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LPG Fractionation — separates propane, butane, and other hydrocarbons.

LPG Recovery — recovers LPG components from refinery/gas streams.

Hydrocracking — converts heavier hydrocarbons into lighter products.

Fluid Catalytic Cracking (FCC) — converts heavy refinery fractions into lighter hydrocarbons, including LPG.

Hydrodesulfurization (HDS) — removes sulfur from hydrocarbon streams.

Hydrotreating — removes sulfur/nitrogen and stabilizes refinery streams.

Selective Hydrogenation — removes unsaturated compounds such as diolefins.

Gas Sweetening — removes H₂S and other acidic contaminants.

Molecular Sieve Drying — removes water from LPG/gas streams.

Depropanization — separates propane from heavier hydrocarbons.

Debutanization — separates butanes from heavier hydrocarbons.

Deethanization — removes ethane and lighter components.

Catalytic Reforming — converts naphtha into higher-octane reformate and hydrogen.

Fischer–Tropsch Synthesis — converts syngas into hydrocarbons; not normally an LPG-production step.

Alkylation — converts light olefins and isobutane into high-octane alkylate.