Production method for shell-based carbon molecular sieve

Abstract

The invention discloses a production method for a shell-based carbon molecular sieve, which includes the production steps of a proportioning of raw materials, b drying, c fine crushing, d acid-washing, e secondary drying, f forming by extruding to strips, g high-temperature nitrogen-based carbonization and h high-temperature nitrogen-based hole-adjusting processing. The production method for the shell-based carbon molecular sieve uses coconut shells as raw materials to produce the carbon molecular sieve and achieves waste utilization of the coconut shells. Meanwhile, compared with a traditional production method for a carbon molecular sieve, the production method for the shell-based carbon molecular sieve is simple in process of production process and low in production cost and has superior performances in terms of produced nitrogen concentration, produced nitrogen amount, recovery rate, compression strength and the like.

Description

technical field [0001] The invention relates to a production method of nitrogen-making carbon molecular sieves, in particular to a preparation method of fruit shell-based carbon molecular sieves. Background technique [0002] There are a large number of coconut trees planted in the south of our country. Coconut juice and coconut meat are natural foods rich in nutrition, which can be made into coconut milk, shredded coconut, food spices, etc. But most of the coir shells of coconut fruit are discarded by people, and need a large amount of manpower, material resources and financial resources to be processed, generally carried out incineration, which will also cause environmental pollution. [0003] Carbon molecular sieve is a new type of activated carbon that almost only contains uniform micropores with a diameter of several angstroms. This pore characteristic can endow nitrogen-making carbon molecular sieve with selective adsorption performance according to its pore size and ...

AI Technical Summary

Problems solved by technology

However, the method for preparing carbon molecular sieves from coconut shells as a raw material is relatively rough and unsatisfactory. How to improve the existing method of preparing carbon molecular sieves using coconut shells as raw materials to effectively improve the quality of the produced carbon molecular sieves, become a problem to be solved urgently by those skilled in the art