What is LPG merox unit?
What is LPG merox unit?
Merox is an acronym for mercaptan oxidation. It is a proprietary catalytic chemical process developed by UOP used in oil refineries and natural gas processing plants to remove mercaptans from LPG, propane, butanes, light naphthas, kerosene and jet fuel by converting them to liquid hydrocarbon disulfides.
What is RSH in LPG?
The treatment process, often referred to as sweetening, involves the liquid/liquid extraction of the mercaptans (RSH) in LPG with a caustic solution, which is regenerated by oxidation with air in the presence of a liquid catalyst.
What are mercaptans in oil?
A mercaptan also known as a thiol is a sulfur compound that is naturally occurring in both crude oil and natural gas. It is the sulfur equivalent of an alcohol and comes in the form an R-SH, where R represents an alkyl or other organic group.
What is LPG Odour?
Ethyl Mercaptan
Ethyl Mercaptan is what makes propane gas smell. It’s an additive that is combined with liquified petroleum gas, or LPG, to alert users of a leak.
What is mercaptans in wine?
Also known chemically as thiols, mercaptans are organosulfur compounds that emit unpleasant, skunky aromas of rubber, sulfur or garlic. Mercaptans are often encountered in wines suffering from reduction (in which case exposure to oxygen may alleviate the flaw) as well as in very old white wines.
What are mercaptans chemistry?
Mercaptans, commonly referred to as thiols, are organosulfur molecules composed of carbon, hydrogen, and sulfur that are known for having a pungent odor similar to rotten cabbage or garlic. In nature, these compounds can be found in living organisms as a waste product of metabolism, and also in oil and gas.
What can I mix with LPG for smell?
Ethyl Mercaptan is what makes propane gas smell. It’s an additive that is combined with liquified petroleum gas, or LPG, to alert users of a leak.
Does propane smell like rotten eggs?
Propane gas has no odor. Propane companies add a harmless chemical called mercaptan to give it its distinctive “rotten egg” smell.
What are mercaptans?
Are mercaptans volatile?
Volatile sulfur compounds, and specifically mercaptans, are a hot topic in wine at the moment, so it’s worth learning a bit about them. These are the compounds largely responsible for the olfactory defect known as ‘reduction’. Thus even at low concentrations they can have a sensory impact on the wine.
What are the different types of Merox process units?
Types of Merox process units. UOP has developed many versions of the Merox process for various applications: Conventional Merox for extraction of mercaptans from LPG, propane, butanes or light naphthas. Conventional Merox for sweetening jet fuels and kerosenes. Merox for extraction of mercaptans from refinery and natural gases.
What is the difference between Merox and hydrotreaters?
The process is sometimes known as a sweetening process and is much cheaper to install than a hydrotreater, which actually lowers the sulfur content. Merox is primarily used to sweeten mercaptans from jet fuel or from LPG. In the merox process, the mercaptan is oxidized by means of a proprietary UOP catalyst, in an alkaline environment.
What is kerosene Merox?
Also known as: kerosene merox, lpg merox The merox unit is a proprietary UOP technology that selectively sweetens petroleum products by oxidizing the foul-smelling mercaptans into the sweeter disulfides which remain in the product, leaving the total sulfur content the same.
How does the Merox process convert mercaptans to disulfides?
In all of the above Merox versions, the overall oxidation reaction that takes place in converting mercaptans to disulfides is: In some of the above Merox process versions, the catalyst is a liquid. In others, the catalyst is in the form of impregnated charcoal granules.
