How to Reuse Fruit Shell Activated Carbon

The service life of fruit shell activated carbon is generally 1-2 years, and its service life is affected by iodine value, water pH value, water flow rate, and the relative content of suspended solids in water. Shell engine oil activated carbon can regenerate carbon, in other words: after a period of application, if the adhesion level of Shell activated carbon decreases, it can be reused through regeneration.
1. Heat the activated carbon of the fruit shell to about 100 ° C, evaporate water, bake at 800 ° C, and then heat it to 800-900 ° C to carry out activity, so that the organic compounds absorbed in the shell can be air oxidized and removed, allowing the shell activated carbon to be regenerated.
2. Boil activated carbon from the shell for regeneration. The volatile components at the melting and boiling points can basically be blown away by steam. This method is simple and causes relatively little damage.
3. Add 10% acid or caustic soda solution to the activated carbon of the fruit shell to regenerate it. Add 10% acid or alkali shell activated carbon to remove organic chemical attachments.

The efficacy of fruit shell activated carbon depends on the development of adsorption and separation technology, therefore the rapid development of fruit shell activated carbon has always been the key to adsorption and separation technology. For example, using zeolite molecular sieves as absorbents can remove CO and N2 from gas mixtures, but it is not possible to remove a small amount of CO from gas containing N2 based on adsorption. This is because the adsorption separation method is generally based on the differences in physical characteristics of various chemical substances, while the physical characteristics of CO and N2 are very similar, only indicating differences in adsorption characteristics in low-temperature environments. Therefore, π - complex adsorption has become a hot topic in recent years, representing the trend of technological development in adsorption separation.

Generally speaking, organic chemical composite bonds have better van der Waals forces but reversibility. It can be destroyed through simple engineering projects, such as increasing ambient temperature or reducing work pressure. Therefore, it is necessary to develop and design an adsorbent that is different from the general physical adsorption system, in order to obtain CO concentration values from gases containing N2. Shell activated carbon has the characteristics of strong selectivity, strong adsorption capacity, and high content. Generally, the physical adsorption process is reversible, but it has defects such as low separation index and low selectivity.

According to the differences in adsorption characteristics between absorbents and adsorbents, adsorption can be divided into physical adsorption and chemical adsorption. The results show that the shell activated carbon has achieved good experimental results and is suitable for industrial development. The selectivity of chemical adsorption is generally very high, but due to the strong flexibility of chemical adsorption, it is generally unable to be removed, so many chemical adsorption processes are inevitable and cannot meet the needs of industrial production. Chemical absorption is the interaction between the adsorbed molecular structure and the surface molecules of the absorbent.

A relatively highly selective and reversible adsorption separation method must be found. Composite adsorption separation is different from physical adsorption separation methods, therefore composite adsorption refers to the ion bond formed by the π bond between the absorbent and the adsorbent. Generally speaking, the daily composite strength is relatively poor, belonging to the weak ionic bond type, with high selectivity and reversibility. According to a simple whole process, debt can be broken, and digestion and absorption can start from clearing and absorbing the entire process.