A kind of nano crude oil pour point depressant, preparation method and application method
A crude oil pour point depressant, application method technology, applied in chemical instruments and methods, drilling composition and other directions, can solve the problems of difficult utilization and limited use in arid areas, achieve broad market application prospects, enhance liquidity, source stable effect
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Embodiment 1
[0079] Method for preparing nano crude oil pour point depressant:
[0080] The first step: preparing silica with core-shell structure: mix silica, ethanol, ammonia, distilled water, tetraethyl silicate and silane coupling agent, and react for 12h to form silica with core-shell structure , And then centrifugal and drying the silica with a core-shell structure to obtain a silica with a core-shell structure; the components of the silica with a core-shell structure are shown in Table 1;
[0081] The second step: preparation of nano crude oil pour point depressant: dissolve the silica with core-shell structure prepared in the first step in a solvent, then add initiator and monomer, and react at 60℃ under the protection of nitrogen 6 Hours, made into nano crude oil pour point depressant. The initiator is azobisisobutyronitrile. The solvent is toluene. The monomer is stearyl methacrylate. The components of nano crude oil pour point depressant according to mass percentage are shown in ...
Embodiment 2
[0084] Method for preparing nano crude oil pour point depressant:
[0085] Step 1: Preparation of silica with core-shell structure: mix silica, ethanol, ammonia, distilled water, tetraethyl silicate and silane coupling agent, and react for 24 hours to form silica with core-shell structure , And then centrifugal and drying the silica with a core-shell structure to obtain a silica with a core-shell structure; the components of the silica with a core-shell structure are shown in Table 1;
[0086] Step 2: Preparation of nano crude oil pour point depressant: dissolve the silica with core-shell structure prepared in the first step in a solvent, then add initiator and monomer, and react at 70℃ under the protection of nitrogen 6 Hours, made into nano crude oil pour point depressant. The initiator is azobisisoheptonitrile. The solvent is chloroform. The monomer is stearyl methacrylate. The components of nano crude oil pour point depressant according to mass percentage are shown in Table...
Embodiment 3
[0089] Method for preparing nano crude oil pour point depressant:
[0090] Step 1: Prepare silica with core-shell structure: mix silica, ethanol, ammonia, distilled water, tetraethyl silicate and silane coupling agent, and react for 36 hours to form silica with core-shell structure , And then centrifugal and drying the silica with a core-shell structure to obtain a silica with a core-shell structure; the components of the silica with a core-shell structure are shown in Table 1;
[0091] The second step: preparation of nano crude oil pour point depressant: dissolve the silicon dioxide with core-shell structure prepared in the first step in a solvent, then add initiator and monomer, and react at 80℃ under the protection of nitrogen. Hours, made into nano crude oil pour point depressant. The initiator is benzoyl peroxide. The solvent is dichloromethane. The monomer is stearyl acrylate. The components of nano crude oil pour point depressant according to mass percentage are shown in...
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