Corrosion inhibitor used for reforming device, and preparation method thereof
A reformer and corrosion inhibitor technology, which is applied in the fields of treatment equipment corrosion/fouling inhibition, petroleum industry, and hydrocarbon oil treatment, etc. Corrosion inhibition effect, slowing effect
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Embodiment 1
[0021] The corrosion inhibitor for reforming unit of the present invention includes an amine compounding agent, and the amine compounding agent is composed of 40% by weight of monoethanolamine, 40% by weight of diethanolamine and 20% by weight of triethanolamine.
[0022] The preparation method of corrosion inhibitor for reforming unit of the present invention comprises the following steps:
[0023] Take ethylene oxide and ammonia, the ratio of the amount of ethylene oxide to ammonia is 1:4, the reaction needs to be carried out under pressure, the operating pressure is 15Mpa, the temperature is 130°C, react for 2 hours, and then gradually Cool to room temperature to obtain the product amine complex agent, wherein monoethanolamine, diethanolamine and triethanolamine are respectively 40%, 40% and 20%.
Embodiment 2
[0025] The corrosion inhibitor for reforming unit of the present invention includes an amine compounding agent, and the amine compounding agent is composed of 50% by weight of monoethanolamine, 35% by weight of diethanolamine and 15% by weight of triethanolamine.
[0026] The preparation method of corrosion inhibitor for reforming unit of the present invention comprises the following steps: get oxirane and ammonia, ammonia is dissolved in water, the concentration in water is controlled at 50%, the amount of substance of oxirane and ammonia The ratio is 1:5, and the reaction needs to be carried out under pressure. Usually, the operating pressure is 16Mpa, the temperature is 150°C, the reaction is for 2 hours, and then gradually cooled to room temperature to obtain the amine complex agent, in which monoethanolamine 30%, di Ethanolamine 35%, triethanolamine 15%.
Embodiment 3
[0028] The corrosion inhibitor for reforming unit of the present invention includes an amine compounding agent and a synergist, and the weight ratio of the synergist to the amine complexing agent is 1:1;
[0029] The amine compounding agent is composed of 40% by weight of monoethanolamine, 45% by weight of diethanolamine and 15% by weight of triethanolamine;
[0030] The synergist includes glycerol and citric acid, and the weight ratio of glycerol and citric acid is 1:1.
[0031] The preparation method of corrosion inhibitor for reforming unit of the present invention comprises the following steps:
[0032] (1) Take ethylene oxide and ammonia, the ratio of the amount of ethylene oxide to ammonia is 1:4~5, the reaction needs to be carried out under pressure, usually the operating pressure is 15Mpa, the temperature is 150°C, the reaction 2 hours, then gradually cooled to room temperature to obtain an amine complex agent, wherein monoethanolamine was determined to be 40%, dietha...
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