Preparation method of catalytic viscosity reducer for thick oil aqua-thermolysis
A catalytic viscosity reduction and thermal cracking technology, applied in chemical instruments and methods, preparation of liquid hydrocarbon mixtures, petroleum industry, etc., can solve the problems of poor viscosity reduction effect and poor universality of ultra-heavy oil, and achieve good viscosity reduction effect. , quality improvement, the effect of a wide range of raw material sources
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Embodiment 1
[0020] The preparation method of the catalytic viscosity reducer that is used for hydrothermal cracking of heavy oil, it comprises the steps:
[0021] 1) selection of raw materials: by molybdenum salt: distilled water: concentration is the alkali solution of 1mol / L: dodecylbenzenesulfonic acid=1 gram: 10mL: 8mL: 15mL, choose molybdenum salt, distilled water, alkali solution and dodecane Base benzenesulfonic acid raw material, standby; Described molybdenum salt is molybdenum nitrate, and described alkaline solution is sodium hydroxide solution;
[0022] 2) Dissolve molybdenum salt in distilled water, heat in a water bath with stirring at 80°C, slowly add alkali solution dropwise, adjust the pH value to 9, and react for 15 minutes; then slowly add dodecylbenzenesulfonic acid dropwise, and keep the temperature (80°C) After reacting for 4 hours, the water was distilled off to obtain a catalytic viscosity reducer for hydrothermal cracking of heavy oil.
Embodiment 2
[0024] The preparation method of the catalytic viscosity reducer that is used for hydrothermal cracking of heavy oil, it comprises the steps:
[0025] 1) selection of raw materials: by molybdenum salt: distilled water: concentration is the alkali solution of 2mol / L: dodecylbenzenesulfonic acid=1.5 gram: 15mL: 9mL: 20mL, choose molybdenum salt, distilled water, alkali solution and dodecane Base benzene sulfonic acid raw material, standby; Described molybdenum salt is molybdenum sulfate, and described alkaline solution is potassium hydroxide solution;
[0026] 2) Dissolve molybdenum salt in distilled water, heat in a water bath with stirring at 100°C, slowly add alkali solution dropwise, adjust the pH value to 11, and react for 20 minutes; then slowly add dodecylbenzenesulfonic acid dropwise, and keep the temperature (100°C) After reacting for 5 hours, the water was distilled off to obtain a catalytic viscosity reducer for hydrothermal cracking of heavy oil.
Embodiment 3
[0028] The preparation method of the catalytic viscosity reducer that is used for hydrothermal cracking of heavy oil, it comprises the steps:
[0029] 1) selection of raw materials: by molybdenum salt: distilled water: concentration is the alkali solution of 3mol / L: dodecylbenzenesulfonic acid=1.8 gram: 18mL: 9mL: 25mL, choose molybdenum salt, distilled water, alkali solution and dodecane Base benzene sulfonic acid raw material, standby; Described molybdenum salt is ammonium molybdate, and described alkaline solution is calcium hydroxide solution;
[0030] 2) Dissolve molybdenum salt in distilled water, heat in a water bath with stirring at 110°C, slowly add alkali solution dropwise, adjust the pH value to 12, and react for 40 minutes; then slowly add dodecylbenzenesulfonic acid dropwise, and keep the temperature (110°C) After reacting for 5 hours, the water was distilled off to obtain a catalytic viscosity reducer for hydrothermal cracking of heavy oil.
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