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Measurement method for oil-water ash content in gas

A gas, oil and water technology, applied in the field of gas detection, can solve the problems of inability to measure industrial gas containing a large amount of moisture, inability to simultaneously measure gas oil content and ash content, and narrow application range.

Inactive Publication Date: 2014-04-23
CHINA UNIV OF PETROLEUM (BEIJING) +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the above two types of methods cannot measure industrial gases containing a large amount of moisture, and cannot simultaneously measure the oil content and ash content in the gas, so the application range is narrow

Method used

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  • Measurement method for oil-water ash content in gas
  • Measurement method for oil-water ash content in gas
  • Measurement method for oil-water ash content in gas

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0080] This embodiment provides a condensing device for measuring oil, water and ash content in gas, its structure is as follows figure 1 shown. The condensing device for determining the oil-water ash content in gas includes:

[0081] The first receiving bottle 2, the first ice-water mixing container 3, the second ice-water mixing container 5, the first condensing coil 6, the second receiving bottle 7, the second condensing coil 8, the third receiving bottle 9, cryogenic cooling Container 17, circulating cooling pump 10, wet gas flowmeter 11, barometer and thermometer 13, wherein:

[0082] The first receiving bottle 2 is provided with an input pipe, which is provided with a first valve 1, the first receiving bottle 2 communicates with the inlet of the first condensing coil 6 through a pipeline, and the first receiving bottle 2 is located at the first ice In the water mixing container 3;

[0083] The pipeline between the first receiving bottle 2 and the first condensing coi...

Embodiment 2

[0091] This embodiment provides a water separation device for measuring oil-water ash content in gas, its structure is as follows figure 2 shown. The water separating device for determining the oil-water ash content in gas includes:

[0092] Glass condensing tube 19, moisture measuring tube 20, Erlenmeyer flask 21 and heating furnace 22, wherein, glass condensing tube 19 is located at the top of moisture measuring tube 20, and the lower opening of the intermediate pipe of glass condensing tube 29 is connected to moisture measuring tube 20 Among them, the top of the intermediate pipe is sealed by a cotton ball 18, the Erlenmeyer flask 21 is arranged above the heating furnace 22, and the Erlenmeyer flask 21 communicates with the moisture measuring tube 20. The above-mentioned Erlenmeyer flask 21 is a ground-mouthed Erlenmeyer flask made of quartz.

Embodiment 3

[0094] This embodiment provides a method for measuring the oil, water and ash content of gas gas, which uses the condensing device for measuring the oil, water and ash content in gas gas of Example 1 and the water separator for measuring the oil, water and ash content in gas gas of Example 2. The method for measuring the content of oil, moisture and ash in gas, it may further comprise the steps:

[0095] 1. Gas condensation process:

[0096] Make the gas to be tested pass through the first valve 1 at 0-5°C and enter the first receiving bottle 2 for preliminary cooling;

[0097] Then, after the gas passes through the filter 23, it enters the first condensing coil 6 with a temperature of 0-5°C for secondary cooling, so that the mixture of oil, water and ash flows into the second receiving bottle 7;

[0098] Let the secondary cooled gas enter the second condensation coil 8 with a temperature of -10°C to -25°C for deep cooling, so that the mixture of oil, water and ash enters the...

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Abstract

The invention relates to a measurement method for oil-water ash content in gas, and the method comprises the following steps: after the gas is cooled and processed for several times, collecting a mixture of condensed oil content, moisture and ash content, and measuring the quality of the mixture; then, transferring the mixture to a conical flask, and measuring the quality of the mixture; connecting the conical flask with a moisture measurement device; measuring the quality of the moisture in the mixture; according to the quality, calculating the water content in the gas; continuously heating residue of which the moisture is measured until no liquid exists in the conical flask; then, transferring the conical flask to a muffle furnace to heat, taking out the conical flask, cooling, and measuring the content of ash in the gas; subtracting the water content and the ash content from the total mass; and calculating to obtain the oil content in the gas. By utilizing the method, the oil content, the water content and the ash content in the gas can be precisely measured once, and the method is good in repeatability; and an oil sample, a water sample and an ash sample in the collected gas can be further analyzed and tested.

Description

technical field [0001] The invention relates to a method for measuring the content of oil, water and ash in gas, belonging to the technical field of gas detection. Background technique [0002] The content of oil, water and ash in gas is an important index to evaluate the quality of gas products, and whether the measured values ​​of oil, water and ash in gas generated in industrial processing are accurate is crucial to the calculation of material balance and heat balance of industrial devices. Calculation, device improvement, gas upgrading and processing, and gas recycling have important guiding significance. The composition of gas is relatively complex, and the concentrations of oil, water and ash in local gas are not the same. At present, there are reports on methods for measuring oil content, water content and dust in gas, but there is no method that can accurately and Directly and simultaneously determine the oil, water and ash content in the gas. [0003] The oil cont...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N25/02
Inventor 李术元唐勋何继来马跃王勇
Owner CHINA UNIV OF PETROLEUM (BEIJING)
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