Specific emission control processes
A suspension of fine solid particles or liquid droplets, in gas is called aerosol and can be separated by different working principles.
The aerosol and particulate matter removal system (AFAS), like the Venturi scrubber, uses the principle of inertia to separate the aerosols.
In this case, a high-pressure or two-fluid nozzle produces a liquid droplet that is fast and as small as possible. The aerosol collides with this droplet due to its inertia. In a second step (coalescing stage), the formed conglomerate of aerosol and liquid droplets is separated from the gas stream.
With the aid of suitable ceramic filter candles or bag filters, liquid or solid aerosols are separated. Filter candles are usually used to separate liquid aerosols. The gas to be cleaned is passed through a filter. Diffusion and barrier effect cause a collision of the aerosols with the densely packed material of the filter candles then stick to the surface.
Bag filters are used for the deposition of solid aerosols, as long as condensation of water vapor can be excluded.
GEA's spray drying evaporation is a simple process that requires limited attention from the operator while maintaining high reliability. It can be easily integrated with either existing or new WFGD.
Environmental pollution of heavy metals is increasingly becoming a problem and global concern. In addition to the calomel process, often used in the field of non-ferrous metal production, GEA uses wet Electrostatic Precipitators (ESP), Spray Drying Absorption (SDA) and Ceramic Catalyst Candles (BisCat) to reduce heavy metals from flue gas.
Bubble Columns feature a high liquid to gas volume ratio, beneficial when conducting rather slow reactions in the liquid phase as large reaction volumes can be realized. Ideal when dry spots must be avoided in the contactor.
The conversion of hot metal into steel produces CO-laden gases of high caloric value. The recovery of these gases means to save a considerable amount of energy. The LT-Steel Gas Process has established worldwide.
Something caught Farmer Tom's eye. Instead of another product demo, GEA showcased innovations via AR. That's only the start of GEA's interactive digital farm.
GEA scientists are working with researchers at the Graz University of Technology to configure a homogenization process and technology that turns eucalyptus pulp into 3D-printed, organic structures mimicking human veins, arteries and other tissues.
Companies like GEA process and store large amounts of sensitive data. However, security incidents, from ransomware attacks to physical intrusions and industrial espionage, are ever-expanding. GEA’s effective protection of its business partners’ data – as well as its own proprietary information – is evolving into a competitive advantage. We spoke with Iskro Mollov, GEA’s Chief Information Security Officer, about what it takes to protect a global business in a volatile world.