Petroleum Processing and Petrochemicals ›› 2015, Vol. 46 ›› Issue (8): 34-39.
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Abstract: A clean process was realized by utilizing low cost, clean raw materials and new idea for hydrocracking catalyst production. This technology platform integrated clean peptizing agent, higher pH, low viscosity metal salt solution and modified molecular sieve resistant to acid. No nitrogen compounds were used during the catalyst preparation, resulting in zero emission of NOx and ammonia nitrogen. By optimizing hydrogenation metal species and the way of introduction, the total amount of metals and the bulk density are reduced by 20.0% and 6.5%, respectively, compared with the reference catalyst. The cost of raw materials is reduced by about ¥3.9×104/m3 catalyst, a drop of about 28%. The results of catalytic performance evaluation and stability test show that the new catalysts achieve the similar levels to those prepared by conventional methods and have good stability.
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http://www.sylzyhg.com/EN/Y2015/V46/I8/34