It is of great importance to deeply understand the engineering scale-up process of synthesis of zeolite in both fundamental

research and industrial applications. Here we report high-quality ZSM-22 nanocrystals synthesized from industrial raw

materials by adding ZSM-22 seed at 20-L scale. The optimal synthesis conditions and the infl uence of seed during the

synthesis of ZSM-22 using industrial materials are investigated. The role of the seed in the zeolite synthesis is to promote

nucleation and the quality of ZSM-22. From the results of XRD patterns, N 2 sorption, 27 Al NMR spectra, SEM image, TEM

image, and NH 3 -TPD profi les characterization, it is found that adding seed is an eff ective method for synthesis of ZSM-22

using the industrial raw materials. A successful synthesis of ZSM-22 nanocrystals is proved with two diff erent silica sol as

indicated by the XRD patterns. High-quality ZSM-22 nanocrystals are successfully synthesized by a seeded approach and

this synthesis can be scaled up to a 20-L reactor without obvious change in the zeolite properties and exhibits comparable

catalytic performance with commercial ZSM-22 in butanol to hydrocarbon reaction.