Archives :: Processing & Handling :: Separation (Gas-Solid & Liquid-Solid)

Displaying 101 - 120 of 130 stories.
November 1, 2009
This photo shows a spray dryer with a heat recuperator. The plant has an evaporative capacity of 1,825 kg/h Spray drying is one of the major industrial drying technologies. It is applied by many industries because of its ability to convert a liquid product into a dried powder in a lenient single step and because it allows you to control temperature and the particle formation process very accurately...
http://www.chemengonline.com/processing_and_handling/sep_gas_solid_and_liquid_solid/dryers/A-Primer-on-Spray-Drying_5237.html
May 1, 2009
Evaporation of moisture or volatile organic compounds (VOCs) from bulk solids usually takes place in two stages: one in which the drying rate is constant, and the second in which the rate decreases over time. Devolatilization during the first stage is rapid and can be readily accomplished in flash, spray, or fluidized bed dryers. In the second stage, however, the VOC or moisture removal rate is diffusion...
http://www.chemengonline.com/processing_and_handling/sep_gas_solid_and_liquid_solid/dryers/Designing-and-Operating-Gravity-Dryers_4768.html
February 13, 2009
A new modular-based separator will make its debut at Achema 2009. This separator can reduce energy consumption by up to 50%, depending on the media and application, says the firm. Also on...
http://www.chemengonline.com/processing_and_handling/sep_gas_solid_and_liquid_solid/Separation-solutions-that-meet-the-demands-of-today‚s-markets_4545.html
January 1, 2009
Ceramic filters are well suited for high-temperature processes that are subject to strict emissions limits, including those for dioxins About Incineration Incineration processes are being widely used more and more to deal with the disposal of waste materials. In many countries, land filling of waste materials is not practical or desirable due to a lack of appropriate sites. Incineration has the benefit of...
http://www.chemengonline.com/processing_and_handling/sep_gas_solid_and_liquid_solid/dust_collectors_and_separators/Controlling-Emissions-With-Ceramic-Filters_4445.html
December 1, 2008
When it comes to dust collection in the chemical process industries (CPI), there exists a wide variety of needs. For example, folks in dyes and pigments have a different set of dust collection challenges than those in the pharmaceutical industry, who have differing requirements from processors working with paints and varnishes. However, any and all chemical processors can boost process efficiency by...
http://www.chemengonline.com/processing_and_handling/sep_gas_solid_and_liquid_solid/Newsfront-Dust-collection-Clean-up-your-act_4364.html
October 15, 2008
Last month, Donaldson Torit (Minneapolis, Minn.; www.donaldson.com) launched the Torit PowerCore dust collectors, which are up to 50% smaller than traditional baghouses. An extension of the firm’s patented PowerCore technology that has been proven in engine...
http://www.chemengonline.com/processing_and_handling/sep_gas_solid_and_liquid_solid/baghouses/Chementator-Smaller-baghouses_4256.html
June 15, 2008
After several years of proven operation in the food- and nutritional-products industry, a patented drying technology is now ready to be applied for any liquid or slurry product. Developed by MCD Technologies, Inc. (Tacoma, Wash.; edlinks.che.com/7373-535), the Refractance Window (RW) system is said to cost about one third as much as freeze drying equipment, and consumes about one third to half the energy...
http://www.chemengonline.com/processing_and_handling/sep_gas_solid_and_liquid_solid/dryers/Chementator-Drying-at-the-speed-of-light_3958.html
January 15, 2008
A method for the purification of single-walled carbon nanotubes (SWNTs) in four sequential steps — oxidative pretreatment, acid treatment, silica dissolution, and froth flotation — has been proposed by a team from the Petroleum and Petrochemical College, Chulalongkorn University (Bangkok, Thailand; edlinks.che.com/7368-536). Team leader Sumaeth Chavadej says the...
http://www.chemengonline.com/processing_and_handling/sep_gas_solid_and_liquid_solid/Chementator-Purification-of-Single-walled-Nanotubes-Using-Froth-Flotation_3617.html
January 15, 2008
Centrifugation is the method of choice in the chemical process industries (CPI) for separating solids from liquids. It relies on the G-forces generated by high-speed rotation to recover solids or liquids from slurries, as well as clarify liquids or classify solids. Centrifuges can be categorized as either sedimentation or filtration units. Sedimentation centrifugation relies on a difference in density...
http://www.chemengonline.com/processing_and_handling/sep_gas_solid_and_liquid_solid/centrifuges/Facts-at-Your-Fingertips-Sedimentation-Centrifuging_3601.html
January 15, 2008
At Pollutec 2007 (Paris, France; November 27 – 30), Veolia Water Solutions & Technologies (Paris, edlinks.che.com/7368-531) introduced the next generation of its Actiflo clarifier process for potable and process water — Actiflo Turbo. Like its predecessor, the patented Actiflo Turbo process uses microsand to enhance flocculation and settling, which makes the process quicker to startup, more...
http://www.chemengonline.com/processing_and_handling/sep_gas_solid_and_liquid_solid/hydrocyclones/Chementator-Save-Space-Money-and-Water-with-This-New-Clarifier-Process_3612.html
November 15, 2007
Better control of baghouses and cartridge-type dust collectors can pay dividends in energy savings, longer filter life and effort spent in tracking environmental compliance. That’s the message from Richard Kapcha, a control specialist with MikroPul (Charlotte, N.C.), which manufactures a wide range of dust collection equipment. “Until the early 1990s we were supplying baghouses with cleaning...
http://www.chemengonline.com/processing_and_handling/sep_gas_solid_and_liquid_solid/Keep-Control-of-Your-Dust_3494.html
November 15, 2007
Last month at the BioProcess International Conference (Boston, Mass.; October 1–3), Novasep Process (Boothwyn, Pa.; edlinks.che.com/6901-533) launched a new technology for downstream processing of biologicals. BioSC (Biopharmaceutical Sequential Chromatography) uses a process known as sequential multi-column continuous chromatography (SMCC), which improves throughput and stationary phase productivity...
http://www.chemengonline.com/processing_and_handling/sep_gas_solid_and_liquid_solid/Slash-downstream-processing-costs-for-producing-biologicals-with-this-new-chromatography-technology_3503.html
October 1, 2007
The world’s power plants, industrial companies and mines will spend $6.1 billion in 2007 for fabric filter equipment, systems and elements to clean up stack gases, according to a report by McIlvaine Co...
http://www.chemengonline.com/processing_and_handling/sep_gas_solid_and_liquid_solid/baghouses/Fabric-filters_3385.html
September 1, 2007
    Kermit the Frog once said, “It isn’t easy being green.” While this may be true, industry is still making the effort. Both in the U.S. and abroad, processors are not only striving to produce environmentally friendly products, but also are becoming more mindful of the impact of their operations. More often than not, cleaning up both products and processes requires the use of...
http://www.chemengonline.com/processing_and_handling/sep_gas_solid_and_liquid_solid/The-Green-Revolution_3366.html
August 1, 2007
Crossflow (CF) filtration is widely used for separating substances with poor filtration properties. As the method’s name implies, a crossflow of the feed continuously flows across the filter membrane in order to wash away material accumulations that clog the membrane pores. Nevertheless, conventional methods rely on a pump to adjust the feed overflow rate, which requires substantial energy, even for...
http://www.chemengonline.com/processing_and_handling/sep_gas_solid_and_liquid_solid/Slash-energy-consumption-with-this-new-crossflow-filtration-process_3305.html
August 1, 2007
    In the chemical process industries (CPI), pressure is constantly on to improve filtration. The filtration step has to be performed quickly (time is money), efficiently (product loss is money lost), and effectively (energy costs for pumping and drying are soaring). As a result, vendors of filtration equipment — be it for dust removal from fluegas or product recovery from a gas or liquid...
http://www.chemengonline.com/processing_and_handling/sep_gas_solid_and_liquid_solid/Filtration-in-the-spotlight_3331.html
June 1, 2007
  A high-shear reactor that is said to accelerate chemical reaction rates by up to three orders of magnitude will get its first commercial tryout in the production of biodiesel fuel. Kreido Biofuels, Inc. (Camarillo, Calif.; kreido.com), the reactor's developer, will shortly start up a unit for Foothills Bio-Energies (Lenoir, N.C.; edlinks.che.com/6896-531), where it will add 1 million gal/yr to the...
http://www.chemengonline.com/processing_and_handling/sep_gas_solid_and_liquid_solid/centrifuges/High-speed-reactor-willspin-out-biodiesel-fuel_3263.html
May 1, 2007
    Pure water is an essential ingredient in the manufacture of a vast amount of products in the U.S. and, of course, throughout the world. In the industry for which I work, electricity generation, high-purity water is an absolute must for feeding high-pressure steam generators. But of course, steam generation is also important in the petroleum-refining and petrochemical industries...
http://www.chemengonline.com/processing_and_handling/sep_gas_solid_and_liquid_solid/filtration/Microfiltration-For-CPI-Wastewater_3147.html
April 1, 2007
    The world's largest pharmaceutical conference and exhibition, Interphex, will be held at the Jacob Javits Convention Center in New York from April 24-26. Approximately 1,000 global companies that serve the pharmaceutical and biotechnical industries will showcase their latest lines of equipment, technologies and services in the areas of manufacturing, sourcing and services, information...
http://www.chemengonline.com/processing_and_handling/sep_gas_solid_and_liquid_solid/filtration/Interphex-Show-Preview_3163.html
February 1, 2007
Nippon Oil Corp. (Tokyo, Japan; edlinks.che.com/6892-538) has completed a confirmation test of a magnetic-separation process that selectively removes spent FCC (fluid-catalytic-cracking) catalysts from actives ones. The process runs continuously and requires no shutdown of the FCC unit; normally, FCC catalysts have to be replaced periodically, which sometimes requires interruption of the FCC operation. The...
http://www.chemengonline.com/processing_and_handling/sep_gas_solid_and_liquid_solid/Continuously-replace-spent-FCC-catalyst-with-this-magnetic-separator_3204.html
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