Absorption stability

The operating conditions for light hydrocarbon recovery are quite different from those for absorption stabilization. . . The absorption stabilization process is applied to rich gas, mainly consisting of liquefied gas and dry gas components below C5. . . The operating pressure is high; the crude gasoline from the fractionation tower is used as an absorption fluid to absorb the liquefied gas component in the rich gas. The dry gas remaining after this absorption process is then absorbed by diesel, resulting in pure dry gas ； The crude vapor that has absorbed liquefied gas is then sent to the stabilization unit, where, using the principles of distillation, the desired components of liquefied gas are separated and extracted; what remains is stabilized gasoline. . . After pre-alkaline washing, desulfurization, or hydrorefining, the gasoline can then be made into finished product ready for shipment. . . The light hydrocarbon separation unit is generally used to process the condensate from oil field associated gas (or natural gas), whose main components are butane, pentane, up to C8, and at most C9 or C10. . . . The processing procedures and the end product are generally: 1. Producing petroleum ether. . . Make chemical reagents. . 2. Produce solvent oil. . . Used as a solvent for extracting vegetable oils. . . 3. Produce aromatics. . . Triphenyls such as diphenyl, toluene, and xylene. . . Wait. . . :lol

The second floor covered everything very comprehensively; it’s great for learning*. . . . . . :victory:

The unit operations involved are different; the absorption and stabilization system includes absorption, desorption, and stabilization (distillation) processes, while light hydrocarbon stabilization only involves stabilization (distillation) processes. Absorption stabilization is a process used in refinery catalytic cracking units to treat the rich gas and crude gasoline from the distillation tower, thereby further separating them into stabilized gasoline, liquefied gas, and dry gas (gas) ； Light hydrocarbon stabilization involves separating the light hydrocarbons recovered from oil field associated gas by the oil field crude oil stabilization units into light hydrocarbons (naphtha) and liquefied gas products.

The person on the second floor knows so much; I really admire them :handshake

I would like to add that absorption stabilization is not only used in catalytic units but also in coking processes; its important function is to separate the dry gases from gasoline along with the liquefied gases, thereby producing stabilized gasoline.