■ Product Overview

This defoamer for delayed coking is specially tailored for delayed coking unit, aiming to effectively solve the foam problem during unit operation. In the delayed coking process, the feed oil undergoes deep thermal cracking at high temperature, which will produce a large number of gas phase products and coke, and this process is very easy to cause the formation and accumulation of foam. Excessive foam will not only affect the gas-liquid mass and heat transfer efficiency in the coking tower, but also may lead to serious accidents such as tower flushing and flooding, threatening the safe and stable operation of the unit. This defoamer can rapidly reduce the surface tension of foam, promote the rupture and dissipation of foam, ensure the smooth reaction in the delayed coking unit, ensure the efficient operation of the unit, and reduce the risk of production fluctuation and equipment damage caused by foam problems through a unique chemical action mechanism.

■ Productcharacteristic

Efficient defoaming: With the innovative formula, it has excellent defoaming ability for all kinds of stubborn foam generated in the delayed coking process, such as foam caused by the volatilization of light hydrocarbons, polymerization of heavy components and other factors. It can quickly eliminate a large amount of foam in a short time, with fast defoaming speed and high efficiency. It can effectively maintain the normal liquid level and operating pressure in the coking tower and avoid abnormal production caused by foam accumulation.

Long lasting foam suppression: Not only can it quickly defoam, but it also has excellent anti foaming performance. During the operation of the device, it can inhibit the re generation of foam for a long time, keep the device in a stable operating state for a long time, reduce the addition frequency of defoamer, and reduce production costs.

Quick dispersal: It has good dispersion performance, can quickly disperse evenly in the complex reaction system of the delayed coking unit, and ensures that the defoamer can timely and fully contact with the foam and play its role. Even under the working conditions of high temperature, high pressure and high flow rate, it can quickly reach the area where foam is generated to achieve efficient defoaming.

Widely compatible: Fully considering the complex process characteristics of the delayed coking unit, it has good compatibility with the raw oil, reaction products, coke, and other additives inside the unit. It will not interfere with the normal delayed coking reaction process, nor will it have adverse reactions with other chemicals, ensuring the safe and stable operation of the device without affecting product quality and production efficiency.

Safety and Environmental Protection: Select environmentally friendly raw materials and strictly follow relevant safety and environmental standards for production. During use, it ensures the safety of operators and poses minimal environmental hazards. After use, there will be no residual harmful substances in the device or environment, making it easy to handle and in line with the development concept of green chemistry, helping enterprises achieve sustainable development.

■ Scope of application

This delayed coking defoamer is suitable for delayed coking units in various refineries, mainly used in the following key areas:

Coking tower: The core equipment for delayed coking reaction, where foam is mainly produced. Defoamer can quickly play a role in the coking tower, eliminate foam caused by cracking of feed oil, escape of gas phase products and other reasons, ensure gas-liquid separation effect in the tower, maintain normal liquid level and pressure, prevent tower flushing, flooding and other accidents, and ensure the smooth progress of coking reaction.

Fractionation tower: Equipment used for separating coking reaction products. In the process of fractionation, foam may also be produced due to complex material composition, temperature changes and other factors. Defoamers can effectively inhibit the generation of foam in the fractionator, improve the fractionation efficiency, ensure product quality, and avoid foam affecting the normal operation of the fractionator.

Emptying system: The venting system of the delayed coking unit is used to discharge excess gas-phase products and non condensable gases. In the process of venting, if there is foam, it may lead to pipe blockage, equipment damage and other problems. Defoamer can eliminate foam in vent system, ensure smooth vent pipeline and ensure safe operation of the device.