Method for determining aged oil sludge components based on two-time reflux and one-time determination of sample tube weight
A sample tube and oil sludge technology, applied in the direction of weighing by removing certain components, can solve the problems of increasing difficulty in oil-sand separation, affecting the economic benefits of oil sludge, and low light oil content, achieving less equipment and better design Ingenious, error-reducing effect
Inactive Publication Date: 2015-06-10
ZHEJIANG OCEAN UNIV
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Problems solved by technology
When the oil content of the sludge is low, the sludge can be treated by thermochemical washing, 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 with more asphaltene increases
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
Method used
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Embodiment 1
[0034] A method based on two refluxes and one determination of the composition of aged oil sludge by weight of a sample tube using e.g. figure 1 The shown device can analyze the water content, oil content, solid content and asphaltene content of the oil sludge without taking out the sample tube halfway and weighing it.
[0035] The reflux device used in the present invention is as figure 1 , including a wide-mouth long-necked round-bottom flask 1, a sample tube 2, a receiver 3, a condenser tube 4, a cross hanging blue 5, and an adapter 6. Described receiver 3 is communicated by water receiving pipe 31 and the branch pipe 32 that is positioned at the top of water receiving pipe and forms (as figure 1As shown), the moisture receiving tube 31 is provided with a scale, the scale range is 0 ~ 10ml, and the accurate reading is 0.1ml. A spherical valve 33 is provided at the lower port of the moisture receiving tube to release the moisture received in the moisture receiving tube. of...
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The invention discloses a method for determining aged oil sludge components based on two-time reflux and one-time determination of sample tube weight. The method comprises the following steps: (1) sample loading: by virtue of a reflux device, loading aged oil sludge into a filter paper sample tube, and immobilizing the sample tube on the flask neck of the reflux device; (2) primary refluxing: by virtue of methods of reflux dissolving and carrying, dissolving oil in the oil sludge and taking out water, so that silt and asphaltene leave in the oil sludge, and separating out water in a solvent; after refluxing, naturally cooling, taking out and evaporating the solvent so as to obtain soluble components in the aged oil sludge; (3) secondary refluxing: by virtue of a method of reflux dissolving, dissolving the asphaltene in the silt of the sample tube in the solvent, so that only silt leaves in the oil sludge in the sample tube; and (4) determining: taking out, drying and weighing the sample tube, thus calculating the contents of water, oil, mud and asphaltene in the aged oil sludge.
Description
technical field [0001] The invention relates to a method for determining oil sludge components. Background technique [0002] 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 t...
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IPC IPC(8): G01N5/04
Inventor 陈英陈东王玉华王路辉杨淑清郑贤敏张仁坤
Owner ZHEJIANG OCEAN UNIV