Processing method of vessel-outside pre-sulphuring hydrogenation catalyst
A technology of hydrogenation catalyst and treatment method, which is applied in physical/chemical process catalysts, chemical instruments and methods, catalyst activation/preparation, etc. Spontaneous combustion and easy operation
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Embodiment 1
[0027] This example is a hydrorefining catalyst after complete sulfidation outside the processor using the method of the present invention.
[0028]The catalyst used in Comparative Example 1 was subjected to the sulfurization process under the same conditions as Comparative Example 1. When the temperature drops to 60°C, ethanol is injected into the catalyst bed, and the sulfur content in the ethanol at the outlet of the bed is continuously analyzed. If the sulfur content is lower than 10ppm, stop feeding ethanol, use high-purity nitrogen (99.999v%) to purge the device and raise the bed temperature to 120°C. After constant temperature for 1 hour, the temperature of the device was lowered to room temperature, and deionized deoxygenated water was injected into the catalyst bed. Subsequently, the catalyst was unloaded and placed in a ground-mouth flask filled with deionized deoxygenated water, so that the water was completely submerged in the catalyst and stored for later use. A...
Embodiment 2
[0036] This example is a hydrocracking catalyst that has been fully sulfided outside the processor using the method of the present invention.
[0037] The catalyst used in Comparative Example 2 was subjected to the sulfurization process under the same conditions as Comparative Example 1. When the temperature drops to 130°C, inject gasoline with an end boiling point of 155°C into the catalyst bed, and continuously analyze the sulfur content in the gasoline at the outlet of the bed. If the sulfur content is lower than 10ppm, stop feeding gasoline, use high-purity nitrogen (99.999v%) to purge the device and raise the bed temperature to 170°C. After keeping the temperature constant for 1 hour, the temperature of the device was lowered to room temperature, and deoxygenated deionized water was injected into the catalyst bed. Subsequently, the catalyst was unloaded and placed in a ground-mouth flask filled with deoxygenated deionized water, so that the water was completely submerged...
Embodiment 3
[0046] This example is a hydrorefining catalyst after complete sulfidation outside the processor using the method of the present invention.
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