Sulphuric acid 37% Catalyst Activation: Sulfuric acid is used in catalytic cracking units in oil refineries. It helps activate catalysts that break down larger hydrocarbons into more valuable products, such as gasoline and diesel.
Alkylation: It is used in alkylation units to combine smaller hydrocarbons (e. G., isobutene and butylene) into larger, branched hydrocarbons like isooctane, which is a high-octane component of gasoline.