Preparation method of ternary metal unsupported catalyst

• Main Authors: CAI YAORONG, WANG RONGHUI, YAO ZHIWEI, SHI YAN, WANG CHEN, LIU WENBAO, YANG SHUANG, RONG QINGSHAN, XU JIACUI
• Format: Patent
• Language: Chinese; English
• Published: 26.04.2017
• Subjects: CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY; CHEMISTRY; CRACKING HYDROCARBON OILS; FUELS; LUBRICANTS; METALLURGY; MINERAL WAXES; 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 relates to a preparation method of a ternary metal unsupported catalyst. The method selects two group VIB metal compounds as active component raw materials, and selects a nickel salt with different water solubilities as an assistant catalysis component raw material. The method comprises the following steps: mixing the active component raw materials with the an assistant catalysis component raw material to generate a precipitate; fully stirring a precipitate-containing suspension under certain conditions to complete a composite reaction; and standing the suspension at different ageing times, carrying out suction filtration after ageing, and carrying out a series of treatments on obtained filter cake to obtain the ternary metal unsupported catalyst with high particle fineness, large specific surface area and good HDS activity. The suitable soluble nickel source and the proper ageing time are selected to make the unsupported catalyst have a well-developed aperture structure and good reaction activi