CN204719019U - A kind of new-type greasy filth compound mensuration device - Google Patents

Abstract

The utility model discloses a novel oil sludge component measuring device, which comprises a round bottom flask with a wide mouth and a long neck, a sample tube, a receiver, and a condensation tube. The lower end of the moisture receiving pipe is provided with a spherical valve for releasing the received liquid in the moisture receiving pipe, wherein the upper part of the moisture receiving pipe is sealed with the condensation pipe, and the end of the branch pipe is connected with the wide mouth and long neck The round-bottomed flask is sealed and connected; the sample tube is fixed inside the wide-necked long-necked round-bottomed flask, and is located at the upper end of the neck of the flask for filtering the solvent flowing out of the receiver. The utility model provides a device capable of measuring water, oil, mud and asphaltene in aged oil sludge for the first time. Oil, silt and asphaltenes are separated and the contents of these four components are accurately measured.

Description

A new type of oil sludge component measuring device

technical field

The utility model relates to an oil sludge component measuring device.

Background technique

A large amount of waste oil sludge will be produced in the process of oil extraction, storage, production and processing. It is reported that every 500 tons of crude oil produces 1 ton of oil sludge, and my country's petroleum industry produces about 3 million tons of various oil sludge every year. Oil sludge is a mixture containing petroleum hydrocarbons, water, inorganic solids, etc. It is a high-risk pollutant. my country has included oil sludge in the "National Hazardous Waste Catalog", my country's "Solid Waste Environmental Pollution Prevention Law" and "National The Cleaner Production Promotion Law requires that oil sludge must be treated in a harmless manner; at the same time, because oil sludge contains certain petroleum hydrocarbons, oil sludge is also a precious energy resource. Therefore, the research on oil sludge recycling and harmless treatment technology is a hot spot that everyone pays attention to in recent years. At present, sludge treatment technologies mainly include solvent extraction method, thermochemical washing method, coking treatment method, thermal desorption treatment method, etc. The selection of sludge treatment technology and the difficulty of sludge treatment are closely related to the composition of sludge.

The composition of oil sludge is generally expressed as water content, oil content, and solid (mud) content. The oil composition in oil sludge is generally expressed by four components, namely saturated (alkanes), aromatics, colloids, and asphaltenes. Generally, the substances in petroleum that are insoluble in low-molecular (C5-C7) n-alkanes but soluble in hot benzene are called asphaltenes, and those that are soluble in both benzene and low-molecular (C5-C7) n-alkanes The substance is called soluble, and soluble includes saturated, aromatic and colloid. When the sludge oil content is high, it is suitable to use solvent extraction to treat the sludge, but the choice of solvent is related to the oil composition in the sludge, that is, the content of asphaltene in the sludge is high, and the solvent with high aromaticity should be selected. When the oil content of the sludge is low, the sludge can be treated by thermochemical washing method, but the asphaltene content in the sludge affects the difficulty of oil recovery in the sludge, and the difficulty of washing and separating oil-sand is more difficult with more asphaltene. When the oil content in the oil sludge is high and the water content is low, the coking method and thermal desorption method are suitable, but when the asphaltene content in the oil sludge is high, the amount of coke (coke with low economic value) generated is large, light oil The amount is low, which affects the economic benefits of sludge treatment. Therefore, the oil content of the sludge and the asphaltene content in the oil have a significant impact on the selection of sludge treatment methods and the economic benefits of treatment.

At present, the oil content, water content, solid content and other composition analysis methods of oil sludge mainly include solvent extraction-gravimetric method, high temperature gravimetric method, solvent extraction spectrophotometry, etc. Other methods are needed to analyze the content of asphaltene in oil sludge. Solvent extraction-gravimetric method, that is, after using organic solvent to extract the oil in the mud and sand, volatilize and remove the solvent and weigh to obtain the oil content, dry and weigh the residual mud and sand to obtain the mud content or solid content, and the difference is the water content; or at 105℃～ Dry the oil sludge with constant weight at 110°C, measure the weight loss to obtain the water content of the oil sludge, extract the mud and sand with a solvent, volatilize and remove the solvent and weigh to obtain the oil content, and the rest is the mud content. High-temperature gravimetric method, that is, the oil sludge is calcined at 500°C to 600°C to a constant weight, and the solid content is measured. The water content is analyzed by the carrier reflux method or the water content is measured by the weight loss on drying at 105°C to 110°C, and the oil content is the sample. The amount after removing water and mud. Solvent extraction spectrophotometry, that is, after oil sludge is extracted with petroleum ether, the oil content in the solvent is analyzed with a spectrophotometer, so as to obtain the oil content of the sludge. The composition of asphaltenes in petroleum is mainly determined by the difference in dissolving ability of asphaltene between low-molecular normal alkanes (such as n-heptane) and light aromatics (such as benzene or toluene).

Generally, the oil content of tank bottom sludge is higher than that of ground sludge, and the oil content of tank bottom sludge is generally 15-50% (water content, solid content are 30-85% and 5-46% respectively). Generally, the petroleum composition in oil sludge is 40-52% saturated components (alkanes), 28-31% aromatic components, 7-22.4% colloids, and 8-10% asphaltenes. Therefore, under normal circumstances, the asphaltene content of oil sludge is very small, which has little effect on oil sludge treatment. During the storage of oil sludge, due to (1) the volatilization of light hydrocarbon components and water, and (2) the conversion of colloids into asphaltene, the water content of the sludge decreases, the oil content increases, and the asphaltene content in the petroleum increases, and the sludge ages. Composition analysis (including asphaltene content) analysis of aged oil sludge is the technical basis for treating aged oil sludge. Due to the high content of asphaltene in general heavy oil, it is also necessary to analyze the composition of the sludge including the content of asphaltene for heavy oil sludge.

Utility model content

The technical problem to be solved by the utility model is to overcome the existing defects and provide a novel component measuring device for measuring the contents of water, oil, mud and asphalt in aged oil sludge.

In order to solve the above technical problems, the utility model provides the following technical solutions:

A new type of oil sludge component determination device, including a wide-mouth long-necked round-bottomed flask, a sample tube, a receiver, and a condensation tube. The lower end of the receiving pipe is provided with a spherical valve for releasing the received liquid in the water receiving pipe,

in,

The upper part of the moisture receiving pipe is sealed connected with the condensation pipe, and the end of the branch pipe is sealed connected with the wide-mouth long-necked round-bottomed flask;

The sample tube is fixed inside the wide-mouth long-necked round-bottomed flask, and is located at the upper end of the neck of the flask, and is used to filter the solvent flowing out of the receiver.

Preferably, a scale is provided on the moisture receiving tube.

Further preferably, the scale range of the moisture receiving tube is 0-10ml, and the accurate reading is 0.1ml.

As a preferred solution, the device also includes an adapter and a cross hanging basket, wherein,

The branch pipe of the receiver is sealed and connected to the wide-mouth long-necked round-bottom flask through an adapter, the small side of the adapter is sealed and connected to the end of the branch pipe, and the large side of the adapter is sealed and connected to the long-necked round-bottom flask ;

The lower end of the large side of the adapter is a cone, and an opening is arranged on the side of the cone, and the cross hanging basket is hung under the adapter through the opening;

The sample tube is placed in the cross hanging basket and fitted with the hanging basket,

Preferably, the cross hanging basket is composed of a cross tube frame part and a lifting ear part, the cross tube frame part is used to install the sample tube, and the lifting ear part is hung at the opening.

Further preferably, 8 openings are uniformly arranged on the adapter. The hole diameter on the adapter is 3mm.

The preferred specific connection method is: the outer diameter of the branch pipe of the receiver is connected with the inner diameter of the small side of the adapter, and the outer diameter of the larger side of the adapter is connected with the inner diameter of the long-necked round bottom flask. The grinding port is connected; the upper port of the moisture receiving pipe of the receiver is connected with the grinding port of the condensation pipe.

Preferably, the flask capacity of the wide-mouth long-necked round-bottom flask is 500-1000mL, and the neck length is twice the diameter of the spherical bottle belly. Optimally, the flask capacity of the wide-mouth long-necked round-bottom flask is 500mL, and the length of the neck is 220mm.

Put the solvent into the wide-necked flask and the sludge sample into the sample tube. Petroleum ether is boiled and cooled to reflux, and the sludge in the sample tube is rinsed. The soluble components (saturated components, aromatic components, colloids) in the sludge are dissolved in the solvent, and the solvent reduces the viscosity of the sludge, so that the water in the sludge can be absorbed. Released, the solvent and water dissolved with soluble matter pass through the sample tube made of filter paper and fall into the flask, while the mud sand in the oil sludge and the asphaltene in the oil are intercepted in the sample tube. The water can be boiled and evaporated together with the solvent, and after condensation, the condensate flows into the water receiving tube with graduations in the receiver. Because the density of water is greater than that of sherwood oil, moisture can settle to the lower part of the receiver's moisture receiving tube, and the solvent on the receiver's moisture receiving tube top returns to the flask. With the continuous reflux and distillation, the soluble matter in the oil sludge is continuously washed out, and the water is continuously carried out by petroleum ether and continuously settles to the lower part of the left pipe of the moisture receiver. According to the amount of sludge and the volume of steamed water, the water content of sludge can be calculated. Take out the sample tube and weigh to obtain the total amount of the sample tube, silt and asphaltene.

The utility model provides a device capable of measuring water, oil, mud and asphaltene in aged oil sludge for the first time. Oil, silt and asphaltenes are separated and the contents of these four components are accurately measured. At the same time, the utility model has a compact device, fewer instruments and equipment required in the whole analysis process, simple and convenient operation, and small error. It overcomes the difficult problem of complex operation caused by the requirement of standard samples in the spectrophotometric method in the prior art, and the difficult problems of complicated steps and complicated calculations in the high-temperature gravimetric method and solvent extraction method.

Description of drawings

The accompanying drawings are used to provide a further understanding of the utility model, and constitute a part of the description, and are used to explain the utility model together with the embodiments of the utility model, and do not constitute a limitation to the utility model. In the attached picture:

Fig. 1 is the structural representation of the utility model embodiment 1;

Fig. 2 is the structural representation of cross hanging basket in the utility model;

Fig. 3 is the left view of Fig. 2;

Fig. 4 is the bottom view of Fig. 2;

Fig. 5 is a structural schematic diagram of the transfer joint of the utility model;

Fig. 6 is the bottom view of Fig. 5;

Fig. 7 is the structural representation of the receiver in the utility model;

Fig. 8 is the structural representation of condensation pipe in the utility model;

In the figure, 1--wide-mouth long-necked round-bottom flask, 2--sample tube, 3--receiver, 31-moisture receiving tube, 32--branch, 33--spherical valve, 4--condensing tube, 5 --cross hanging basket, 51--cross pipe frame part, 52--hanging ear part, 6--transfer joint, 61--opening.

Detailed ways

The preferred embodiments of the present utility model are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described here are only used to illustrate and explain the present utility model, and are not intended to limit the present utility model.

Example 1:

As shown in Figure 1-8, a new component determination device is composed of 6 parts, namely wide-mouth long-necked round-bottom flask 1, sample tube 2, receiver 3, condenser tube 4, cross hanging basket 5, rotary Connector 6. Described receiver 3 is connected by moisture receiving pipe 31 and the branch pipe 32 that is positioned at the top of moisture receiving pipe and forms (as shown in Figure 7), and described moisture receiving pipe 31 is provided with scale, scale range 0～10ml, accurate reading is 0.1ml, the lower port of the moisture receiving tube is provided with a ball valve 33 for releasing the received liquid in the moisture receiving tube.

The condenser pipe 4 and the receiver 3 are connected by a grinding port (the condenser pipe is an external grinding port, and the receiver is an internal grinding port); ), the large side of the adapter (outer grinding mouth) is connected with the wide-mouth long-necked round bottom flask (the bottle mouth is the inner grinding mouth). The capacity of the flask is 500ml, and the length of the neck is 220mm.

The lower end of the large side of the adapter is a cone (as shown in Figures 5 and 6), and eight openings 61 are evenly arranged on the side of the cone, and the aperture is 3ml. The two long arms of the cross hanging basket made of iron wire (as shown in Figure 2-4) are set as lugs 52, which can be hung on the opening of the adapter, and the sample tube (made of filter paper) is placed on the cross On the inner side of the hanging basket, it fits with the cross pipe frame part 51.

When in use, put the solvent (petroleum ether) into a wide-necked long-necked flask, and put the sludge sample into the sample tube. Petroleum ether is boiled and cooled to reflux, and the sludge in the sample tube is rinsed. The soluble components (saturated components, aromatic components, colloids) in the sludge are dissolved in the solvent, and the solvent reduces the viscosity of the sludge, so that the water in the sludge can be absorbed. Released, the solvent and water dissolved with soluble matter pass through the sample tube made of filter paper and fall into the flask, while the mud sand in the oil sludge and the asphaltene in the oil are intercepted in the sample tube. The water can be boiled and evaporated together with the solvent, and after condensation, the condensate flows into the water receiving tube with graduations in the receiver. Because the density of water is greater than that of sherwood oil, moisture can settle to the lower part of the receiver's moisture receiving tube, and the solvent on the receiver's moisture receiving tube top returns to the flask. With the continuous reflux and distillation, the soluble matter in the oil sludge is continuously washed out, and the water is continuously carried out by petroleum ether and continuously settles to the lower part of the left pipe of the moisture receiver. According to the amount of sludge and the volume of steamed water, the water content of sludge can be calculated. Take out the sample tube and weigh to obtain the total amount of the sample tube, silt and asphaltene. Put the sample tube containing oily sand and asphaltene, solvent (such as toluene) into the flask, and reflux to dissolve the asphaltene. Take out the sample tube and weigh to obtain the total amount of the sample tube and mud.

The above description is only a preferred embodiment of the utility model, and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the aforementioned embodiments, for those skilled in the art, it can still understand the aforementioned The technical solutions described in each embodiment are modified, or some of the technical features are equivalently replaced. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present utility model shall be included in the protection scope of the present utility model.

Claims (9)

1. A novel oil sludge component measuring device is characterized in that: comprises a wide-mouth long-neck round-bottom flask, a sample tube, a receiver and a condenser tube, wherein the receiver is formed by communicating a moisture receiving tube and a branch tube positioned at the upper part of the moisture receiving tube, the lower end of the moisture receiving tube is provided with a ball valve for discharging received liquid in the moisture receiving tube,

wherein,

the upper part of the moisture receiving pipe is hermetically connected with the condensing pipe, and the end of the branch pipe is hermetically connected with the wide-mouth long-neck round-bottom flask;

the sample tube is fixed inside the wide-mouth long-neck round-bottom flask and is positioned at the upper end of the neck of the flask, and is used for filtering the solvent flowing out of the receiver.

2. The novel sludge composition measuring device according to claim 1, wherein: and scales are arranged on the moisture receiving pipe.

3. The novel sludge composition measuring device according to claim 2, wherein: the scale range of the moisture receiving tube is 0-10 ml, and the accurate reading is 0.1 ml.

4. The novel sludge composition measuring device according to claim 1, wherein: the device also comprises an adapter and a cross hanging basket, wherein,

the branch pipe of the receiver is hermetically connected with the wide-mouth long-neck round-bottom flask through an adapter, the small side of the adapter is hermetically connected with the end of the branch pipe, and the large side of the adapter is hermetically connected with the long-neck round-bottom flask;

the lower end of the large side of the adapter is a cone, an opening is formed in the side face of the cone, and the cross-shaped hanging basket is hung below the adapter through the opening;

the sample tube is arranged in the cross hanging basket and is attached to the hanging basket,

preferably, the cross-shaped hanging basket is composed of a cross-shaped pipe frame part and a lifting lug part, the cross-shaped pipe frame part is used for installing the sample tube, and the lifting lug part is hung at the opening.

5. The novel sludge composition measuring device according to claim 4, wherein: the adapter is evenly provided with 8 open pores.

6. The novel sludge composition measuring device according to claim 5, wherein: the aperture of the opening on the adapter is 3 mm.

7. The novel sludge composition measuring device according to claim 4, wherein: the outer caliber of the branch pipe of the receiver is connected with the inner caliber grinding port on the small side of the adapter, and the outer caliber on the large side of the adapter is connected with the inner caliber grinding port of the long-neck round-bottom flask; and the upper port of the moisture receiving pipe of the receiver is connected with the grinding port of the condensing pipe.

8. The novel sludge composition measuring device according to claim 1, wherein: the capacity of the wide-mouth long-neck round-bottom flask is 500-1000mL, and the neck length is 2 times of the diameter of the spherical bottle belly.

9. The novel sludge composition measuring device according to claim 1, wherein: the flask capacity of the wide-mouth long-neck round-bottom flask is 500mL, and the length of the flask neck is 220 mm.