Archives :: Processing & Handling :: Thermal & Energy Management

Displaying 321 - 340 of 424 stories.
June 1, 2007
The Shenhau Group (China) and the Dow Chemical Co. (Midland, Mich.; edlinks.che.com/6896-552) signed a cooperative agreement last month and plan to study the feasibility for building a world-scale coal-to-chemicals complex in Shaanxi Provence, China. The study is...
http://www.chemengonline.com/processing_and_handling/thermal_and_energy_mgmt/fuels/Dow-cooperations_3281.html
June 1, 2007
    Environmental regulations, the economy, an aging infrastructure and the always growing demand for energy are well-known factors driving the need to reshape today’s power generation industry. But how the pending changes will impact the chemical process industries (CPI) may come as a surprise. Once new technologies such as clean coal and advanced nuclear come online, end users in the CPI...
http://www.chemengonline.com/processing_and_handling/thermal_and_energy_mgmt/power_generation_and_transmission/The-Evolution-of-Power_3326.html
May 1, 2007
An integrated energy scheme that combines the generation of substitute natural gas (SNG) from coal, coproduction of biofuel and electricity and near-zero emissions of carbon dioxide, is being developed by Arizona Public Service (APS, Phoenix; edlinks.che.com/6895-532), Arizona’s largest utility, with the support of the U.S. Dept. of Energy’s National Energy Technology Laboratory (NETL...
http://www.chemengonline.com/processing_and_handling/thermal_and_energy_mgmt/fuels/Hydrogasification-project-aims-to-produce-clean-energy-from-coal-wind-and-biomass_3250.html
May 1, 2007
“Green” diesel fuel that can be blended with petroleum-derived diesel fuel has been produced from vegetable oil in a process developed jointly by UOP LLC (Des Plaines, Ill.; edlinks.che.com/6895-533) and Eni S.p.A. (Milan, Italy). The fuel is a “premium diesel blending component” for a refinery, with a boiling range comparable to typical diesel products and a cetane number of 80...
http://www.chemengonline.com/processing_and_handling/thermal_and_energy_mgmt/fuels/A-green-process-for-petroleum-refineries_3251.html
May 1, 2007
Biodiesel fuel is typically produced by the transesterification of vegetable oil or animal fats in a batch operation that takes about 1-1/2 h. Hydro Dynamics, Inc. (HDI; Rome, Ga.; edlinks.che.com/6895-534) claims to have cut the residence time to 2–3 s in a continuous process that uses the company’s patented...
http://www.chemengonline.com/processing_and_handling/thermal_and_energy_mgmt/fuels/Shock-waves-step-up-biodiesel-fuel-production_3252.html
May 1, 2007
A coal-gasification reactor that resembles a metals smelter and operates in two cycles (oxidation and reduction), alternately producing hydrogen and syngas, is being developed by Diversified Energy Corp. (Gilbert, Ariz.; edlinks.che.com/6895-536) and Alchemix Corp. (Carefree, Ariz.). In the oxidation cycle (diagram, left), steam is injected into a bath of molten iron-tin alloy to form iron oxide and...
http://www.chemengonline.com/processing_and_handling/thermal_and_energy_mgmt/fuels/This-coal-gasification-process-produces-H2-and-CO-rich-syngas-in-separate-streams_3254.html
May 1, 2007
Following up on its success with the world’s first commercial plant to use a new oil-recycling process, Puralube GmbH (Elsteraue, Germany; edlinks.che.com/6895-538) plans to build a second plant near the first one, in Zeitz/Elsteraue. Scheduled for startup at the end of 2008, it will have the same capacity as the first, at approximately 80,000 m.t./yr of used oil. Christian Hartmann...
http://www.chemengonline.com/processing_and_handling/thermal_and_energy_mgmt/fuels/A-second-plant-for-an-oil-recycling-process_3256.html
May 1, 2007
In order to produce ethanol with nearly 100% purity from fermentation broth, conventional processes use a two-step distillation operation, which accounts for almost 55% of the total energy requirements. Therefore, improving the concentration step is a key to reducing the costs of making bioethanol. A promising step in this direction is a new gating membrane being developed by professor Shin-ichi Nakao at...
http://www.chemengonline.com/processing_and_handling/thermal_and_energy_mgmt/fuels/The-cost-for-concentrating-ethanol-may-drop-thanks-to-a-membrane-that-acts-like-a-valve_3257.html
May 1, 2007
If every vehicle in the U.S. ran on fuel made primarily from ethanol instead of gasoline, the number of respiratory-related deaths and hospitalizations would likely increase, according to a study by Mark Jacobson, associate professor of civil and environmental...
http://www.chemengonline.com/processing_and_handling/thermal_and_energy_mgmt/fuels/Is-ethanol-the-answer_3260.html
May 1, 2007
    Fired heaters are used considerably in the chemical process industries (CPI), for heating crude oil in the petroleum refining and petrochemical sectors. Unfortunately, fired heaters are often taken for granted and neglected more than other equipment in terms of operation and maintenance. Proper care and attention to these heaters can prolong run lengths and increase reliability and safe...
http://www.chemengonline.com/processing_and_handling/thermal_and_energy_mgmt/kilns_ovens_and_furnaces/Minimizing-Flame-Impingements-In-Fired-Heaters_3134.html
May 1, 2007
A paper-thin battery, with an electrode made from a redox-active organic polymer film (200 nm thick), has been designed by researchers at Waseda University (Tokyo; edlinks.che.com/6895-547). The polymer has nitroxide-radical groups that act as charge carriers. According to professor Hiroyuki Nishide, this “organic radical" battery presents several advantages over alternative, organic-based...
http://www.chemengonline.com/processing_and_handling/thermal_and_energy_mgmt/power_generation_and_transmission/Flexible-battery_3261.html
May 1, 2007
            Many coal-fired power plants make gypsum and construction materials. But they should also consider manufacturing hydrochloric acid and ethanol. Furthermore, they should consider substituting biomass and waste organics for up to 10% of the coal. The combination of these initiatives would make coal plants much “greener.” Coal is the cost effective way to...
http://www.chemengonline.com/processing_and_handling/thermal_and_energy_mgmt/power_generation_and_transmission/Coal-fired-power-plants-should-become-chemical-manufacturers_3325.html
April 1, 2007
Together with four partners, the Fraunhofer Institute for Chemical Technology (ICT; Pfinztal, Germany; edlinks.che.com/6894-550) has developed an insulation material that is made...
http://www.chemengonline.com/processing_and_handling/thermal_and_energy_mgmt/Sustainable-insulation_3247.html
April 1, 2007
    China's tremendous economic growth and modernization has propelled the nation to a position where its consumption of energy imports outpaces its economy. As the world's third-largest oil importer, after the United States and Japan, China imported a record-high 36.38-million tons of refined oil last year, 15.7% more than in 2005, to fuel an estimated annual economic growth of 10.7%, reports...
http://www.chemengonline.com/processing_and_handling/thermal_and_energy_mgmt/A-better-energy-balance-for-China_3322.html
April 1, 2007
Cleaning the interior of firetubes in oil-, biomass- or coal-fired boilers is a time-consuming task that can normally be done only when a boiler is offline. Now, a system that can do the job automatically while the boiler is in operation is available from Optimum Environmental Technologies B.V. (Arnhem, Netherlands; edlinks.che.com/6894-538). Optimum's Automatic in-line Pipe Cleaning System...
http://www.chemengonline.com/processing_and_handling/thermal_and_energy_mgmt/boilers_and_steam_handling/An-online-tube-cleaning-system-for-firetube-boilers-_3236.html
April 1, 2007
Another online boiler-cleaning system, in this case for coal-fired watertube boilers, is offered by GE Energy (Kansas City, Mo.; edlinks.che.com/6894-539). GE's automated system, called Powerwave+, is more efficient and less expensive than sootblowing with high-pressure steam, the commonly used online method for cleaning the...
http://www.chemengonline.com/processing_and_handling/thermal_and_energy_mgmt/boilers_and_steam_handling/-and-this-one-uses-shock-waves-to-clean-watertube-boilers_3237.html
April 1, 2007
The cost of producing ethanol promises to be reduced by 50% through a process being developed by TNO (Zeist, Netherlands; edlinks.che.com/6894-536). The reason for the dramatic cut is that ligno-cellulosic material is hydrolyzed in a single step, using concentrated sulfuric acid. In contrast, conventional hydrolysis is a two-step process in which...
http://www.chemengonline.com/processing_and_handling/thermal_and_energy_mgmt/fuels/A-cheaper-route-to-ethanol_3234.html
April 1, 2007
Mitsui Engineering & Shipbuilding Co. (MES; Tokyo, Japan; edlinks.che.com/6894-540), in cooperation with Chugoku Electric Power Co. (Hiroshima, Japan), is building a pilot plant that will produce 5-m.t./d of natural gas hydrate (NGH). The plant, located at Chugoku Electric's Yanai Power Station (Yamaguchi, Japan), is a scaled-up version of MES's 600 kg/d pilot plant, which has been operating since...
http://www.chemengonline.com/processing_and_handling/thermal_and_energy_mgmt/fuels/A-step-closer-to-transporting-natural-gas-hydrates_3238.html
April 1, 2007
A process that yields hydrogen by using solar energy to split water has received one-third of the €1 million Descartes prize, awarded annually for research financed by the European Commission (Brussels, Belgium). The process was developed under the Hydrosol project, headed by the Chemical Process Engineering Research Institute, Center for Research and Technology-Hellas...
http://www.chemengonline.com/processing_and_handling/thermal_and_energy_mgmt/fuels/Solar-electrolysis_3239.html
April 1, 2007
Jet fuel, or other fuels, could one day be produced from cheap animal fats - byproducts of slaughterhouses and meat-processing plants - through a process being developed at North Carolina State University (Raleigh; edlinks.che.com/6894-542). So far, NCSU has tested parts of the...
http://www.chemengonline.com/processing_and_handling/thermal_and_energy_mgmt/fuels/Fuels-from-fat_3240.html
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