New application of molasses fermentation liquor, efficient and environment-friendly grey water scale-inhibiting dispersion agent and application in coal chemical industry grey water treatment process

Abstract

The invention discloses application of molasses fermentation liquor as a grey water scale-inhibiting dispersion agent in a coal chemical industry grey water treatment process, an efficient environment-friendly grey water scale-inhibiting dispersion agent and application of the efficient environment-friendly grey water scale-inhibiting dispersion agent in the coal chemical industry grey water treatment process. The efficient environment-friendly grey water scale-inhibiting dispersion agent comprises the following components in percentage by mass: 30-100% of molasses fermentation liquor (in terms of solid content); 0-50% of hydrolytic polymaleic anhydride (in terms of solid content); 0 to 50% of polyepoxysuccinic acid (in terms of solid content); and 0-50% of polyaspartic acid (in terms of solid content). The molasses fermentation liquor is used as a grey water scale-inhibiting dispersion agent in a coal chemical industry grey water treatment process, so that the method is green and pollution-free, the raw material and production cost is low, and the production process is high in safety; and the addition concentration does not need to be very high, the grey water treatment cost is reduced, the scale inhibition rate can be obviously improved, the discharge capacity is reduced, and the repeated utilization rate of grey water is improved.

Description

technical field [0001] The invention relates to the technical field of ash water treatment in coal chemical industry, in particular to a new application of molasses fermentation liquid, an efficient and environment-friendly gray water scale inhibitor dispersant and its application in the ash water treatment process of coal chemical industry. Background technique [0002] Coal gasification gray water treatment process includes black water cooling, heat recovery, dissolved gas removal, slag water separation and gray water recycling and other processes. Gray water has the characteristics of high temperature, high pressure, high turbidity, high hardness, high alkalinity, etc. Therefore, during its circulating operation, it is easy to produce deposition, scaling, corrosion and other adverse phenomena, which seriously affects the normal and stable operation of coal gasification equipment . [0003] In order to effectively slow down the impact of gray water scaling and corrosion o...

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Problems solved by technology

[0007] The first purpose of the present invention is to provide a new application of molasses fermentation liquid, to solve the existing gray water scale inhibitor dispersant production safety and environmental protection supervision requirements are high, and the production cost is high, the dosage concentration requirements are high, resulting in Its comprehensive use cost is relatively high

[0009] The second object of the present invention is to provide a kind of efficient and environment-friendly gray water scale inhibitor dispersant, to solve the existing problems of gray water scale inhibitor dispersant

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