ZSM-5 molecular sieve containing phosphorus in crystal, synthetic method and application thereof

• Main Authors: WANG PING, SHU XINGTIAN, LUO YIBIN, WANG DIANZHONG, MU XUHONG
• Format: Patent
• Language: Chinese; English
• Published: 11.01.2017
• Subjects: CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY; CHEMISTRY; COMPOUNDS THEREOF; CRACKING HYDROCARBON OILS; FUELS; INORGANIC CHEMISTRY; LUBRICANTS; METALLURGY; MINERAL WAXES; NON-METALLIC ELEMENTS; PEAT; PERFORMING OPERATIONS; PETROLEUM, GAS OR COKE INDUSTRIES; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVEHYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, ORGASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; TECHNICAL GASES CONTAINING CARBON MONOXIDE; THEIR RELEVANT APPARATUS; TRANSPORTING

The invention discloses a synthetic method of ZSM-5 molecular sieve containing phosphorus in crystal. The method comprises the following steps: (1) quaternary ammonium hydroxide and tetrabutylphosphonium hydroxide and an aluminium source are mixed, a mixture is treated in an enclosed reaction vessel for 0.1-5 hours at 50-190 DEG C and cooled, an intermediate product is obtained, and an aluminium source is an aluminium source without alkali metal ions; (2) the intermediate product in the step (1) and a silicon source and water are uniformly mixed in order to obtain a mixture; (3) the mixture in the step (2) is placed in the enclosed reaction vessel for hydrothermal crystallization and products are recycled. The synthesized ZSM-5 molecular sieve containing phosphorus in crystal can be used as an active component for catalysis of tetradecane with higher cracking conversion rate. 本发明公开了种晶内含磷ZSM-5分子筛的合成方法，包括以下步骤：(1)将季铵碱与四丁基氢氧化磷与铝源混合，混合物在密闭反应釜中于50～190℃下处理0.1～5小时后冷却，得到中间产物，所述的铝源为不含碱金属离子的铝源；(2)将步骤(1)的中间产物与硅源和水混合均匀得到混