Let’s see how LPG production from the refinery complies with the current* * What about standard automotive LPG?

1. Process route. . . a. Catalytic absorption stabilization system produces vehicle liquefied gas ； b. Hydrocracking fractionation system separates vehicle liquefied gas ； c. Reformation partial debutanizer to produce vehicle liquefied gas 2. Technical indicators. . . The components below C2 are less than 3%, the components above C5 are less than 3%, and other indicators are the same as liquefied gas. 3. Main technical difficulties and ways to overcome them. The main technical difficulty is that the components below C2 of the vehicle liquefied gas produced by the reforming debutanizer are more than 3%, and can reach as high as 9%. The solution is to blend several liquefied gases.

Gasoline can be made by aromatization first, with a yield of about 45% (Euro III standards), dry gas and carbon less than 1%, and the remainder is LPG that meets automotive standards.

Vehicle liquefied gas has restrictions on olefins, and the liquefied gas from the catalytic device cannot be directly used as a blending component of vehicle liquefied gas.

The formulation of vehicle liquefied gas standards was revised by referring to foreign standards. . . Total olefins shall not exceed 5%, butadiene shall not exceed 0.05%, sulfur content shall not exceed 270, and C2C5 is also required. . . Mainly propane or a mixture of propane and butane. . . Let’s see, there are technical difficulties that need to be overcome in converting refinery gases such as catalytic LPG, coking LPG and reformed hydrogenated petroleum gas into vehicle LPG. . . I heard that Ji Lian and Sheng Lian in Shandong had production experience, but now they basically no longer produce. . . There are many small indicators that are difficult to meet. . . Hainan uses LPG hydrogenation method to saturate olefins and then produce LPG for vehicles. Have you heard about it? This can be explained here. . . :lol This post was last edited by wangsc on 2009-2-5 14:11 ]