Magtech logo in purple and white colors.

Glycerine Refining

glycerolysis A sprawling industrial plant with a network of pipes and chimneys, A sprawling industrial plant with a network of pipes and chimneys, symbolizing the complexity of modern biodiesel plant manufacturer processes.


Glycerine, as we know, has diverse utilities across industries around the globe. Food, pharmaceuticals, and cosmetics are the major consumers among them. Unfortunately, India still has a lot to do about tapping the opportunity of global export, which stands at a meager 0.33% only with respect to the global demand. Such a pitiful scenario may be ascribed to quality and costing issues persistently plaguing Indian glycerine refining industries.

We have a pretty straightforward solution to this problem and have a well-thought-out plan that can potentially give a huge boost to our industry. But before we get into these details, let’s have a discussion on how the thing works and how we are so relevant to this.

How does glycerine refining work? 

Crude Glycerol sourced from various industrial chemical processes such as Oil Processing, Fats Splitting, Hydrolysis, Saponification, Transesterification, etc., are parsed through a series of following unit processes and operations to achieve the desired purity of glycerine. As one of the leading glycerine refining plant manufacturers, here, we have walked you through the process of purification of glycerine. 

Why a Precision Glycerine Refining Plant is relavant?

In the global market, the acceptability of glycerine hinges on some factors- purity, color & odorlessness, and pricing. To harness the full potential of glycerine, it must undergo meticulous refining to ensure it meets the stringent standards set by various countries and their industries. This is what all the glycerine refining plant suppliers in India aim for in the contemporary market.

MAGTECH Advantages:

Purity Is Paramount: This is the primary attribute that is met in the first place. As discussed earlier, the purity of glycerine is non-negotiable, especially in pharmaceuticals, cosmetics, and food processing; any trace of impurities or undesirable odor can run its chance of rejection by the downstream industries. Achieving such purity demands precision and expertise on the part of the manufacturer. And, we stand hand in hand to pledge such high efficiency of your plant every time.

Cutting-Edge Technology: Our state-of-the-art machinery and equipment are meticulously crafted to deliver consistent and superior results with a primary focus on low CAPEX and low OPEX through low energy consumption. We utilize innovative technologies to ensure that the glycerine refined through our processes is of the highest quality at a very competitive cost.

Customized Solutions: As in the case of biodiesel plant solutions, here also we recognize that each application has its unique requirements. The most varying part of the whole solution is the type and initial purity of feedstock sourced from different types of industry output. That’s why our solutions are customizable to suit the specific needs and scale of your operation, which always indicates cost savings to the clients.

Step 1:

Glycerine Intake and Pretreatment: The process is defined by the feeding of crude glycerol laden with various impurities, including methanol, salts, soap, fatty acids, and undesirable odor compounds, from the said sources. The objective of this section is to unburden the feed from particulate impurities, soap, methanol partially, and water and homogenize the mixture to make it a perfect feed for the next section. 

Treated with sulphuric acid, the soap and free oil content is transformed into free fatty acid, which is neutralized and removed by caustic lye. Following this, running through a decanting chamber or column, the glycerol is stripped of all lightweight impurities by phase separation in order to get more pure glycerol.

Step 2:

Dehydration: Glycerol, typically obtained from the previous step, contains residual water and methanol along with other miscible impurities. We engineered the flash removal unit for methanol and then the heat exchanger for moisture removal to ensure maximum removal efficiency with low energy cost.

step 3:

Decolorization: The Crude glycerol can exhibit a dark color due to miscible impurities and contaminants. Decolorization is the art of restoring clarity to glycerine. We designed a bleaching unit in which activated carbon or other specialized adsorbents are applied to treat the glycerine stream, which selectively captures and removes color-causing impurities. Following this, thorough filtration or centrifugation ensures the glycerine emerges with a pristine appearance.

step 4:

Distillation for Purity: Perhaps one of the most important, if not the most important, of all the steps is distillation. It serves a dual purpose: separating glycerine from water and further purifying it by removing volatile impurities. In the distillation column, heat is applied, glycerine vaporizes, and under carefully controlled conditions, it is separated from water, which typically exits as the bottom product. This process results in glycerine of remarkable purity. Our specially engineered multi-stage distillation column also ensures maximum efficiencies in intended action with remarkably low energy costs. This sets us apart from the run-of-the-mill glycerine distillation plant manufacturers.

step 5:

Deodorization for Quality: Residual odor challenges the acceptability of the finished pure glycerine in certain industries, such as cosmetics and pharmaceuticals. In our deodorization step, any residual odors or flavor compounds are meticulously removed. The result is glycerine that not only meets high purity standards but also surpasses expectations in terms of odor and taste.