Methyl Ethyl Mercaptan Removal From Crude Oil And Oil Products
The need for purification of hydrocarbons from light mercaptans (С2H5SH and CH3SH) due to the requirement for compliance with GOST.
To remove the methyl ethyl mercaptans most widespread different versions the alkaline treatment, in which the formation of large amounts of difficult to dispose of highly toxic sulfur-alkaline waste.
Such wastes are chemically contaminated and at relatively low volumes are high concentrations of toxic substances. The toxicity of such waste does not allow their discharge to water courses or onto the ground even after significant processing.
Existing methods neutralize such wastes require high energy costs and environmentally safe. Therefore, in practice, the most common way of "recycling" Sulfur-alkaline waste is underground burial, which does not solve the problem: toxic waste accumulated, wastes contaminate groundwater and end up fall in the water supply system. Aquatic ecosystems, the nature and the health of the population to bear the irreparable harm, it is impossible to assess.
Disadvantages of alkaline demercaptanization:
- Formation sulfur-alkaline waste;
- The high level of losses of oil, because when the supply of air to the hydrocarbon blown a significant amount of valuable propane-butane and gasoline fractions, which increases the density of oil and thus reduces the sale price;
- The high level of capital expenditures;
- For a long period of reaching the project indicators;
SPE "NefteSintez" LLC
offers liquid-phase’s catalyst (reagent) THIONOL
жидкофазный for removal of hydrogen sulfide and light mercaptans.
The decrease in the content of active sulfur occurs directly in the environment of the hydrocarbon by direct catalytic conversion of mercaptans RSH and hydrogen sulfide H2S in disulfides.
||The catalyst THIONOL
|Method of administration
||dosage in the flow of oil
|Consumption (catalist ppm / ppm mercaptan)
|Deposits in the pipes
The catalyst THIONOL
- The catalyst THIONOL is made in the form of oil soluble additive reagent.
- A catalyst does not contain highly toxic and aggressive ingredients (caustic alkal , formaldehyde, triazine, etc.)
- The catalyst is non-combustible and corrosive.
- The catalyst has a pour point of minus 45 CELSIUS.
- The catalyst has no negative impact on the commodity oil.
- Reduced content of hydrogen sulfide and mercaptan sulfur is carried out by means of direct conversion to disulfides.
- The average consumption of the catalyst is equal to 1 ppm of the catalyst per 1 ppm of active sulfur.
The advantages of the catalyst THIONOL towards alkaline demercaptanization:
- Our technology allows to implement a process of sweetening of crude oil without capital expenditures.
- Technology THIONOL does not require changing the parameters of the technological mode (temperature, pressure, etc.).
- Technology THIONOL does not require the use of air, eliminating the flaring exhaust air regeneration with alkali emissions of acid gases ( SO2 ).
- Technology THIONOL is waste-free, disposal problems Sulfur-alkaline waste does not occur.
- Technology THIONOL, unlike the existing alkaline sweetening processes is capable to remove not only the hydrogen sulfide and light mercaptans, but mercaptans in General, makes cleaning up any required depth.