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

Displaying 1 - 20 of 263 stories.
August 25, 2010
A $12-billion joint venture (JV) between Shell International Petroleum Co. (Shell; The Hague, The Netherlands; www.shell.com) and Cosan S.A. (Cosan; Brazil; www.cosan.com.br/) moved...
http://www.che.com/processing_and_handling/thermal_and_energy_mgmt/fuels/Shell-and-Cosan-sign-JV-for-ethanol-production_5932.html
August 1, 2010
The research group of Kazuo Tajima at Kanagawa University (Yokohama, Japan; apchem2.kanagawa-u.ac.jp) have developed a new emulsification process that enables biodiesel fuels (BDFs) to...
http://www.che.com/processing_and_handling/thermal_and_energy_mgmt/fuels/Super-emulsion-slashes-biodiesel-production-costs-by-25-percent_5878.html
August 1, 2010
OVERVIEW Indirect heating of processes by organic thermal-liquid fluids offers highly reliable operation, and the heat transfer systems are generally treated as low-maintenance...
http://www.che.com/processing_and_handling/thermal_and_energy_mgmt/heat_transfer_media/Heat-Transfer-Fluids-System-Filtration_5888.html
July 7, 2010
GEA PHE Systems (Sarstedt, Germany; www.gea-phe.com), part of the GEA Heat Exchangers Segment, received an order for a South American grassroots petroleum refinery project. The...
http://www.che.com/processing_and_handling/thermal_and_energy_mgmt/heat_exchangers_condensers_and_coolers/GEA-PHE-Systems-receives-refinery-order-_5836.html
July 2, 2010
ABB (Zurich, Switzerland; www.abb.com)  has won an order worth $50 million from Actelios SpA, through its subsidiary Actelios Solar SpA, in Italy to supply three photovoltaic (PV)...
http://www.che.com/processing_and_handling/thermal_and_energy_mgmt/power_generation_and_transmission/ABB-to-supply-three-photovoltaic-solar-power-plants-in-Italy_5832.html
July 1, 2010

Acoustic coupling in industrial furnaces is an issue that appears to have become more prevalent as designs increase the volumetric heat density of furnaces, and burner technology is required to meet more-stringent emission requirements. The problems associated with acoustic coupling appear in the form of either large oscillations in the heater pressure or tonal and high-level emitted noise. Although the burner is often blamed for these occurrences, the coupling depends on both heater acoustic characteristics and burner dynamic characteristics. The acoustic coupling is a form of burner-heater interaction. This article shows that acoustic coupling in industrial heaters can be mitigated by enhancing the natural damping of the heater.

An experimental study on how one can enhance heater damping is presented. The approach depends on restricting the flow of fluegases while they exit a smaller side stack using an inducing device to enhance natural damping and hence mitigate acoustic coupling in heaters. The use of this technique is proven to be independent of burner type, in other words, burner combustion dynamics. So, details of the burner combustion dynamics do not have to be known for configuring and designing the device. The approach sheds some light on the conditions under which the tested burner engages in acoustic coupling.

...

http://www.che.com/processing_and_handling/thermal_and_energy_mgmt/kilns_ovens_and_furnaces/Controlling-Acoustic-Coupling_5807.html
June 1, 2010
Like other aspects of chemical processing, cooling operations are being closely examined for ways to reduce costs and resource usage. Whether it’s cooling towers or industrial gases, experts say embracing new technologies makes it possible to...
http://www.che.com/processing_and_handling/thermal_and_energy_mgmt/heat_exchangers_condensers_and_coolers/Process-cooling-Just-Cool-It!_5724.html
May 1, 2010
In late March, the world’s first demonstration plant for converting sugars directly into gasoline started up at the Madison, Wisc., facilities of Virent Energy Systems, Inc...
http://www.che.com/processing_and_handling/thermal_and_energy_mgmt/fuels/This-new-process-makes-biogasoline-from-carbohydrates_5622.html
May 1, 2010
Honeywells UOP LLC (Des Plaines, Ill.; www.uop.com) has developed a process that makes a renewable, “drop-in” jet fuel from sustainable oils, including camelina, tallow...
http://www.che.com/processing_and_handling/thermal_and_energy_mgmt/fuels/A-process-that-makes-green-jet-fuel-is-slated-for-commercialization_5623.html
May 1, 2010
Co-processing of biomass-derived feed with petroleum feed for the production of diesel fuel is a tricky business, given that the former (unlike petroleum) contains oxygen. The...
http://www.che.com/processing_and_handling/thermal_and_energy_mgmt/fuels/Revamped-hydrotreater-co-processes-light-gas-oil-and-tall-oil-derivative-to-produce-ULSD_5625.html
May 1, 2010
Less than two years ago, U.S. petroleum refiners were in the middle of an expansion and modernization program that was designed to add more than 1-million bbl/d to meet the growing demand for fuels...
http://www.che.com/processing_and_handling/thermal_and_energy_mgmt/fuels/A-perfect-storm-for-U-S-petroleum-refining-industry_5631.html
May 1, 2010
Last year (2009) was a record year for U.S. ethanol production, with 200 biorefineries producing an estimated...
http://www.che.com/processing_and_handling/thermal_and_energy_mgmt/fuels/Bioalcoholic-fuels_5632.html
May 1, 2010
Spiral plate heat exchangers are ideal for cooling slurries and viscous fluids. The performance of these units is characterized by increased turbulent heat transfer, reduced fouling, greater ease of maintenance, and more compact size compared to many competing options....
http://www.che.com/processing_and_handling/thermal_and_energy_mgmt/heat_exchangers_condensers_and_coolers/Spiral-Plate-Heat-Exchangers-Sizing-Units-for-Cooling-Non-Newtonian-Slurries_5634.html
April 1, 2010

As heat exchangers age, their tube thickness decreases because of erosion, corrosion or a combination of both. Installing thin sleeves in tubes in which the tube walls have become so thin that failure is imminent is a maintenance technique useful for extending heat exchanger life.

One should consider sleeving when: (1) it would be very costly to...

http://www.che.com/processing_and_handling/thermal_and_energy_mgmt/heat_exchangers_condensers_and_coolers/Full-Length-Sleeving-for-Process-Heat-Exchanger-Tubes_5568.html
March 29, 2010

Biodiesel, the methyl ester of fatty acids, has been accepted as a renewable-sourced alternative to fossil-derived diesel fuel. Today in many parts of the world, biodiesel is already blended with diesel fuel up to about 5%. Presently the demand for biodiesel is only approximately 40–50% of the production capacity, but the global biodiesel market is expected to experience strong growth in the next few years as the economy rebounds and the demand for renewable resources continues to increase. To further improve the quality of the biodiesel and enhance the position of biodiesel as a viable, cost-effective renewable-energy source, there has been a continued effort to make further technology improvements.

...

http://www.che.com/processing_and_handling/thermal_and_energy_mgmt/fuels/Improving-Biodiesel-Processing_5542.html
March 1, 2010

An alternative to thermal oxidation is catalytic oxidation of VOCs, which runs at much lower temperatures — about 500–900 ºF. A regenerative catalytic oxidizer (RCO) uses the same operating principle as RTO, but consumes substantially less auxiliary fuel. The authors have found that in many situations, RTOs can be retrofitted to RCOs. Energy savings after such a retrofit can quickly justify the costs for the catalysts and installation. This article discusses basic RTO and RCO technology with an emphasis on thermal efficiency and energy balance. 

...

http://www.che.com/processing_and_handling/thermal_and_energy_mgmt/Saving-Energy-In-Regenerative-Oxidizers_5500.html
February 1, 2010
Today’s high costs of energy make an energy audit evaluation of process facilities a must. Most plants were designed and built when energy costs were low by today’s...
http://www.che.com/processing_and_handling/thermal_and_energy_mgmt/Doing-an-Energy-Audit_5454.html
February 1, 2010
A survey of tower failures [ 1 ] ranks kettle reboilers as the most troublesome reboiler type in the chemical process industries (CPI). Excessive pressure drop in kettle reboiler...
http://www.che.com/processing_and_handling/thermal_and_energy_mgmt/heat_exchangers_condensers_and_coolers/Kettle-Troubleshooting_5453.html
January 1, 2010
Typical industrial and municipal wastewater-treatment plants consume an amount of energy that can represent 50% of the facility's variable operating and maintenance costs. Most employ biological processes that rely on energy-intensive aeration systems whose energy consumption is approximately 0.5 kWh per m3 of effluent treated. This article discusses a variety of design and operating improvements that can be undertaken to reduce energy consumption in wastewater treatment....
http://www.che.com/processing_and_handling/thermal_and_energy_mgmt/Wastewater-Treatment-Energy-Conservation-Opportunities_5404.html
December 2, 2009
Solutia Inc. (St. Louis, Mo.; www.therminol.com) announced today that it has supplied Therminol D12 and Therminol 66 synthetic heat transfer fluids to a new state of the art, 15,000...
http://www.che.com/processing_and_handling/thermal_and_energy_mgmt/heat_transfer_media/Solutias-Therminol-heat-transfer-fluids-selected-for-a-new-world-scale-polysilicon-plant-in-China_5329.html
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