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Group composition analysis method for hydrocarbon series of residual oil and bitumen

An analysis method and family composition technology, applied in the direction of analysis of materials, material separation, measurement devices, etc., can solve the problems of inability to prepare enrichment segments, etc., and achieve the effects of low toxicity, good adaptability, and comprehensive characterization

Inactive Publication Date: 2005-06-22
SHANXI INST OF COAL CHEM CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But its biggest shortcoming is that it cannot prepare enriched fractions for further in-depth analysis and verification by infrared spectroscopy, nuclear magnetic resonance, and trace element analysis, which is necessary for the development of modern science.

Method used

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  • Group composition analysis method for hydrocarbon series of residual oil and bitumen
  • Group composition analysis method for hydrocarbon series of residual oil and bitumen
  • Group composition analysis method for hydrocarbon series of residual oil and bitumen

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] Example 1: No. 11# (asphalt-like), which is derived from the co-refining product of coal and catalytic cracking oil slurry. In the process, coal:oil=1:1, and iron-containing catalysts are used.

[0045] Weigh 1.614 grams of silica gel into the chromatography column, and then add 1.103 grams of alumina. 0.1103 g of the sample is placed in the chromatography column, and 0.5622 g of alumina is added. Washing and collection of alkanes in the sample: After the prepared chromatographic column is vertically fixed, an accurately weighed and dried segment receiving bottle is placed below it. Take 20 ml of n-heptane and add it in 4 portions. . Flushing and collection of aromatics in the sample: After n-heptane has collected the alkanes, change to another receiving bottle. Prepare 35 ml of n-heptane / dichloromethane (1 / 2.5) solution, add 7 times and collect the outflow aromatic hydrocarbon section. Washing and collection of colloid in the sample: After the aromatics section is collecte...

Embodiment 2

[0046] Example 2: Residue sample numbered 12#, which is the bottom of the kettle obtained by the distillation of cracked oil in an oil refinery

[0047] Weigh 1.700 grams of silica gel into the chromatography column, and then add 1.183 grams of alumina. 0.1211 g of the sample is placed in the chromatography column, and 0.5982 g of alumina is added. . Washing and collection of alkanes in the sample: After the prepared chromatography column is fixed vertically, an accurately weighed and dried segment receiving bottle is placed below it. Take 20 ml of n-heptane and add it in 4 portions. . Flushing and collection of aromatics in the sample: After n-heptane has collected the alkanes, change to another receiving bottle. Prepare 35 ml of n-heptane / dichloromethane (1 / 2.5) solution, add 7 times and collect the outflow aromatic hydrocarbon section. Washing and collection of colloid in the sample: After the aromatics section is collected, change to another receiving bottle. Prepare 30 ml of ...

Embodiment 3

[0048] Example 3: No. 13# (asphalt-like), which is the toluene-insoluble product of the co-refining of coal and catalytic cracking oil slurry. During the process, coal: oil = 1:1, and no catalyst is used.

[0049] Weigh 1.512 grams of silica gel into the chromatography column, and then add 1.233 grams of alumina. 0.10561 g of the sample is placed in the chromatography column, and 0.5822 g of alumina is added. . Washing and collection of alkanes in the sample: After the prepared chromatography column is fixed vertically, an accurately weighed and dried segment receiving bottle is placed below it. Take 20 ml of n-heptane and add it in 4 portions. . Flushing and collection of aromatics in the sample: After n-heptane has collected the alkanes, change to another receiving bottle. Prepare 35 ml of n-heptane / dichloromethane (1 / 2.5) solution, add 7 times and collect the outflow aromatic hydrocarbon section. Washing and collection of colloid in the sample: After the aromatics section is co...

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Abstract

A group composition analysis method to resid and asphalt hydrocarbon is to add a treated silica gel into a chromatographic post to be added with treated Al2O, weigh resid or asphalt accurately and put them into the chromatographic post then put Al2O in it. Normal heptane is put into the post and flown paraffinsection is collected, the matched solution of normal heptane and dichloromethane is put into the post to collect the flown aromatic section, the solution of matched by dichlormethane and THF is put in it to collect the gel section. The receiving bottles are completely extracted and weighed accurately, the increased weight of each is net for each preparation section and the result is got by compute.

Description

Technical field [0001] The invention belongs to a column liquid chromatographic analysis method, in particular to a method for analyzing the hydrocarbon group composition of residual oil and asphalt Background technique [0002] Coal and petroleum processing has a long history. The corresponding analysis of tar, heavy oil, and asphalt has also gone through a long process. The use of gas chromatography and high performance liquid chromatography for the light part of the product can be better solved, but it is not However, heavy residues, asphalt, etc. have always been difficult to solve. For heavy products such as residual oil and asphalt with more than a thousand compounds, the first thing to do is to solve the analysis of the hydrocarbon group composition. The so-called classification of group composition is mainly based on the characteristics of the functional groups of the compounds. Among them, only linear and branched compounds with carbon and hydrogen are alkanes; those wit...

Claims

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Application Information

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IPC IPC(8): G01N30/06G01N30/80G01N30/88
Inventor 张昌鸣刘振宇杨建丽
Owner SHANXI INST OF COAL CHEM CHINESE ACAD OF SCI
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