Hydrogenation Process for Manufacturing Specialty Oils and Solvent


An Indian organization developed a hydrogenation process for manufacturing oils and solvents from crude oils.

The hydrogenation is done in two stages:-


Sulphur content made minimum before starting hydrogenation using Nickel based catalyst with higher Nickel content at 200 deg. C. temperature and 40 atmospheric pressure.


Hydrogenation was done using Nickel catalyst (5 to 6%) at temperature above than 200 deg. C. and 20 to 40 kg/cm2.

In conventional after getting the distilled fractions, acid / oleum treatment is given. Acid used may be 5 to 20%, depending on the product quality desired. Acid reacts selectively with the unsaturated hydrocarbons and removes them as acid sludge. If 15% acid is used, it reacts with almost 15% of oil and about 30% acid sludge is produced. Thus they lose about 15% of the distilled product and highly acidic sludge is produced.

As compared to conventional process, there is no loss of oil during the process and improves the yield by 0.5 % (approx) as hydrogen is added to the oil in Hydrogenation process. No acidic sludge formation during the process. Therefore reduce environmental pollution.

Technical Advantages

Aniline Point achieved in the process was 83oC, which is acceptable for almost all the products.

Un Saponiable Residue (USR) value was achieved up to 87%, which is found satisfactory for some of the end products, though higher USR Avalue of 98 and above is required for specialized products like Rolling oil and ink oil.

For further information please contact

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