The light gasoline etherification unit is idle

Bro, where is your facility located? Our company plans to install a new gasoline etherification unit this year

The raw material for the light gasoline etherification unit is the de-diene light gasoline fraction, primarily those components of catalytic gasoline that contain high levels of dienes. This type of raw material oxidizes over time and cannot be stored for long periods. Due to issues related to the yield of etherified gasoline obtained after the etherification reaction as well as its sulfur content, it may be impossible to blend this gasoline properly. However, as long as the resulting product can be blended to meet the required standards, the etherification unit can operate.

This is mainly due to the high specific gravity of etherified gasoline and oxygen content issues, which make blending difficult

The description on the 3rd floor is quite detailed; it was only then that I learned about the gasoline etherification device. It will be necessary to examine the specifications of the final product produced by this device in order to determine its intended use.

This post was last edited by 328104062 on 2015-6-21 at 12:10. It can operate perfectly; the only issue is that the catalyst has a shorter service life, and its wear and tear is greater compared to that of light gasoline after pre-hydrogenation. For a plant with a capacity of 400,000 tons per year, 75 m3 of catalyst is required for the first reaction stage (two units), and 75 m3 for the second reaction stage (one unit). The catalyst’s service life is 2 years, and the investment amounts to *000-*000 million. 1. You can definitely increase the size of the reactors, use more catalysts, or add another reactor (made of material S316+32168) in order to enable the replacement of catalysts while the reactors are still in operation. No modifications are necessary either; after operating for one and a half years or one year, the catalyst wear and tear will increase. However, the catalysts used for etherification are resin-based, specifically strongly acidic cation exchange resins, which are not expensive. Assuming a methanol consumption rate of 8%-10% per year, 30,000 tons of methanol will be used, with a profit of 4,000-5,000 per ton, so the investment can be recouped quite quickly. 2. Lower the cut point of light gasoline (for example, from 80 degrees to 65 degrees), reduce the sulfur content in etherified gasoline, and operate with a low dosage of highly active olefins – this approach can definitely enable profitability

The issues of the yield of etherified gasoline and its sulfur content need to be resolved. As for blending gasoline, as long as the resulting product meets the quality standards, that’s sufficient

The unit for etherifying light gasoline is quite good. You’re right about all those issues; dienes can be dealt with through selective hydrogenation. After selective hydrogenation, separation is carried out. Most of the thiols and thioethers end up at the bottom of the separation tower, where full-component hydrogenation desulfurization takes place. The product from the top of the separation tower is then used for etherifying light gasoline. Finally, the products from the top and bottom of the separation tower are mixed together, which effectively solves problems related to sulfur content, dienes, and low octane rating

Which manufacturer (domestic) produces good coagulators for light gasoline etherification units?

Which factory has been left idle, and why? What new device has been installed, and how is the octane rating of gasoline increased?

That’s right; using gasoline etherification is also a trend – which company’s technology should be chosen?