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Method used for determining molecular composition of crude oil based on crude oil macroscopic properties

A crude oil and property technology, applied in the analysis of materials, flow characteristics, color/spectral characteristics measurement, etc., can solve problems such as restricting the refinement of production plans and technology upgrades, lack of availability, and long detection time.

Active Publication Date: 2017-04-19
SYSPETRO TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to factors such as high cost of testing equipment, complex testing technology, and long testing time, most oil refining and petrochemical companies currently do not have the ability to grasp the detailed molecular composition of crude oil, which limits the refinement of their production plans and technology upgrades

Method used

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  • Method used for determining molecular composition of crude oil based on crude oil macroscopic properties
  • Method used for determining molecular composition of crude oil based on crude oil macroscopic properties
  • Method used for determining molecular composition of crude oil based on crude oil macroscopic properties

Examples

Experimental program
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Effect test

Embodiment 1

[0081] Embodiment 1: The detailed molecular composition of crude oil is determined using a density meter, an elemental analyzer, and an Ernst distillation apparatus.

[0082] 1. According to the density, carbon content, hydrogen content, sulfur content, nitrogen content, oxygen content, Engler distillation curve, and K value of various crude oils in the world, construct a representative crude oil list. Among them, the nature of Engler's distillation curve is represented by 50% distillation temperature. Within the numerical span range of each property above, select 10 crude oils so that the properties of these 10 crude oils evenly cover the corresponding numerical span range. A total of 80 representative crude oils were selected for the above 8 macroscopic properties, covering major crude oil producing areas such as the Middle East, Northern Europe, Africa, South America, Russia, China, and North America.

[0083] 2. According to the crude oil list constructed in step 1, analy...

Embodiment 2

[0097] Embodiment 2: The present invention uses a near-infrared spectrometer to determine the detailed molecular composition of crude oil.

[0098] 1. Construct a representative crude oil list according to the four properties of various crude oils in the world, including density, sulfur content, Engler distillation curve, and near-infrared spectrum. Among them, the nature of Engler's distillation curve is represented by 10%, 30%, 50%, 70%, 90% distillation temperature. Within the numerical span range of each property above, select 100 crude oils so that the property of these 100 crude oils evenly covers the corresponding numerical span range. A total of 400 representative crude oils were selected for the above four macroscopic properties, covering major crude oil producing areas such as the Middle East, Northern Europe, Africa, South America, Russia, China, and North America.

[0099] 2. According to the crude oil list constructed in step 1, analyze the detailed molecular com...

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Abstract

The invention discloses a method used for determining molecular composition of crude oil based on crude oil macroscopic properties. The method comprises following steps: a database of crude oil macroscopic properties and molecular composition data is established, the macroscopic properties of crude oil to be detected are measured and similar data retrieval in the database is carried out, and the detailed molecular composition of the crude oil to be detected is determined based on similar crude oil molecular composition.

Description

[0001] The patent application for the present invention applied for the same utility model on the same day. technical field [0002] The invention belongs to the technical field of petroleum refining and petrochemical production. Background technique [0003] With the refinement and petrochemical industry's demand for refined production technology, it is becoming more and more important to master the detailed molecular composition of crude oil. The mastery of the detailed molecular composition of crude oil can design the production plan according to the specific molecules, maximize the value of each molecule, make the production more refined, and improve the economic benefits. However, the molecular composition of crude oil is complex. Using the current mass spectrometry chemical technology with the highest resolution, more than 200,000 molecular components in crude oil can be detected. At present, the detection of the detailed molecular composition of crude oil requires th...

Claims

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Application Information

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IPC IPC(8): G01N33/28G01N9/00G01N11/00G01N21/35G01N24/08G01N25/08
CPCG01N9/00G01N11/00G01N21/359G01N24/08G01N25/08G01N33/2823
Inventor 何恺源
Owner SYSPETRO TECH CO LTD
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