Anaerobic dry distillation treatment method of waste paint slag
The invention provides an anaerobic dry distillation treatment method of waste paint slag. The method comprises the following steps: stirring and mixing: uniformly stirring and mixing waste paint slag and a catalyst, putting into a reaction device, and introducing inert gas; primary dry distillation...
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Format: | Patent |
Sprache: | chi ; eng |
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Zusammenfassung: | The invention provides an anaerobic dry distillation treatment method of waste paint slag. The method comprises the following steps: stirring and mixing: uniformly stirring and mixing waste paint slag and a catalyst, putting into a reaction device, and introducing inert gas; primary dry distillation cracking: raising the temperature to 100-120 DEG C, keeping the temperature for 5-15 minutes, and collecting a first cracking product; and secondary dry distillation cracking: raising the temperature to 280-360 DEG C, keeping the temperature for 20-80 minutes, and collecting a second cracking product and residual residues. According to the invention, waste paint slag generated in electronic industry is subjected to dehydration and light hydrocarbon removal in advance in an oxygen-free destructive distillation mode, then organic matter in the waste paint slag is converted into combustible liquid and gas, and remaining pyrolysis residues can enter a hazardous waste incinerator to be finally treated and disposed; and |
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