Mectech Process Engineers Pvt. Ltd.



Fatty Acid industry is associated with production of fatty acids and glycerine. Both vegetable oils & animal fats are being used as feedstock for fatty acids / glycerine manufacturing. The fatty acids are manufactured as a distillate mixture or a pure fraction. Pure fractions can be obtained either from fractionation plant or by selectively choosing the feed-stock & carrying out straight distillation.


Fatty Acids and Glycerine Plant, Fatty acids, glycerine manufacturing plant
The Advantage
» Each plant component is designed to MICRO level; hence performance of each component is controlled to the required level.

Our plants are 100% custom-built and we do not sell the “standard plants”.


It results in good “Turndown” Ratio for plant operation..

» Customer need not compromise on his requirements. We can supply the plants of required capacities at desired parameters such as utility consumptions, operability, plant life as per customer’s request.



The bio-diesel system is able to use different cold- and hot pressed fresh vegetable oils as well as pre-treated used vegetable oils.


In all cases, if the operator of the plant follows the required qualities of the input materials and ensures a constant process operation, the product quality will be in correspondence with the requirements of the European bio-diesel standard DIN EN 14214 as well as with all other conventional international norms.


It has to be pointed out, that used vegetable oils and certain fresh oils like palm oil only can be used for the production of so-called “summerbiodiesel” because the winter stability can not be ensured yet. For all different raw materials a transesterification grade of > 98 % and constant product quality will be reached.

Biodiesel manufacturing plants


The current offered plants are a BASE-LINE offer and further customization / improvement will be done against customer’s specific request.


Mectech's Revolutionary on-line seperation system for fatty acid and glycerine phase


Working principal
Driving force for Static Separator is gravity flow. The Separator is a static device having highly specialized internals and level controller. The internals are so specially designed that, the disperse phase smaller droplets gets agglomerate on the surface to form bigger globules. This enhances process of separation of the two phases.


The agglomerated bigger globules represents Free Disperse Phase and is padded through an environment where sufficiently quiescent conditions are maintained, so that disperse phase globule rises to the continuous phase surface; forming a layer of disperse phase liquid. The removal of both phases from the separator is through level controller. Both phases are freely discharged under gravity.



Process Units in soap noodles plant, Soap Manufacturing Soap noodles


Fatty acids sourced from Palm stearin, Rice-Bran Oil, Coconut Oil, Tallow…etc. are typically blended together to form fatty acids blend for soap manufacturing.


Today all premium grade soaps are being manufactured from blend of the distilled fatty acid.


Fat splitting plant


In Fat Splitting Plant, hydrolysis reaction of oil / fat is carried out. The reaction takes place at high pressure and high temperature. Triglycerides (fat/oil) react with water to convert into fatty acids and glycerol. The Fat Splitting Plant is a high-pressure single tower system.


The fatty matter proceeding from battery limits is pre-heated and fed to the de-aerator operating under vacuum.


The de-aerated fat is fed via a high-pressure pump to the bottom of the tower. In bottom of the tower, there is a heat recovery section where de-aerated fat isheated by the exiting sweet water. The process water is fed via a high-pressure pump to the top of the splitting tower.


In top of the tower, there is a heat recovery section where process water is heated by the discharging crude fatty acids. The high pressure splitting tower is provided with temperature controllers.


Fat splitting plant, Hydrolysis reaction of oil

Fatty acids distillation plant


Fatty Acids Distillation plant is broadly divided into three main section. vis. de-gasification, pre-cut system and main distillation system. These main process section are supported for optimum cooling based on thermostatised water system.


Fatty acids distillation plant


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Crude fatty acids from battery limit is filtered, pre-heated and admitted to the de-gasifying unit operating under vacuum, where it is dried and de-gasified. Crude fatty acids, from de-gasifier is heated in thermic fluid exchanger and fed to the pre-cut column.



The pre-cut column operates under vacuum and is composed of various section; starting from bottom, the main sections are vaporization section, Two sections of distillation packing bed, pump-around section and scrubbing section. From bottom of the column, the product is sent to Fatty Acid Distillation column.


» The main distillation column operates under vacuum and is composed of various section; starting from bottom the main sections are vaporization section, stripping section, one set of washing section, one pump-around section and one scrubbing section


Glycerine distillation plant


Glycerine Distillation Plant is broadly divided into three main sections section, distillation section and bleaching section.



The de-aeration loop consists of a re-circulation pump and heat exchanger. The pump circulates the crude glycerine to the de-aeration vessel and feeds de-aerated crude glycerine to the distillation column.



The distillation section is composed of various systems consisting off vaporization system, stripping system, rectification system, pumparound system and scrubbing system.



Bleaching section composed of two fixed beds of activated carbon. Distilled glycerine is cooled to bleaching temperature and then passed through the bleachers.


The bleached glycerine is filtered and then finally cooled down to storage temperature before discharging to the battery limits.



Glycerine Distillation Plant, Glycerine Manufacturing Plants


Sweet water concerntration plant, Sweet water treatment plants


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Sweet water treatment plant:


The feed sweet water is obtained from the fat splitting plant.
The SW received in off-site tanks is a clear liquid and it contains some fatty matter. The facility provided for treatment is capable of employing two steps of treatment.


Vertical cylindrical vessels with conical bottoms are provided for treatment purpose. Various kinds of treatment can be utilized. However, the treatment is employed mainly for removal of fatty matter.


Sweet water concentration plant:

SW Concentration Plant is essentially multiple effect evaporation system operating under vacuum. The vacuum system is a package unit based on steam jet ejector. Thermocompressor is employed for energy efficiency.


Each effect consists of an evaporator (heat exchanger), vaporization chamber and, a droplet separator.


The concentrated glycerine (crude glycerine) is transferred to battery limit under temperature control.