Process for coking full fraction oil hydrogenation refining

A technology of coking whole distillate oil and hydrofining, which is applied in the field of coking whole distillate oil hydrofinishing to directly obtain second-class diesel standard diesel oil. It can solve the problems of unsuitable treatment properties of coking whole distillate oil, etc., and increase the flexibility of device operation. performance, reduced operating costs, and improved diesel properties

Inactive Publication Date: 2005-06-08
CHINA PETROLEUM & CHEM CORP +1
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  • Abstract
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  • Application Information

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Problems solved by technology

This method uses a hydrocracking process, which is not suitable for processing coker whole distillate oil with poor properties

Method used

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  • Process for coking full fraction oil hydrogenation refining
  • Process for coking full fraction oil hydrogenation refining

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Embodiment 1～3

[0024] The raw materials used are shown in Table 1

[0025] Table 1 Properties of coking whole distillate oil

[0026] Oil product name Raw oil

[0027] Density (20℃), g / cm 3 0.8562

[0028] Distillation range, ℃

[0029] Initial Distillation / 10% 123 / 185

[0030] 30% / 50% 259 / 321

[0031] 70% / 90% 381 / 452

[0032] 95% / final distillation 471 / -

[0033] Alkaline nitrogen, μg / g 1230

[0034] Nitrogen, μg / g 2904

[0035] Sulfur, μg / g 10500

[0036] Freezing point, ℃ 17

[0037] Viscosity (40℃), mm 2 / s 6.725

[0038] For specific operation procedures, see the appendix figure 1 . The filling scheme of the coking full distillate hydrofining reactor is to install protective agent on the upper part, the content of molybdenum oxide is 7.0%, the content of nickel oxide is 1.5%, the pore volume is 0.55ml / g, and the specific surface is 180m 2 / g, the pore distribution (10-18nm) was 68%. The loading amount is 10% of the total catalyst volume loading amount. A disti...

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Abstract

The invention discloses a method for hydrofining coking whole distillate oil, which overcomes the problems in the prior art that high-quality clean diesel oil cannot be obtained by hydrofining coking whole distillate oil, and the investment and operation cost of separate hydrofining of diesel oil are large. The problem. The present invention fully relies on the original coking whole distillate oil hydrofining process, and uses the new hydrogen of the system for further hydrofining of diesel oil, so that diesel oil can be refined under ideal thermodynamic conditions and dynamic conditions, not only the product quality is high, but also the The flexibility, economy and practicability of the process, at the same time, the investment in equipment is less, the heat energy is fully utilized, and the operating cost is low. The method of the invention is suitable for the transformation of coking whole distillate oil hydrogenation unit or the construction of a similar flow process.

Description

1. Technical field [0001] The invention relates to a method for hydrofinishing of coking whole distillate oil, in particular to a method for hydrofinishing of coking whole distillate oil which can directly obtain Class II diesel standard diesel oil. 2. Background technology [0002] With the continuous development of the national economy, the market demand for petroleum products continues to increase, especially the demand for clean diesel oil increases faster. Correspondingly, with the continuous exploitation of crude oil, crude oil is gradually becoming heavier and inferior, and the quality of diesel directly obtained from secondary processing is even worse. Coking is a commonly used means of lightening residual oil. Its advantages are low investment, wide sources of raw materials, and raw materials with poor properties can also be processed. The disadvantage of coking is that the product contains impurities in the raw material and needs further processing. Coker whole d...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10G45/00
Inventor 郇维方单江锋王震佟德群李扬刘继华
Owner CHINA PETROLEUM & CHEM CORP
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