CN105628540A - Performance evaluation method of scale inhibitor for petrochemical process - Google Patents

Abstract

The invention discloses a performance evaluation method of a scale inhibitor for the petrochemical process. The method comprises the following steps: adding a test raw material into a dirt collecting pipe at room temperature, heating the dirt collecting pipe, introducing the test raw material into a dirt generating pipe while heating the dirt generating pipe, adjusting pressure of the whole evaluation system, stopping material cycling after a period of cycling of the raw material to be tested between the dirt generating pipe and the dirt collecting pipe, washing the dirt generating pipe and the dirt collecting pipe with a hydrocarbon solvent, removing the solvent and drying, cooling to room temperature and measuring total weight of dirt generated in the dirt generating pipe and the dirt collecting pipe, adding a scale inhibitor into the equal amount of the test raw material, measuring total weight of dirt generated in the dirt generating pipe and the dirt collecting pipe, calculating scale inhibiting ratio of the evaluated scale inhibitor on the used test raw material with the total weight of dirt generated in the last blank test as reference, and evaluating performance of the scale inhibitor through the scale inhibiting ratio. The method is easy to carry out, and evaluation data is accurate.

Description

The method of evaluating performance of antiscale agent in petrochemical processing

Technical field

The invention belongs to chemical process field, be specifically related to the method for evaluating performance of a kind of antiscale agent in petrochemical processing.

Background technology

The performance of antiscale agent in petrochemical processing comments method at least to include constant temperature process, homoiothermic, pressure regulation, add the basic processes such as antisludging agent. Performance at current antiscale agent in petrochemical processing is commented in method, and technological process is not easy to implement, and evaluating data is not accurate enough, and manufacturing process is complicated, and production efficiency is low.

Summary of the invention

For the above-mentioned technical problem overcoming prior art to exist, it is an object of the invention to, it is provided that the performance of a kind of antiscale agent in petrochemical processing comments method, the present invention not only manufacturing process is simple, improve work efficiency, and evaluating data is accurate.

The performance of antiscale agent in petrochemical processing provided by the invention comments method, comprises the following steps:

(1) in dirt collecting pipe, test raw material is added under room temperature, the temperature of dirt collecting pipe is risen to 40��80 DEG C, then test raw material is introduced dirt and generates pipe, start timing, the temperature that dirt generates pipe simultaneously rises to 200��400 DEG C, the pressure of whole evaluation system is adjusted to 0.9��10MPa, raw material to be tested generates at dirt and stops Matter Transfer between pipe and dirt collecting pipe after circulation a period of time, clean dirt with varsol and generate pipe and dirt collecting pipe, removing solvent is dried, measure dirt after being down to room temperature and generate the dirt gross weight generated in pipe and dirt collecting pipe,

(2) in equivalent test raw material, antisludging agent is added, measure dirt by the method for (1) step and generate the dirt gross weight generated in pipe and dirt collecting pipe, with the dirt gross weight of (1) step blank assay generation for benchmark, calculate the commented antisludging agent scale inhibition performance to test raw material used.

The performance of antiscale agent in petrochemical processing provided by the invention comments method, and it has the beneficial effects that, overcomes operation in the performance of prior art evaluation antiscale agent in petrochemical processing more, and the problem that workload is big improves work efficiency; Avoid the inconvenience that data inaccuracy is brought.

Detailed description of the invention

Below in conjunction with an embodiment, method is commented to be described in detail the performance of antiscale agent in petrochemical processing provided by the invention.

Embodiment

The method of evaluating performance of the antiscale agent in petrochemical processing of the present embodiment, comprises the following steps:

(1) in dirt collecting pipe, test raw material is added under room temperature, the temperature of dirt collecting pipe is risen to 60 DEG C, then test raw material is introduced dirt and generates pipe, start timing, the temperature that dirt generates pipe simultaneously rises to 300 DEG C, the pressure of whole evaluation system is adjusted to 5MPa, raw material to be tested generates at dirt and stops Matter Transfer between pipe and dirt collecting pipe after circulation a period of time, clean dirt with varsol and generate pipe and dirt collecting pipe, removing solvent is dried, and measures dirt and generate the dirt gross weight generated in pipe and dirt collecting pipe after being down to room temperature;

(2) in equivalent test raw material, antisludging agent is added, measure dirt by the method for (1) step and generate the dirt gross weight generated in pipe and dirt collecting pipe, with the dirt gross weight of (1) step blank assay generation for benchmark, calculate the commented antisludging agent scale inhibition performance to test raw material used.

The method of evaluating performance of antiscale agent in petrochemical processing, can be made directly the performance evaluation of antiscale agent in petrochemical processing, it is not necessary to be processed further, and operation is simple, and measurement data is accurate, it is easy to implement.

Claims (1)

1. the performance of an antiscale agent in petrochemical processing comments method, it is characterised in that: said method comprising the steps of:

(1) in dirt collecting pipe, test raw material is added under room temperature, the temperature of dirt collecting pipe is risen to 40��80 DEG C, then test raw material is introduced dirt and generates pipe, start timing, the temperature that dirt generates pipe simultaneously rises to 200��400 DEG C, the pressure of whole evaluation system is adjusted to 0.9��10MPa, raw material to be tested generates at dirt and stops Matter Transfer between pipe and dirt collecting pipe after circulation a period of time, clean dirt with varsol and generate pipe and dirt collecting pipe, removing solvent is dried, measure dirt after being down to room temperature and generate the dirt gross weight generated in pipe and dirt collecting pipe,

(2) in equivalent test raw material, antisludging agent is added, measure dirt by the method for (1) step and generate the dirt gross weight generated in pipe and dirt collecting pipe, with the dirt gross weight of (1) step blank assay generation for benchmark, calculate the commented antisludging agent scale inhibition performance to test raw material used.