Some standard content:
Petroleum and Natural Gas Industry Standard of the People's Republic of China SY/T 5581—93
TA1031 Crude Oil Demulsifier
Published on March 27, 1993
Ministry of Energy of the People's Republic of China
Implemented on September 1, 1993
Subject Content and Scope of Application
Petroleum and Natural Gas Industry Standard of the People's Republic of China TA1031 Crude Oil DemulsifierbzxZ.net
SY/T 5581—93
This standard specifies the terminology, technical requirements, test methods, inspection rules and requirements for marking, packaging, transportation and storage of TA1031 crude oil demulsifier.
This standard applies to TA.1031 demulsifier produced by the catalytic reaction of phenolamine resin with ethylene oxide and propylene oxide as initiator.
Cited standards
Guidelines for standardization work Provisions for the preparation of product standards GB 1.3
GB6368 Determination of pH value of aqueous surfactant solution Potentiometric method Internal point determination method for petroleum products (closed cup method) GB 261
GR 265
GB 510
3 Terminology
Method for determination of kinematic viscosity and calculation of dynamic viscosity of petroleum products Determination of freezing point of petroleum products
3.1 Sample: Demulsifier sample to be tested. 3.2 Reference sample: Qualified demulsifier sample used for reference in quality inspection confirmed by both the supply and demand parties. 4
Technical requirements
TA1031 Crude oil demulsifier shall meet the technical requirements in the following table. Project name
pH value1)
Dehydration rate, %,
Flash point. 'C.
Kinematic viscosity 2), m*/s,
Solidification point, 'C.
Note, 1) The sample is 1% aqueous solution
2) The test temperature is 40°C.
5 Test method
5.1 Determination of appearance
Observe by daylight method.
5.2 Determination of pH value
Measured according to the provisions of GB6368.
Ministry of Energy of the People's Republic of China approved on March 27, 1993
Red-brown liquid
Implementation on September 1, 1993
5.3 Determination of dehydration rate
5.3.1 Solvent
Ethanol (GB 6820).
5.3.2 Instrument
a. b. Dynamic mixer: HT-I type,
b. Scale: Sensitivity 5g
c. Electronic scale: Sensitivity 0.01g
SY/T 5581--93
d. Pipette, capacity 2ml, graduation value 0.02ml 3e. Graduated cylinder, capacity 100ml, graduation value 1ml h
f. Squeeze cylinder with stopper: capacity 100ml, graduation value 1ml, 9. Rubber stopper: Matching with the plunger cylinder,
h. Electric oscillator: vibration frequency 240 times/min, vibration degree 40±2mm si. Glass constant temperature water bath: temperature control accuracy is ±1C. 5.3.3 Test conditions
5.3.3.1 The constant temperature of the emulsion is 55℃.
5.3.3.2 Constant temperature sedimentation for 90min, read the water output. 5.3.4 Test steps
5.3.4.1 Weigh 500g of purified oil provided by the oil field, add 500g of distilled water to the stirring container (cup) of the dynamic mixer, place the container in a constant temperature water bath at 50℃ to preheat for 1h, take it out and place it on the mixer, stir it at the maximum speed for 1min. Prepare a crude oil emulsion with a water content of 50%. Or fresh crude oil with a water content of more than 30%. 5.3.4.2 Pour the prepared crude oil emulsion into a 100ml stoppered measuring cylinder, each measuring cylinder is filled with 80ml of crude oil emulsion, add a rubber stopper and place it in a constant temperature water bath at 55℃ to preheat for 30min
5.3.4.3 Weigh 1g of demulsifier (accurate to 0.01g) on an electronic scale, and dilute it with 65ml of ethanol in 100ml of measuring cylinder. The sample to be tested is diluted and prepared in the same way.
5.3.4.4 Use a 2ml pipette to draw 1.6ml of the prepared sample solution and add it to the measuring cylinder. 5.3.4.5 Shake the measuring cylinder with demulsifier by hand for 15 times and then place it on an electric shaker. After shaking for 3 minutes, place it in a 55℃ constant temperature water bath to observe the demulsification and water discharge. Keep the temperature constant for 90 minutes and read the water discharge. 5.3.4.6 Two parallel samples are required for each sample. If the relative difference in the water discharge after 90 minutes is greater than 10%, it will be invalid. 5.3.5 Calculation
The dehydration rate of the sample is calculated according to the following formula:
y×100%
Wherein, X is the dehydration rate of the sample, %
is the average dehydration rate of the sample, ml
is the average dehydration rate of the standard sample, ml.
5.4 Determination of flash point
Determine in accordance with the provisions of GB261.
5.5 Determination of viscosity
Determine in accordance with the provisions of GB265.
5.6 Determination of solidification point
Determine in accordance with the provisions of GB510.
6 Inspection rules
SY/T5581--93
6.1TA1031 crude oil demulsifier shall be inspected by the quality inspection department of the manufacturer, and ensure that all products shipped out of the factory meet the requirements of this standard. 6.2 The flash point, kinematic viscosity and solidification point in the test items are type inspection items, and they shall be sampled in accordance with the provisions of 6.6.1 in GB1.3. 6.3 Each batch of demulsifier products shipped out of the factory shall have a quality certificate that meets the requirements of this standard, and its contents shall include the manufacturer's name, trademark, product name, model, batch number, production date, net weight, quality indicators of this standard and the number of this standard. 6.4 Sampling method: Randomly take 5% of the total number of products in each batch, and take a mixed sample, not less than 3 barrels. Use a 1/4 glass sampling tube or other suitable sampling tube to take out no less than 100 ml of samples from the top, middle and bottom of each barrel, and put them into clean, dry, stoppered sample bottles, cover and seal them tightly. The bottle should be marked with: manufacturer name, product name, model, batch number, sampling date. 6.5 The user has the right to conduct random inspections on this product in accordance with the requirements specified in this standard. If the random inspection results do not meet the requirements of this standard, double sampling should be carried out for re-inspection. If the re-inspection results do not meet the requirements of this standard, even if only one indicator does not meet the requirements of this standard, the batch of products should be treated as unqualified products. 6.6 When the supply and demand parties have disputes over product quality, arbitration should be conducted in accordance with this standard. The arbitration unit shall be jointly agreed upon by the supply and demand parties. 7 Marking, packaging, transportation, storage
7.1 Marking
The packaging barrel should be clearly and firmly marked: product name, model, batch number, net weight, manufacturer name, trademark, production date, this standard number, and attached with product qualification mark. 7.2 Packaging
TA1031 crude oil demulsifier should be packed in clean, dry, sealed, non-leaking iron barrels. Each net weight is 180±1.0kg. 7.3 Transportation
Prevent drenching, exposure and collision during transportation. 7.4 Storage
Store away from direct sunlight, rain, and heat sources. The storage period is two years. Additional remarks
This standard was proposed by China National Petroleum Corporation. This standard was drafted by the technical staff of the Petrochemical Professional Standardization Technical Committee. This standard was drafted by the Second Chemical Plant of Jinling Petrochemical Company. The main drafters of this standard are Tao Deming, Jia Jianguo, and Zhang Peixiang.
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