Hydroconversion process of uncured Fisher-Tropsch process synthesized oil product

A technology of hydroconversion and torpedo synthesis, which is applied in the fields of hydrotreating process, petroleum industry, and hydrocarbon oil treatment, etc. It can solve the problems such as the complexity of hydrogenation process, achieve high olefin saturation rate, high hydrodeoxygenation rate, reduce The effect of reaction coking rate

Active Publication Date: 2007-10-31
SYNFUELS CHINA TECH CO LTD
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Problems solved by technology

The introduction of sulfur element in the process of hydro-upgrading of Fischer-Tropsch synthetic oil not only complicates the hydrogenation process, but also has potential environmental pollution

Method used

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  • Hydroconversion process of uncured Fisher-Tropsch process synthesized oil product

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Using Fischer-Tropsch synthetic oil as raw material, the catalyst installed in the first reactor is Pt / Al 2 o 3 , the content of Pt is 0.5wt%; the catalyst added in the second reactor is Ni-Mo / Al 2 o 3 , the metal contents of Ni and Mo are 8.0wt% and 1.2wt%, respectively, and the amount of catalyst added is calculated as metal. The Fe-based slurry bed Fischer-Tropsch synthetic oil is metered by a metering pump, mixed with hydrogen, and then enters the first reverse reactor R1. By controlling appropriate reaction conditions, the unsaturated olefins are hydrogenated and saturated under relatively mild conditions; The hydrogenated product enters the second reactor R2 for hydrodeoxygenation; the refined material can be separated to obtain products of different fractions such as naphtha, diesel fraction, and wax oil. The conversion rate of olefins was 100.0%, and the conversion rate of oxygenates was 95.0%. The process conditions are shown in Table 1.

[0023] ...

Embodiment 2～6

[0025] Embodiments 2 to 6 are based on Fe-based slurry bed Fischer-Tropsch synthesis of oil as raw material, carried out on a continuous fixed-bed reaction device, the operation process is the same as in Example 1, but the catalyst and reaction conditions used are changed, the specific operation The conditions and experimental results are shown in Table 2.

[0026]

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Abstract

The hydroconversion process of uncured Fischer-Tropsch process synthesized oil product adopts two-section hydrogenating reactor for pre-hydrogenating and deep hydrogenating separately. The reactant material is first pre-hydrogenated inside the first reactor at low temperature to convert the unsaturated olefin into corresponding saturated olefin; and then deeply hydrogenated and deoxygenated inside the second reactor. During the two reaction sections, uncuring hydrogenating catalyst is used. The said process can complete deep hydrorefining of Fischer-Tropsch process synthesized oil product in relatively mild technological conditions, and is especially suitable for the hydroconversion of Fischer-Tropsch process synthesized oil product with high olefin content and certain amount of oxygen bearing organic compounds.

Description

technical field [0001] The invention belongs to a technology for hydrogenation conversion of oil products, in particular to a technology for hydrogenation conversion of non-sulfurized Fischer-Tropsch synthetic oil products. Background technique [0002] Fischer-Tropsch synthetic oil is mainly composed of linear alkanes and olefins, but contains a certain amount of oxygenated compounds, the highest content of which can account for about 33wt% of the total, and the highest acid value can reach about 30mgKOH / g. The existence of acidic oxygen-containing compounds not only affects the stability of the oil, but also severely corrodes the equipment. Therefore, appropriate methods must be used to hydrofinish the Fischer-Tropsch synthetic oil to reduce the acid value of the oil and improve its quality. [0003] At present, industrial oil hydrofinishing catalysts are mainly aimed at petroleum and edible oils, and the hydrofinishing catalysts used generally use VIII group (such as Mo o...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10G65/06
Inventor 任杰李永旺王峰王雪峰姜建卫
Owner SYNFUELS CHINA TECH CO LTD
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