Realumination can be achieved through various methods, including:
1. Chemical Treatment: This involves treating the zeolite with aluminum-containing compounds such as aluminum nitrate or aluminum chloride. The treatment conditions, such as pH and temperature, are carefully controlled to facilitate the incorporation of aluminum into the framework.
2. Hydrothermal Treatment: In this method, the zeolite is treated with a solution of aluminum salts under high temperature and pressure conditions. This helps in the incorporation of aluminum into the framework.
3. Ion Exchange: This method involves exchanging the cations in the zeolite with aluminum ions. This can be achieved by treating the zeolite with a solution of aluminum salts.
