We have been using a high cost desiccant in our facility to remove water from an air stream. Someone has suggested that we test "kitty litter- and a different desiccant as potential replacements. However, these materials, although cheaper than the current mole sieve material, are not so inexpensive that we can simply discard them when they become saturated. Your job is to:.
• Determine the H2O uptake for each of the materials.
• Determine the optimum drying conditions for each material.
• Do not exceed 80 deg C in the batch dryer.
• Scale up the process to 12 T/day on a continuous belt dryer that is 4 ft wide and 50 ft. long for the best candidate.
• Report your findings to management with your recommendations.
• Temperature control should be included.
• Include PFD in both reports.
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III. Introduction.
A desiccant is a material that readily soaks up water vapor from surrounding air. The desiccant will continue to adsorb moisture until it becomes saturated. These desiccants or adsorbents are generally classified as amorphous or structured, and hydrophobic or hydrophilic. Many different substances exist which are capable of adsorbing, but few are of industrial significance. Commonly used industrial desiccants include silica gel, molecular sieves, activated carbon, and activated alumina. These desiccants are used to eliminate moisture or other impurities from gas streams.
Once the desiccant is saturated with moisture, it can be recycled through a process of regeneration. The regeneration process is a form of drying, in which water or some other liquid is evaporated from a solid material to reduce the content of liquid to some acceptable value. During regeneration, hot air or inert gas is used to dry the adsorbent. This is a form of thermal vaporization which is a highly energy intensive process. .
Various different types of drying equipment are available depending on the particular application.
They brought in a new grain dryer for a station. ... Seven years later, the grain dryer malfunctioned, causing a fire. The University of Michigan sued the dryer maker for damages in tort for product liability. The dryer maker defended that UM is a merchant under the UCC so therefore could not sue in tort. ... In 1985, the University purchased a gas fired blower dryer unit, manufactured by Chief. ...
The reason for this is that the washer machine always finishes before the dryer. ... Sometimes the load in the dryer is not fully dry. ... When the towels in the dryer are finished, I would take them out and put them in the dryer. ... When they are done washing, I check the dryer to see how much the towels have dried. ... Then I start the dryer up, and go to bed. ...
Now that the wash cycle is complete, remove the clothes from the washing machine and put them into the dryer and if you wish, you can also throw in an anti-static sheet with the load. Then be sure to remove lint from the lint tray usually located on the top of the dryer. ... After setting the timer all you have to do now is shut the dryer door and turn it on. Once your clothes are completely dry, remove them from the dryer and fold them and you're all set. ...
I feel that in order to stop laundry theft on college campuses, students should be required to bring a lock to put on in-use washers and dryers. ... In order to make washers and dryers safer for students laundry, each BGSU student should be required to purchase a universal lock to put on the washer or dryer that they are using. ... Each washer and dryer would have two small pieces of metal welded to it, one on the machine itself and one on its' door. ... The only costs would be to install lock mechanisms onto the washers and dryers, and purchasing the locks that all students would then re...
Possible Causes On May 4th, 1988 workers were doing welding work on the buildings steel reinforced fiberglass paneling, on the batch dryer house (see appendix A). ... It is also thought that the fire could have been caused by electrical faults, overheated motors, or the batch dryer itself. The batch dryer motor was repaired early that morning, making it a possible candidate for the cause of the fire. ... Making the situation worse, was the AP residue all over the batch dryer house. ... Immediately after this explosion, there was a second explosion in the dryer building, and a third in the chl...
A washer/ dryer product already exists on the market but has failed to achieve notoriety. ... These include those who do not own either a washer, dryer or both. ... The propensity to purchase in this category is affected by the length of the product life cycles of the existing washers and dryers in the market. ... Principal Competition/Competitive offers The WashDry will be positioned in the market against Laundromats as well as washers and dryers currently sold in the market place. ... A comparative approach should be used that shows the benefits of this new machine over the Washing Machin...
In the September 5th issue of Rolling Stone there are two advertisements that display very attractive people gazing and posing to the viewer. In advertising, we are bombarded by images that have become standard in defining beauty and what is acceptable, and we often don't realize it. In both of th...
(color) 3 DVD players 0 DVD players 4 VCR's 0 VCR's 2 computers 0 computers 3 stereo's 1 stereo's 1 microwave 0 microwave 1 stove/oven 1 stove/oven 1 toaster 1 toaster 1 coffee maker 1 coffee maker 1 dish washer 1 dish washer 1 washer machine 1 washer machine 1 dryer 1 dryer 4 electric clocks 2 electric clocks 4 phones 2 phones 4 cell phones 0 cell phones 1 paper shredder 0 paper shredder 1 copy machine 0 copy machine The reason our energy use increased so greatly...
