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Non-hydrogen dewaxing depressurizing distillation process and device

A distillation device, non-hydrogen technology, applied in the petroleum industry, base materials, lubricating compositions, etc., can solve the problems of low flash point of oil products, poor separation effect of lubricating base oil products, etc., and achieves short downtime, The operation flexibility is large and the effect of saving investment

Inactive Publication Date: 2010-08-11
新疆五家渠现代石油化工有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The technical problem of this set of equipment is that the separation effect of the lubricating oil base oil produced is not good, the light lubricating oil base oil and the heavy lubricating oil base oil are mixed together, and the flash point of the oil is low

Method used

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  • Non-hydrogen dewaxing depressurizing distillation process and device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] The wax oil feed rate is 2.54 tons / hour, the outlet temperature of the decompression furnace 5 is 401°C, the pressure of the decompression tower 7 is -0.087MPa, the flash point of the lubricating oil base oil minus the first line 8 is 138°C, and the flash point of the lubricating oil base oil of the minus second line 9: 140°C.

[0027] This example is the typical production data before transformation

Embodiment 2

[0029] The wax oil feed rate is 2.88 tons / hour, the outlet temperature of the decompression furnace 5 is 395°C, the pressure of the decompression tower 7 is -0.087MPa, the flash point of the product minus the first line 8 lubricating oil base oil is 152°C, and the flash point of the product minus the second line 9 lubricating oil base oil The point is: 197°C

[0030] This example is the typical production data after transformation

Embodiment 3

[0032] The wax oil feed rate is 3.45 tons / hour, the outlet temperature of the decompression furnace 5 is 395°C, the pressure of the decompression tower 7 is -0.087MPa, the flash point of the product minus the first line 8 lubricating oil base oil is 182°C, and the flash point of the product minus the second line 9 lubricating oil base oil The point is: 221°C

[0033] This example is the typical production data after transformation

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Abstract

The invention discloses non-hydrogen dewaxing depressurizing distillation process and device. The process has the following steps of: using wax oil as the raw material, carrying out non-hydrogen dewaxing, atmospheric distillation, flash evaporation and depressurizing distillation, and then producing a lube base oil. The device comprises a raw material oil pump (1), a reactor (2), an atmospheric furnace (3), an atmospheric tower (4), a depressurizing furnace (5), a flash evaporating tank (6) and a depressurizing tower (7). The depressurizing tower is provided with a side line, and the lube base oil can be pumped from the side line. The heavy lube base oil can be pumped from the bottom of the depressurizing tower. When used for reforming the old device, the invention has the advantages of high utilization rate of the old equipment, investment saving, large operation flexibility and short idle time, obviously enhances the production separation effect, and optimizes the product quality.

Description

technical field [0001] The invention belongs to the field of petroleum refining, and in particular relates to a non-hydrogen decondensation vacuum distillation process and a device thereof. Background technique [0002] There are many methods for producing lubricating oil base oil. CN1258721 discloses a non-hydrogen decondensation production process for lubricating oil. and other steps to produce lubricating oil base oil. Our factory has a set of equipment that uses wax oil as raw material to produce lubricating oil base oil through non-hydrogen decondensation, atmospheric distillation, and vacuum distillation. This set of equipment mainly includes reactors, atmospheric furnaces, atmospheric towers, reducing Pressure furnace, decompression tower, do not have absorption desorption tower, stabilizing tower mentioned in above-mentioned patent. The technical problem of this set of equipment is that the separation effect of the produced lubricating oil base oil product is not g...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10G55/00C10M101/00
Inventor 李建伟胡建和王新龙刘锦升包继敏
Owner 新疆五家渠现代石油化工有限公司
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