Process:	Indirect Heated Vacuum Thermal Desorption / Vacuum Distillation
Source:	Tank cleaning sludge from crude oil tanks Oil lagoons, oil pits, sedimentation ponds Solid phase from centrifugation Drill cuttings, oil based mud (OBM) Contaminated materials from pipeline leakage
Input Material:	Sludges with varying viscosities, semi-solids, solids, soils

Key facts

Evaporating system:	Dryer heated with thermal oil, certified for ATEX operation
Heating system fired by:	Fuel oil, diesel, natural gas, biofuels, recovered mineral oil fraction
Evaporation conditions:	app. 450 °C boiling point (< 50 mbar absolute pressure at 350 °C)
C10-C40 output:	Below 1 %, < 0.1 % possible – according to EN 14039
Treatable by-products:	VOC, POP, lubricants, water, mercury
Plant design:	Fixed or mobile execution, 0.5 … > 5 t/h throughput capacity
Optional:	Remoistening, cooling and stabilisation of cleaned solid output

Greatest benefits of the AVA VacuDry technology

Turn-key, skid-mounted mobile or stationary mounted, custom made solutions
Defined separation of reusable hydrocarbons by gradual heating
Utilisation of recovered mineral oil fraction for burning inside the thermal oil unit
Highest operational availability due to self-cleaning dryer
Highest quality of recovered oil due to indirect heating under vacuum, no cracking processes
Reuse of the condensed, clean water for the re-moistening of treated mineral solid output
Emission and dust free system by encapsulated treatment of exhaust vapours and solids
Optional engineering service for mechanical pretreatment by centrifugation
AVA VacuDry system meets fully EN health&safety and environmental standards

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