■ Product Overview

Vanadium has become a key limiting factor affecting catalyst performance in petroleum catalytic cracking operations. Vanadium in raw oil can trigger a series of complex chemical reactions inside the catalytic cracking unit. Firstly, vanadium competes with zeolite catalysts for adsorption sites, seriously interfering with the normal interaction between the catalyst and oil, exacerbating dehydrogenation reactions, resulting in excessive generation of hydrogen and coke, greatly affecting the selectivity of high value-added products such as gasoline; Secondly, in the high-temperature environment of the regenerator, vanadium is oxidized to low melting point V ₂ O ₅. Once it encounters steam, it will generate vanadic acid, which has strong corrosiveness and can erode the crystal structure of zeolite molecular sieves, significantly reducing the surface area of the catalyst and leading to a sharp decrease in catalytic cracking activity and gasoline selectivity. For example, in some catalytic cracking units that process high vanadium crude oil, due to ineffective control of vanadium pollution, the catalyst activity sharply decreased by more than 30% in a short period of time, the yield of light oil decreased by more than 10%, and the energy consumption of the unit increased significantly, seriously impacting the economic benefits of the enterprise. To effectively address this severe challenge, our company has invested a large amount of research and development resources and successfully launched this high-performance vanadium capture agent.

■ Productcharacteristic

1. Efficient vanadium capture capability: This vanadium capture agent adopts advanced formula and unique preparation process, rich in active ingredients with strong affinity for vanadium. Under catalytic cracking reaction conditions, it can quickly react chemically with vanadium in the feedstock oil to form stable and high melting point compounds, effectively preventing the migration and aggregation of vanadium on the catalyst surface, thereby efficiently protecting the active centers of the catalyst and significantly slowing down the rate of vanadium poisoning to the catalyst.

2. Good compatibility: It has excellent compatibility with various catalytic cracking catalysts and can be directly added to the system without changing the original catalytic cracking process conditions. Whether it is a common Y-shaped molecular sieve catalyst or a new high-performance catalyst system, this vanadium capture agent can work synergistically with it, stably exerting its vanadium capture effect without negatively affecting the other performance of the catalyst, ensuring the smooth operation of the device.

3. High stability: Under the complex operating conditions of catalytic cracking units, including high temperature, high pressure, and strong oxidation environment, this vanadium capture agent exhibits excellent stability. Its chemical structure is stable and will not decompose or become inactive due to extreme conditions inside the device. It can continuously and stably exert its vanadium capture performance, providing a solid guarantee for the long-term stable operation of the device. During a month long continuous industrial application test, the performance of the vanadium capture agent remained stable without any performance degradation.

4. Environmental Economy: The product preparation process strictly follows the concept of green chemistry, does not use any harmful substances to the environment, and does not produce secondary pollution during use. At the same time, by effectively protecting the catalyst, extending its service life, reducing the frequency of catalyst replacement, and lowering the operating costs of the device, it has significant economic benefits.

■ Mechanism of action

This vanadium capture agent has been carefully developed to overcome the serious damage caused by vanadium to catalysts in catalytic cracking units. At present, the trend of heavy and inferior crude oil is becoming increasingly prominent, and the vanadium content in raw oil continues to rise, which brings many thorny challenges to the catalytic cracking process. This product can capture vanadium element with extremely high efficiency, effectively preventing its toxic behavior towards the catalyst, thereby significantly improving the operational efficiency and economic benefits of the catalytic cracking unit, and effectively ensuring the long-term stable operation of the unit.