Process for preparing thick oil hydrothermally catalytic cracking viscosity reducer containing amphiphilic structure
A technology of thermal catalysis and viscosity reducing agent, applied in chemical instruments and methods, drilling compositions, etc., can solve the problems of ineffective on-site application, poor contact with crude oil, and high use temperature, and achieve wide use conditions, reduced viscosity, Efficient viscosity reduction effect
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Embodiment 1
[0014] Use 20 grams of low-cost aromatic sulfonic acid and 1.8 grams of iron oxide powder (particle size: 80-200 mesh) to react at 100 ° C for 2 hours. After the reaction is completed, dissolve it with 20 grams of acetone and filter. The filtered solid is unreacted oxide powder. Iron powder, put the filtrate into an oven, and dry it at 50°C to obtain a brown viscous liquid, which is a heavy oil hydrothermal catalytic cracking viscosity reducer (iron sulfonate chelate) containing an amphiphilic structure. Industrial production can be scaled up.
[0015] Put the aromatic sulfonate iron chelate viscosity reducer, water and heavy oil in a high-pressure reactor, and a hydrothermal catalytic cracking reaction occurs at 150-200°C, wherein the viscosity reducer concentration is 0.08% based on the quality of the entire system -0.2%, add more than 25% water. After the reaction, the viscosity reduction rate can reach more than 80%, and part of the colloidal asphaltene is cracked into sa...
Embodiment 2
[0017] Use 20 grams of low-cost aromatic sulfonic acid and 1.2 grams of iron powder (80-200 mesh in particle size) to react at 100 ° C for 2 hours. After the reaction is completed, dissolve with 20 grams of acetone and filter. The filtered solid is unreacted iron powder , put the filtrate into an oven, and dry it at 50°C to obtain a brown viscous liquid, which is a heavy oil hydrothermal catalytic cracking viscosity reducer (iron sulfonate chelate) containing an amphiphilic structure. Industrial production can be scaled up.
[0018] Put the aromatic sulfonate iron chelate viscosity reducer, water and heavy oil in a high-pressure reactor, and a hydrothermal catalytic cracking reaction occurs at 150-200°C, wherein the viscosity reducer concentration is 0.08% based on the quality of the entire system -0.2%, add more than 25% water. After the reaction, the viscosity reduction rate can reach more than 80%, and part of the colloidal asphaltene is cracked into saturated hydrocarbons...
Embodiment 3
[0020] A preparation method of a heavy oil hydrothermal catalytic cracking viscosity reducer containing an amphiphilic structure, which comprises the following steps:
[0021] 1). Select raw materials: Arylsulfonic acid and iron oxide powder are selected in parts by weight of aromatic sulfonic acid and iron oxide powder: 19 parts of aromatic sulfonic acid and 1.8 parts of iron oxide powder;
[0022] 2). React aryl sulfonic acid and iron oxide powder (particle size: 80-200 mesh) at 80°C for 3 hours. After the reaction is completed, dissolve it with acetone. The amount of acetone added is the weight of aryl sulfonic acid: weight of acetone = 1: 0.9 ; Filtration, the filtered solid is unreacted iron oxide or iron powder, the filtrate is placed in an oven, and dried at 80°C to obtain a brown viscous liquid that is a heavy oil hydrothermal catalytic cracking viscosity reducer containing an amphiphilic structure.
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