Table of Contents
What is merox process?
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 KERO 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.
What are mercaptans in crude oil?
What is a mercaptan? 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 are mercaptans in oil?
Which is the odorous chemical used in LPG?
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 the general formula for mercaptans?
RSH
Because sulfur is in the same group (6A) of the periodic table as oxygen, the two elements have some similar properties. We might expect sulfur to form organic compounds related to those of oxygen, and indeed it does. Thiols. (also called mercaptans), which are sulfur analogs of alcohols, have the general formula RSH.
What are mercaptans give example?
Mercaptans are organic compounds with a distinct odor. Mercaptans are most commonly found in as an emission from paper or pulp mills, and in coal tar and petroleum distillates. Sometimes, mercaptans can be found naturally in food, including onions, asparagus, and radishes.
Which chemical is used in LPG for smell?
How do you neutralize mercaptan smell?
We tackle the mercaptan from a different angle. When mixed with a light bleach solution (sodium hypochlorite), this product instantly neutralizes the mercaptan and associated odors.
What causes smell in LPG?
Propane companies add a harmless chemical called mercaptan to give it its distinctive “rotten egg” smell.
What is LPG odour?
Ethyl mercaptan in propane is also known as Ethanethiol. It is a sulfur compound with the chemical formula CH3CH2SH that is a clear liquid with a very strong and distinctive odour. Ethyl mercaptan is commonly used as an odourant with natural gas and propane-LPG, as they are naturally odourless.
How are mercaptans prepared?
By itself the -SH group is called a mercapto group. Thiols are usually prepared by using the hydrosulfide anion (-SH) as a neucleophile in an SN2 reaction with alkyl halides.
How are mercaptans formed?
Ethyl mercaptan is readily formed by the reaction of ethyl bromide with hydrogen sulfide.
What is the Merox process for aviation turbine fuel?
The sweetening of jet fuel and kerosene using the Merox process with clay bed refining is one of the processes for Aviation Turbine Fuel to meet the required specifications. So let us take a look at the Merox process in detail. What is the Merox process? Merox is short for Mercaptan Oxidation.
What happens to mercaptans in ATF Merox?
In ATF Merox, mercaptans are oxidized to disulfides which impart yellow color to ATF depending upon their concentration. By reducing the air, it could be insufficient to oxidize all mercaptans.
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 caustic Merox process?
Caustic-based Merox processes are of two types: Sweetening and Extraction. Let’s take a look at them in detail. Sweetening is a single-stage process through which mercaptans get directly converted to disulfides. It is ideal for heavier hydrocarbons, like jet fuel, kerosene, diesel, and naptha.