Process method of fine fractionation for resource utilization of organic heat carrier
A process method and resource utilization technology, applied in the fine fractionation field of organic heat carrier resource utilization, can solve the problems of high energy consumption, long operation process, and large environmental pollution, and achieve improved economic benefits, low operating pressure, and high application value Effect
Active Publication Date: 2016-05-18
山东恒利热载体工程技术有限公司
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Problems solved by technology
This recovery method has a long operation process and needs to go through multiple washing processes, and will produce discharge of acid-base neutralized salt, decolorizer and white dregs, which has great environmental pollution.
Moreover, due to the high boiling point of the heat transfer oil, the rectification method consumes a lot of energy and the product yield is low
[0003] In addition, due to the large differences in the indicators of different types of heat transfer oils, and the sources of waste heat transfer oils are different, the use of the above recycling methods may also cause unstable product quality
Method used
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Embodiment Construction
[0014] When the high boiling point components are separated, the liquid mixture first passes through the dehydration tank, and the water is naturally separated by the difference in the molecular weight of each component under the action of gravity. Next, the liquid mixture is transported to the falling film distillation tower, and the liquid mixture is placed in the Under vacuum conditions, moderately heated for separation, the distillation temperature is low and the heating time is short, which facilitates the process operation, the separation is high, and the separation state is irreversible. The separated liquid mixture is sent to the fractionation tower for separation. Through the different boiling point characteristics of the components in the liquid mixture, the liquid mixture is first heated from the reactor and rises to the fractionation section. The low boiling point continues to rise, and the top of the tower is subjected to low boiling point After heat transfer, the ...
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The invention discloses a resource-utilization fine fractionation technology for an organic heat carrier, and belongs to the field of application of organic heat carriers. The technology comprises a high-boiling-point composition separation technology and a low-boiling-point composition separation technology, and is characterized in that when high-boiling-point compositions are separated, a liquid mixture successively enters a dewatering tank, a falling-film distillation tower, a fractionation tower, a molecule distillation evaporator, a reduced-pressure flash evaporation tower, a reduced-pressure distillation tower and an oil storage tank; and when low-boiling-point compositions are separated, the liquid mixture firstly enters a dewatering tank, then enters a falling-film evaporator for separation, and finally is conveyed to an oil storage tank. The technology has the characteristics of low operation pressure, high separation ratio, low energy consumption, cleanness, environment friendliness and the like. The technology is capable of conveniently dividing to-be recovered heat transfer oil into white-oil heat transfer oil, lubricating oil, heavy oil fuel and other compositions according to the difference of evaporation temperature, has the characteristics of environment friendliness, ideal compositions and high efficiency, helps to improve economic benefit and environment-protection benefit, and has extremely high application value.
Description
technical field [0001] The invention relates to a process method for resource utilization of an organic heat carrier by fine fractionation, and belongs to the field of organic heat carrier applications. Background technique [0002] The traditional waste oil recovery method is to adjust the pH value of the waste oil with acid and alkali chemical treatment according to the acid value. After washing with water, add activated carbon or white clay to absorb, filter, and dry, and then collect the waste oil in a certain temperature range through vacuum fractionation. Distillate, for the purpose of recovery. This recovery method has a long operation process and needs to go through multiple washing processes, and will produce discharge of acid-base neutralized salt, decolorizer and white dregs, which has great environmental pollution. And because the boiling point of heat transfer oil is high, the rectification method consumes a lot of energy and the product yield is low. [0003]...
Claims
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IPC IPC(8): C10G53/02C10M175/00
Inventor 耿佃华丁冠祺耿臣
Owner 山东恒利热载体工程技术有限公司