Gas sweetening is the process of removing Hydrogen Sulfides, Carbon Dioxide, and Mercaptans from natural gas to make it suitable for transport and sale.
What is meant by sweetening in petroleum refining?
In petroleum refining: Sweetening. Sweetening processes oxidize mercaptans into more innocuous disulfides, which remain in the product fuels. Catalysts assist in the oxidation. The doctor process employs sodium plumbite, a solution of lead oxide in caustic soda, as a catalyst.
What is water sweetening process?
A process used to remove hydrogen sulfide [H2S] and carbon dioxide [CO2] from a gas stream. The water is removed while the acid gas can be flared or further treated in a sulfur recovery unit to separate out elemental sulfur. … Finally, the lean ethanolamine is returned to the absorber.
What is the function of gas sweetening system?
Gas sweetening processes remove these contaminants so that the gas is suitable for transportation and use. Schlumberger designs and manufactures a variety of gas sweetening systems, including amine systems. We offer a number of amine solvents that remove the contaminants by chemical reaction.
What are the methods used for the sweetening of natural gas?
How Is Sour Gas Sweetened? This procedure is very similar to the absorption techniques employed for dehydration and NGL separation. With H2S neutralization, however, an amine solution — amine being an ammonia derivative — is used in an overwhelming majority of natural gas sweetening process cases.
What’s the meaning of sweetening?
noun. something that sweetens food, beverages, etc., as sugar, saccharine, etc. the process of causing something to be or become sweet.
What is natural gas dehydration?
Gas dehydration is a process of extracting moisture out of natural gas and gaseous mixtures. It often precedes either a pipeline transportation of gas or a low temperature based gas processing.
What type of chemical reaction is taking place during gas sweetening?
Gas sweetening is a process that has to be executed to remove hydrogen sulphide (H2S) from gasses. Gas sweetening is sometimes referred to as amine treating. Amine treating can be used in refineries, petrochemical plants, natural gas processing plants and other industries.
Which gas is known as sweet gas?
Sweet gas is the natural gas that contains very little or no the hydrogen sulfide. The H2S is undesirable due to its toxicity in addition to being corrosive to all metals used in the equipment for gas processing, handling and transportation.
How do you cure sour gas?
Sour gas treatment involves using amine solutions to remove acid gases such as hydrogen sulfide (H2S) and carbon dioxide (CO2) from hydrocarbon gas in refineries and gas plants.
What do you mean by sweetening of natural gas?
Gas sweetening is the process of removing Hydrogen Sulfides, Carbon Dioxide, and Mercaptans from natural gas to make it suitable for transport and sale. Sour gas must be sweetened because H2S and CO2 have a corrosive effect on gas pipelines and are also toxic to humans.
What is sour gas and sweet gas?
Sour gas is natural gas or any other gas containing significant amounts of hydrogen sulfide (H2S). … Natural gas that does not contain significant amounts of hydrogen sulfide is called “sweet gas”.