Patent
Binder-free spray forming technology for improving molecular sieve catalyst strength
Wei Zhang,Zhang Hua,Zhang Shuqin,Chen Gang,Pei Ting,Kang Yulong,Zhang Yuan,Liu Zhiling,Zhang Ju,Lu Yongbin +9 more
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TLDR
In this paper, a binder-free spray forming technology for improving the molecular sieve catalyst strength was proposed, and the results showed that the abrasive resistance of the catalyst is improved under the condition that binder is not added.Abstract:
The invention belongs to the technical field of catalysts, and particularly relates to a binder-free spray forming technology for improving the molecular sieve catalyst strength. The technology comprises the following steps that 1, dispersant is added in deionized water to form a dispersant solution, a molecular sieve catalyst is added in the dispersant solution, and slurry with the solid contentbeing 35-50% is formed; 2, an agate ball is added in the slurry, ball milling is conducted for 2-6 h, sieving is conducted, the agate ball is separated, and the separated slurry is preserved at the constant temperature of 25 DEG C; 3, the slurry obtained in step 2 is subjected to spray drying forming; 4, a product obtained in step 3 is dried in an air atmosphere of 100-150 DEG C, and then roastingis conducted. According to the forming technology, the abrasive resistance of the catalyst is improved, and on the condition that a binder is not added, the high abrasive resistance can still be kept.read more
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