If you are keen on finding the right information and knowledge about the various ways by which sweetening or removal of mercaptan from hydrocarbon fractions, then it is quite likely that you will find this article interesting and informative. This process is referred to as sweetening and it is used for LPG sweetening. As far as LPG sweetening is concerned, alkaline extractive techniques are used. They not only remove alkaline substances but also are helpful in mercaptan removal from natural gas. This is followed by caustic regeneration of the various alkali compounds. This also leads to a state that is referred to as LPG desulfurization.
Understanding Kerosene Fraction Sweetening
One needs to have some basic understanding of kerosene fraction sweetening also. This process might be alkaline in nature. However, it moves directly into a hydrocarbon phase but there is a presence of atmospheric oxygen, phthalocyanine catalyst, and of course alkali. The sweetening takes place because of certain changes. The changes lead to oxidation of the various corrosive mercaptan substances. These remain dissolved in kerosene and are in a state of inert disulfides. When the right catalytic oxidative mercaptan removal is put in place, not only mercaptan is removed, it also helps in odor removal. However, this is done without making any changes to the total sulfur content infraction.
What Is Hydrotreating Process
There is another process that is used for the removal of mercaptan from kerosene. This is considered quite popular because it perhaps is simple and cost-effective. This process is referred to as a hydrotreating process. It would be interesting to have a closer look at the same because of its simple process. During this process, certain sulfur compounds including mercaptan are converted and changed to hydrogen sulfide. This is done when mercaptan remains embedded at a high temperature and it also has other compounds such as nickel-molybdenum catalyst. In this process, hydrogen is also converted into hydrogen sulfide. Once this happens it is fed to the various Claus units. This results in the hydrogen running through a process of sulfide oxidation and it regenerates into elemental sulfur. As far as kerosene hydrotreatment is concerned, mercaptan removal has to also be accompanied by the removal of various sulfur compounds.
Gas Condensation And Light Oil Sweetening
With the use of LPG alkaline sweetening technology, it is also possible to go in for light oil sweetening. The main objective and purpose are to ensure total and complete removal of various dangerous substances. These include methyl that is corrosive in nature and also ethyl mercaptan. This is a byproduct of ordinary mercaptan. This process is extremely important because it helps and assists in condensing gas and makes oil light and therefore it becomes convenient as far as transportation is concerned.
The above are just a few of the various useful ways and means by which kerosene sweetening is possible and also it is possible to ensure that harmful mercaptan is removed whether it is from a liquid source, gaseous source or other sources. There are quite a few articles available on the internet that could come in handy as far as the ways and means of the use of removal of this substance is concerned.
Chemical Products Industries, Inc. Address: 7649 SW 34th St, Oklahoma City, OK Phone: (800) 624-4356