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

Method for analyzing free hydrocarbon compounds in coke inclusion

A technology of inclusions and free hydrocarbons, applied in the direction of material separation, analysis materials, measurement devices, etc., can solve the problems of difficult composition analysis of biomarker compounds

Pending Publication Date: 2022-01-04
PETROCHINA CO LTD
View PDF0 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] An object of the present invention is to provide a method capable of realizing the analysis of free hydrocarbons in coke inclusions, effectively solving the problem of difficult composition analysis of trace biomarker compounds in highly evolved petroleum source rocks and bitumen

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
  • Method for analyzing free hydrocarbon compounds in coke inclusion
  • Method for analyzing free hydrocarbon compounds in coke inclusion
  • Method for analyzing free hydrocarbon compounds in coke inclusion

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0053] This example provides a method for analyzing free hydrocarbons in coke inclusions, which is used to analyze hydrocarbons in industrial petroleum coke coke inclusions, including the following steps:

[0054] 1) Weigh 0.5g of industrial petroleum coke (containing coke inclusions, belonging to one of the samples of coke inclusions), and grind it to 80 mesh; then, use dichloromethane (dichlorohexane and industrial petroleum coke The coke ratio is: 50mL: 1g ) was extracted for 6 hours to remove possible pollution to obtain a pretreated coke inclusion sample (raffinate);

[0055] GC-MS quantitative analysis was carried out on the extract, and the results were as follows:Figure 1A shown;

[0056] 2) Dissolve molybdenum sulfide in methanol-water (volume ratio of methanol to water: 2:1) mixed solvent (the ratio of molybdenum sulfide to mixed solvent is: 1g:3mL), and then mix with the treated coke inclusion sample Mixing (the mass ratio of the treated coke inclusion sample to m...

Embodiment 2

[0065] This example provides a method for analyzing free hydrocarbons in coke inclusions, which is used to analyze biomarker compounds in geological coke inclusions in a certain area of ​​Sichuan Basin, including the following steps:

[0066] 1) Weigh 20g of Sichuan Basin source rock samples (containing coke inclusions, belonging to one of coke inclusion samples), and grind them to 200 mesh; then, use dichloromethane (dichlorohexane and The ratio of industrial petroleum coke is: 50mL:20g) extraction for 6 hours to remove possible pollution, to obtain pretreated coke inclusion samples;

[0067] GC-MS quantitative analysis was carried out on the extract, and the results were as follows: Figure 2A , Figure 2C shown;

[0068] 2) Dissolve molybdenum sulfide in methanol-water (volume ratio of methanol to water: 2:1) mixed solvent (the ratio of molybdenum sulfide to mixed solvent is: 1g:3mL), and then mix with the treated coke inclusion sample Mixing (the mass ratio of the treat...

Embodiment 3

[0074] This example provides a method for analyzing free hydrocarbons in coke inclusions, which is used to analyze biomarker compounds in geological coke inclusions in a certain area of ​​Sichuan Basin.

[0075] According to the same method as in Example 2, the biomarker compounds in the coke inclusions in this example were analyzed;

[0076] For extract analysis results see Figure 3A , Figure 3D ; The analysis results of free hydrocarbons in coke inclusions can be found in Figure 3B , Figure 3E , and the quantitative results are shown in Table 2.

[0077] Saturated hydrocarbon gas chromatography mass spectrometry quantitative results in Table 2 embodiment 3, comparative example 1

[0078]

[0079]

[0080]

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

No PUM Login to View More

Abstract

The invention provides a method for analyzing free hydrocarbon compounds in a coke inclusion. The method comprises the following steps: 1) loading molybdenum sulfide on a coke inclusion sample; 2) carrying out hydrogenation reaction on the molybdenum sulfide-loaded coke inclusion sample obtained in the step 1); 3) separating saturated hydrocarbon in the hydrogenation reaction product obtained in the step 2); and 4) analyzing the saturated hydrocarbon separated in the step 3). The method can realize analysis of free hydrocarbon compounds in the coke inclusion, and effectively solves the problem of difficulty in composition analysis of trace biomarker compounds in high-evolution petroleum hydrocarbon source rocks and asphalt at present.

Description

technical field [0001] The invention belongs to the technical field of petroleum composition analysis, in particular to a method for analyzing free hydrocarbon compounds in coke inclusions. Background technique [0002] Petroleum undergoes free radical reactions under high temperature conditions, generating gas and coke. A small amount of original petroleum hydrocarbon molecules can be sequestered during coke formation. Due to the low concentration of free radicals in the isolated environment, the original petroleum hydrocarbon molecules sequestered in coke have high thermal stability. [0003] Under geological conditions, high maturity causes a large amount of biomarker compounds in petroleum source rocks or bitumen to decompose, and it is difficult to identify oil sources by analyzing the composition of biomarker compounds in petroleum source rocks or bitumen during later exploration. In practical applications, biomarker compounds in petroleum source rocks or bitumen are...

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
IPC IPC(8): G01N30/88
CPCG01N30/88G01N2030/8854
Inventor 朱光有张亚和张未来王萍王萌陈振涛常伟峰史权
Owner PETROCHINA CO LTD