Unlock instant, AI-driven research and patent intelligence for your innovation.

Naphtha hydrogenation reaction system apparatus and hydrogenation reaction method

A hydrogenation reaction and system device technology, which is applied in the petroleum industry, hydrogenation treatment process, and hydrocarbon oil treatment, can solve the problems of complex process and coking that cannot effectively play a role, and achieve large deposition volume, simple structure and low investment. little effect

Active Publication Date: 2013-02-06
CHINA PETROLEUM & CHEM CORP +1
View PDF12 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

US4,113,603 reports the use of a two-stage hydrorefining method to treat dienes and sulfides in pyrolysis gasoline. The first stage uses a nickel-tungsten catalyst to remove mercaptans, and the second stage uses a precious metal palladium catalyst to remove dienes. It is more complicated and cannot effectively play a role in coking due to factors other than dienes

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Naphtha hydrogenation reaction system apparatus and hydrogenation reaction method
  • Naphtha hydrogenation reaction system apparatus and hydrogenation reaction method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1 and comparative example 1

[0036] Coking naphtha hydrorefining process. Coked naphtha is mixed with hydrogen and heated to 230°C in a heating furnace, and then enters the decoking tank and then enters the hydrogenation reactor. The hydrogenation catalyst FH-40A is a commercial hydrogenation refining catalyst developed and produced by Sinopec Fushun Petrochemical Research Institute. The properties of raw materials are shown in Table 1, and the operating conditions and results are shown in Table 2. The difference of the comparative example is that no decoking tank is provided.

[0037] Table 1 Raw oil properties.

[0038] raw material coker naphtha Distillation range, ℃ 36～192 Sulfur, μg / g 4960 Nitrogen, μg / g 126 Bromine value, gBr / (100mL) 48

[0039] Table 2 Operating conditions and product properties.

[0040] Example 1 Comparative example 1 Reaction hydrogen pressure, MPa 4.0 4.0 Hydrogen oil volume ratio 800:1 800:1 volumetri...

Embodiment 2 and comparative example 2

[0043] Catalytic cracking heavy naphtha selective hydrodesulfurization process. Catalytic cracking naphtha adopts commercial AFS-12 catalyst (produced by Petroleum University), at a pressure of 0.5MPa, a temperature of 35℃~45℃, and a volume space velocity of 2.0h -1 , Deodorization is carried out under the condition of gas-oil volume ratio (air / gasoline) 4:1. The deodorized product is subjected to fractionation, and the fractionation point is 70°C to obtain catalytically cracked heavy naphtha. The catalytically cracked heavy naphtha is mixed with hydrogen and heated to 250°C in a heating furnace, and then enters the decoking tank for decoking and then enters the hydrogenation reactor. Hydrogenation catalyst FGH-11 is a commercial selective hydrodesulfurization catalyst developed and produced by Sinopec Fushun Petrochemical Research Institute. The properties of raw materials are shown in Table 3, and the operating conditions and results are shown in Table 4. The difference of...

Embodiment 3 and comparative example 3

[0049] Pre-hydrogenation of straight-run naphtha provides feedstock for catalytic reforming. Straight-run naphtha is mixed with hydrogen and heated to 300°C in a heating furnace, and then enters the decoking tank for decoking and then enters the hydrogenation reactor. Hydrogenation catalyst FH-40C is a commercial hydrogenation refining catalyst developed and produced by Sinopec Fushun Petrochemical Research Institute. The properties of raw materials are shown in Table 5, and the operating conditions and results are shown in Table 6. The difference of the comparative example is that no decoking tank is provided.

[0050] Table 5 Main properties of straight-run naphtha.

[0051] raw material straight run naphtha source Blended Straight Run Naphtha Density (20℃), g / cm 3 0.7348 Sulfur content, μg / g 800 Nitrogen content, μg / g 2.8

[0052] Table 6 Operating conditions and results.

[0053] Process conditions Example 3 Compa...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
diameteraaaaaaaaaa
thicknessaaaaaaaaaa
Login to View More

Abstract

The invention discloses a naphtha hydrogenation reaction system apparatus and a hydrogenation reaction method. The apparatus comprises a material-feeding system, a heating furnace, a fixed bed hydrogenation reactor and a separating system for hydrogenation reaction products. The device also comprises at least one coke-removing tank. The material-feeding system is communicated with the inlet of the heating furnace through pipelines; the outlet of the heating furnace is communicated with the coke-removing tanks through the pipelines; the coke-removing tanks are provided with two or more, and pipelines and valves which are arranged on the two or more coke-removing tanks are used for switching. In the naphtha hydrogenation reaction method, naphtha raw materials are hydro-refined at a proper condition by using the above apparatus. Compared with a conventional method, the apparatus and the method provided by the invention can economically and effectively prolong the running period of the naphtha hydrogenation apparatus.

Description

technical field [0001] The invention relates to a naphtha hydrogenation reaction system device and a hydrogenation reaction method, in particular to a hydrogenation reaction system device and a hydrogenation reaction method which prolong the operation cycle of the naphtha hydrogenation reaction system device. Background technique [0002] Naphtha (that is, gasoline fraction) is an important gasoline raw material and chemical raw material, mainly used to produce various grades of gasoline fuel, catalytic reforming to produce aromatics (or high-octane gasoline blending components) raw materials, steam cracking or catalytic Cracking to produce ethylene, propylene, butene and other chemical raw materials, as well as raw materials for hydrogen production. Naphtha is generally derived from straight-run naphtha obtained from petroleum distillation, and naphtha obtained from secondary processing, such as coking naphtha, catalytic cracking naphtha, cracking naphtha, etc. The various...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): C10G67/02
Inventor 关明华彭德强齐慧敏李欣王明星王岩姜阳刘杰
Owner CHINA PETROLEUM & CHEM CORP