuel oil in water. Tests with the emulsion (involving a 30-ton truck) show that fuel-combustion efficiency is increased by 10-15% compared to…

Superconductors

The first demonstration of a new high-temperature-superconducting cable was started last month in Columbus, Ohio. The new triax cable - said to provide three times more power-distribution capacity while using half of the superconducting material, compared to previous superconducting cable…

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Get the Most Out of Waste Heat

    The process industries are extensive users of energy. But it is now clearly established that a large amount of this energy is wasted, essentially in the form of heat rejected to the environment through gaseous or liquid effluents.…

Coal-upgrading process moves closer to commercialization

Brown coal accounts for about half the world’s coal reserves. Although it contains less ash and sulfur than bituminous, brown coal contains more water, which reduces its heating value. To take advantage of this “greener” source of fuel, Kobe Steel…