A combined physical and chemical activation device for biocoke

Abstract

The invention belongs to the field of biocoke activating devices and in particular to a physical and chemical combined activating device for biocoke. The physical and chemical combined activating device for biocoke comprises an activating chamber and an activator premixing chamber. The activating chamber is of a hollow structure, a feeder is arranged on the top of the activating chamber, and a heat supply flue and an activator channel are arranged in the bottom; the activator premixing chamber is arranged in the hollow structure, the outer wall of the activator premixing chamber is in a cylindrical shape provided with a plurality of pores, and a spiral fin is also arranged on the cylindrical outer wall, so that biocoke supplied to the hollow structure under self gravity and rotary driving of the activator premixing chamber moves from top to bottom so as to be in full contact with high temperature flue gas containing a physical activator and a chemical activator, so that a whole activating process is finished. The device provided by the invention can further realize physical and chemical activation of the biocoke and has the advantages of being stable to operate, wide in adaptability of raw materials and easy to control scale.

Description

technical field [0001] The invention belongs to the field of biological coke activation devices, and more specifically relates to a combined physical and chemical activation device for biological coke. Background technique [0002] Biomass pyrolysis polygeneration technology can simultaneously produce high calorific value biogas, biocoke, wood tar and wood acetic acid, which has significant economic benefits and has greatly promoted the development of the biomass energy industry. As one of the three major products of biomass pyrolysis polygeneration, biomass coke is an inexpensive adsorbent that can be applied to water treatment, contaminated soil remediation, air purification, CO 2 Capture, flue gas desulfurization and denitrification, etc., have a wide range of industrial applications. Improving the adsorption performance of biocoke and increasing its added value is an important driving force to promote the large-scale industrialization of biomass pyrolysis polygeneration...

AI Technical Summary

Problems solved by technology

At present, the method of improving the surface properties of biocoke is mainly a single physical activation or chemical activation method, and the commonly used physical activation agent is CO 2 and H 2 O, commonly used chemical activators are KOH, K 2 CO 3 ; This kind of activation method only focuses on improving the specific surface area and porosity of biocoke, while ignoring its surface chemical characteristics, and the improvement of its adsorption performance is not high.

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