MATERIALS • PROCESSES • FINISHES
SECTION TITLE
fertiliser by means of simple chemical processes. Te adsorber material is then 100% reusable.
GOING MOBILE Following multiple successful applications of the technology in a variety of industries – such as automotive, waste management and mining – demand for the company’s Advanced Adsorption Technology has grown steadily over the past year. To meet this demand, the technology is now available for the first time in a transportable test unit to allow cost- effective testing of the technology for individual industrial needs directly at the point of emission. “In order to meet this gratifying
interest, we have reacted flexibly and developed a mobile test plant,” says Dr. Krajete. “Tis can be connected and tested by any interested party directly to its emission stream in the stack. Tus, the potential of our technology can be tested directly and comprehensively without any adaptation of existing processes.” In this way, the technology’s potential
for neat recovery and subsequent commercial use of the captured emissions can be verified, while its potential can also be built upon. For example, the removal of nitrogen oxides is not only important for cleaning up emissions, but also for future CO2 storage technologies. Additionally, other impurities such as carbon monoxide, sulphur dioxide,
Customers can assess emission control technologies with the mobile test unit
hydrogen sulphide and hydrocarbons can be captured and utilised with Advanced Adsorption Technology. “We are further developing the technology into a versatile gas fractionation and recovery system,” adds Dr. Krajete. “Finally creating a commercially attractive alternative to today’s ‘disposable’ processes that collect contaminants but do not allow further utilisation. Tis is no longer in-keeping with the times.”
Te mobile test unit is essentially designed to serve as a bridge-builder between the laboratory, where initial tests prove the suitability of the technology, and the later large-scale plant. Te test unit has
A CLOSER LOOK AT ADSORBENTS A
n adsorbent material is a solid substance that tends to adsorb another substance
or remove the impurities from liquid or gas substances that are harmful to the environment. A series of materials can be used in the adsorption process. Typical adsorption materials include activated carbon, zeolithes, scavengers, activated alumina, lignite coke, and bentonite. Activated carbon is one of the cheapest and widely used adsorbents, and can be utilised
to remove a large variety of pollutants. Synthetic adsorbents are made of spherical crosslinked polymer particles that have a porous structure. Adsorption of compounds to synthetic adsorbents mainly results from hydrophobic interactions between the compounds and the synthetic adsorbents. Natural adsorbents, meanwhile, are made from materials found in nature, including natural fibres, volcanic rocks, soils, plant biomass, agricultural and
exactly the same design as the latter, and features a capacity of 400 m3/h. “Until now, interested parties could either test the technology in the laboratory or not at all – both of which were fraught with risk for subsequent upscaling,” Dr. Krajete says. “With the mobile test facility, we have eliminated this risk. It is a confidence-building measure between us and our prospects and will have a catalytic function for the use of the Advanced Adsorption Technology.
For more information, visit
www.krajete.com
industrial wastes, animal shells, microalgae and fungal biomass. Generally, adsorbents can be classified into these main categories: Natural materials treated to develop their properties and structure such as ACs, activated alumina or silica gel; natural materials such as wood, fuller’s earth or bauxite, and sawdust; industrial by-products and agricultural solid wastes such as fly ash or red mud; and bio sorbents such as chitosan, fungi or bacterial biomass.
www.engineerlive.com 33
Page 1 |
Page 2 |
Page 3 |
Page 4 |
Page 5 |
Page 6 |
Page 7 |
Page 8 |
Page 9 |
Page 10 |
Page 11 |
Page 12 |
Page 13 |
Page 14 |
Page 15 |
Page 16 |
Page 17 |
Page 18 |
Page 19 |
Page 20 |
Page 21 |
Page 22 |
Page 23 |
Page 24 |
Page 25 |
Page 26 |
Page 27 |
Page 28 |
Page 29 |
Page 30 |
Page 31 |
Page 32 |
Page 33 |
Page 34 |
Page 35 |
Page 36 |
Page 37 |
Page 38 |
Page 39 |
Page 40 |
Page 41 |
Page 42 |
Page 43 |
Page 44 |
Page 45 |
Page 46 |
Page 47 |
Page 48 |
Page 49 |
Page 50 |
Page 51 |
Page 52
