Method for synthesizing and using oil sludge falling to the ground

Abstract

This invention relates to a method for utilizing the mixtures of crude oil and soil. The method adopts thermochemical washing, dehydration / drying treatment, and incineration on different kinds of mixtures of crude oil and soil. Recovered mineral oil and wastewater can be utilized. Petroleum sludge is sent to an incinerator for incineration, and the flue gas generated during incineration is used to heat waste heat boiler to produce steam, which is a heat source for production and living. The method has such advantages as simple process, easy application, low running cost, effective recovery and utilization of mineral oil, no environmental pollution, clean production, and high profit.

Description

Technical field: [0001] The invention relates to a process method for comprehensive treatment and disposal of oily sludge falling on the ground in an oil field, and belongs to the technical field of environmental protection waste management. Background technique: [0002] As an important pollutant and pollution source, oily sludge is more and more harmful to the environment, and its harmless treatment is imminent. In particular, heavy oil oilfields bring more and more oily sludge in the process of oil production, with a large amount of accumulation, including scum in the sewage treatment process, tank bottom sludge, etc. These sludge containing heavy oil flow Poor resistance, high viscosity, containing a large amount of organic and inorganic chemicals, causing serious pollution to the environment. At present, a certain degree of theoretical research and beneficial technical attempts have been carried out on oil sludge treatment at home and abroad, and a preliminary technica...

AI Technical Summary

Problems solved by technology

The technologies currently used in China mainly include incineration method, separation method and biodegradation method. The incineration method is to build special incineration equipment and cooperate with diesel oil to incinerate oil sludge sand. This method has high equipment investment, high operating cost, and high Cause energy waste, although the treatment is relatively thorough, but the practical application is very difficult; the separation method is to use physical or chemical methods to separate the oil and mud sand in the oil sludge sand, this method can recycle the oil in the oil sludge sand, but the cost is relatively high High, and the separated mud and sand will still contain certain petroleum substances, which will cause environmental pollution if directly discharged into the environment, so the separated mud and sand still need to be treated by incineration, storage or burial; biodegradation The method refers to the use of microorganisms to decompose the oily substances contained in the oil mud sand, the cost is high, the technology is not very mature, and the contained oily substances cannot be effectively used

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