Application of beta-cyclodextrin polymer and grey water scale inhibition dispersant compound

Abstract

The application discloses an application of a beta-cyclodextrin polymer and a grey water scale inhibition dispersant compound, and the compound comprises the following components and has the following weight ratio in terms of solid content: 50-90% of the beta-cyclodextrin polymer, 0-50% of hydrolyzed polymaleic anhydride, 0-50% of polyepoxysuccinic acid sodium and 0-50% of polyaspartic acid. The application is used for coal gasification grey water scale inhibition dispersant, and the mechanism is that the beta-cyclodextrin polymer performs grey water scale inhibition through inclusion, chelation and lattice inhibition of metal ions. The grey water scale inhibition dispersant compound of the application contains the beta-cyclodextrin polymer, and the beta-cyclodextrin polymer is used in combination with the hydrolyzed polymaleic anhydride, the polyepoxysuccinic acid sodium or the polyaspartic acid. Since the combined materials are all amphiphilic molecules with hydrophilic parts and hydrophobic parts, a variety of supramolecular aggregation systems, namely a self-assembly system of the "supramolecular cyclodextrin amphiphilic molecule", are formed, and the beta-cyclodextrin polymer can better play the scale inhibition role.

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