NOVELTY - The process involves sending a natural gas stream (2) to an absorbent unit (38) containing a chemical solvent and a physical solvent to realize removal of carbon dioxide, hydrogen sulfide, carbonyl sulfide and organic sulfur compounds to produce a partially purified gas stream. A partially purified gas stream is sent to a dehydration unit (30) to remove water to produce a natural gas product stream. The sulfur compounds are removed from the absorbent unit to produce liquid (42) includes the sulfur compounds. The gas stream is sent to the adsorbent unit (12) for removal of mercury.    USE - Process for treating a natural gas stream e.g. natural gas liquid stream such as carbon dioxide-enriched gas stream and sulfur species-enriched liquid stream, and acid gas stream, in sulfur plants.    ADVANTAGE - The process enables transporting sulfur species that are converted to liquid form or sequestered in a solid adsorbent that can be easily transported off-site while providing minimum or no hydrocarbon loss if the liquid is sold to a refinery for processing. The process enables removing acid gas compound impurities e.g. carbon dioxide impurities, hydrogen sulphide impurities, carbon-oxygen-sulfur impurities, organic sulfur compound impurities, water impurities and mercury impurities, required to meet end product specifications so as to avoid product blockages in downstream process equipment in an efficient manner.    DETAILED DESCRIPTION - The chemical solvent is selected from a group consisting of amine, ammonia, potassium carbonate and sodium carbonate. The natural gas product stream is dry and sulfur-free. The natural gas stream is a mercury depleted natural gas stream (6).    DESCRIPTION OF DRAWING(S) - The drawing shows a functional block diagram illustrating a process for treating natural gas and processing sulfur contaminants.    Natural gas stream (2, 10)    Mercury depleted natural gas stream (6)    Adsorbent unit (12)    Dehydration unit (30)    Absorbent unit (38)    Liquids (42, 46)