Vmets - Biodiesel Plant with Hydrodynamic Cavitation
From Biodiesel Plant
VMETS proprietary hydrodynamic cavitation technology, generates controlled hydrodynamic cavitation to produce biodiesel from vegetable oils, animal fats and biodiesel from waste cooking oil. Biodiesel refers to fatty acid methyl or ethyl esters formed by ester conversion of vegetable oil (such as rapeseed oil, soybean oil, peanut oil, corn oil, cottonseed oil, etc.), animal oil (such as fish oil, lard, tallow, sheep oil, etc.), waste oil or microbial oil and methanol or ethanol. Biodiesel is a typical “green energy”, with good environmental performance, good engine starting performance, good fuel performance, wide raw material sources, and renewable characteristics. Vigorously developing biodiesel has important strategic significance for sustainable economic development, promotion of energy substitution, reduction of environmental pressure, and control of urban air pollution.
Product Details
Biodiesel can be produced by various conventional methods, such as: alkali catalysis, acid catalysis, lipase catalysis etc. Due to the fact that the transesterification is an equilibrium reaction, an excess of alcohol is used to displace the reaction towards esters formation. Non-edible oil and alcohols are immiscible, so that their reaction takes place at the interface in a very slow process. The reaction is catalyzed by alkali, acid or enzyme. Enzymes-catalyzed procedures, using lipase as catalyst, do not produce side reactions, but the lipases are very expensive for industrial scale production and a three-step process is required to achieve a 95% conversion. Acid catalyzed process is useful when a high amount of free fatty acids are present in the vegetable oil, but the reaction time is very long (48–96 h) even at the boiling point of the alcohol, and a high catalyzed procedure, some soap is formed and it acts as phase transfer catalyst, thus helping the mixing of the reactants. Basecatalyzed process is strongly affected by the mixing of the reactants and/or by efficient heating that produces tiny droplets, thus increasing the reaction area. Presently, mixing/heating is the commonly adopted process in worldwide industrial applications. Considering these limitations, there is a strong quest to develop an efficient, time-saving, economically functional and environmental friendly biodiesel production process at industrial scale having superiority over the classical procedure. Keeping this aspect into consideration, some of the recently developed biodiesel production technologies are power ultrasound, hydrodynamic cavitation and supercritical methanol processes.
Hydrodynamic cavitation is a potential method for biodiesel production at industrial scale due to its easy scale-up property. In the presence of hydrodynamic cavitation. This is a rapid technique for preparing alkyl esters from triglycerides at pilot plant scale operation. Cavitating conditions identical to acoustic cavitation could be generated in hydrodynamic cavitation (HC), which even had a better effect on mixing immiscible liquids. Furthermore, scale-up of hydrodynamic cavitation to meet industrial-scale operations had better opportunities than the ultrasonic reactor by reason of its easier generating and less sensitivity to the geometric details of the reactor.
In hydrodynamic cavitation method mixing of two phases of reaction is carried out by cavitation conditions, produced by pressure variation, which in turn obtained by using the geometry of system to create velocity variation. Cavitation is generated by the flow of liquid under controlled conditions through simple geometries such as venturi tubes & orifice plates. When the pressure at the throat falls below the vapour pressure of liquid, the liquid flashes, generating a large number of cavities which subsequently oscillate and then give rise to pressure & temperature pulses. These pulses cause the better mixing of immiscible liquids and enhanced transesterification process.
Hydrodynamic Cavitation Technology:
VMET-HC Biodiesel Plant adopts the exclusive multiple stages Hydrodynamic Cavitation technology to enhance the reaction between catalyst, methanol and oil to produce the best FAME to meet ASTM 6751 & EN 14214 standards for direct use in any modern diesel engines.
Containerized/Skid-Mounted Design:
Moveable & Flexible during transportation & installation.
Standard 20/40’ container or skid-mounted design allows the whole system to be running on a smaller footprint.
The designing service & drawings are provided upon particular requirement for the buyer for free of charge.
Energy Saving:
By using the hydrodynamic cavitation technology, VMET-HC biodiesel plant consumes ONLY 15% of energy compare with the traditional biodiesel production process.
- By equipped with an additional power generator, you can even get this plant running off from the grid by consuming the biodiesel it produces (3%). You can also use the grid electricity to power up this plant.
Modular Architecture – (Optional for Pre-esterification & Glycerin Refining):
For feedstock such as waste frying oil & algae oil with high FFA, VEMT employs an additional pre-esterification modular to be as pretreatment process to turn the FFA into to be prepared for following steps.
- For customer who wants the product of refined glycerin, VMET will equips glycerin refining modular to produce the finest product of glycerin.
Optional of Semi-Automatic/Full Automatic control system:
- Whole system is controlled by the PLC allows the operator to run the plant on semi-automatic or full automatic mode.
Optimized process & formula for FAME filtration & polishing:
To get the best quality of B100 biodiesel production, we have optimized our process and formula for FAME filtration & polishing to get rid of the solid particles, soap, glycerin & methanol etc.
P.S.: Heavy contaminated feedstock (i.e. used cooking oil) with high Fatty acid content more than 5-7% FFA has to be processed by VMET-TD Biodiesel Plant.
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