Method for preparing honeycomb active carbon from coal and coal tar

Abstract

The invention provides a method for preparing honeycomb-like activated carbon by using coal and coal tar, which takes coal dust and the coal tar as raw materials to prepare the honeycomb-like activated carbon by grinding the coal dust, charge mixture, vacuum pugging, seal aging, vacuum extruding and moilding, drying, carbonization and activation. The method for preparing the honeycomb-like activated carbon only takes the coal tar as cementing agent, so as to overcome the defect that multiple cementing agents are needed to be applied in the technique, thus having the characteristics of simple raw materials, low production cost and easy industrialization. The produced honeycomb-like activated carbon has the characteristics of large geometric area and specific surface area, high mechanical strength and the like, and can be applied for the treatment of waste gas and waste water and catalyst carrier.

Description

Technical field

[0001] The invention relates to a simple method for preparing honeycomb activated carbon from coal and coal tar, in particular to a preparation method using coal tar as both a low temperature and high temperature binder. Background technique

[0002] Honeycomb activated carbon is a new type of activated carbon. It not only has the original advantages of activated carbon (developed pores and large specific surface area), but also has small bed resistance, large geometric surface area, and short gas diffusion path due to its unique honeycomb structure. Strong dust resistance and other advantages. Based on the above advantages, honeycomb activated carbon can be used for wastewater treatment, gas purification and storage, catalyst carrier, etc. Its preparation and application have attracted widespread attention from domestic and foreign research and development personnel.

[0003] Currently reported honeycomb activated carbon preparation technologies mainly include ca...