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New technology for catalytically cracking light diesel oil from waste motor oil

A technology for catalytic cracking and waste oil, applied in catalytic cracking, petroleum industry, cracking and other directions, can solve the problems of complex process, pollution, small heat dissipation, etc., and achieve the effect of lowering reaction temperature, reducing environmental pollution and reducing waste of resources

Inactive Publication Date: 2009-09-16
熊道陵 +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Generally speaking, the amount of waste engine oil that can be recycled should be about 50% of the consumption. However, the recovery rate of waste engine oil is very low at present. Unknown, part of which is discharged into the environment and causes pollution
Although waste engine oil can also be used as fuel, when burning waste engine oil, the heat dissipation is small, and a large amount of thick smoke will be produced, which will cause great pollution to the environment and harm to the human body, and produce little beneficial effect.
[0003] At present, the disadvantages of refining waste engine oil into diesel technology are that the cetane number does not meet the national standard, the color is dark and opaque, the recovery rate is low, and the process is complicated

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Add 100 kg of waste engine oil from the feed port. When entering the oil, first open the gate valve, then open the stop valve, and smoothly add the waste engine oil into the reaction kettle through the oil pump. With 100 grams of catalyst (catalyst is made of 5% Fe 2 o 3 , 30% active Al 2 o 3 , 5% MgO, 30% CaO, 10% SiO 2 , 15% NaOH, 5% KOH, 1% Al 2 (SO 4 ) 3 , 0.1% mixed rare earth composition). Put it into the reaction kettle from the catalyst inlet, and close the valve after all the waste engine oil and catalyst are added. The reactor is heated to make the waste engine oil reach a temperature of 300°C, and the waste engine oil is catalytically cracked for 5 hours to obtain a distillate gas with a temperature of 180°C. The diesel fraction gas passes through the distillation tower to the fraction control sensor device to control the diesel fraction, the light diesel fraction gas enters the condenser through the pipeline to condense, and the condensed liquid ligh...

Embodiment 2

[0029] Add 100 kg of waste engine oil from the feed port. When entering the oil, first open the gate valve, then open the stop valve, and smoothly add the waste engine oil into the reaction kettle through the oil pump. With 100 grams of catalyst (catalyst is made of 10% Fe 2 o 3 , 20% active Al 2 o 3 , 10% MgO, 20% CaO, 10% SiO 2 , 10% NaOH, 10% KOH, 2% Al 2 (SO 4 ) 3 , 0.2% mixed rare earth composition). Put it into the reaction kettle from the catalyst inlet, and close the valve after all the waste engine oil and catalyst are added. The reactor is heated to make the waste engine oil reach a temperature of 400°C, and the waste engine oil is catalytically cracked for 5 hours to obtain distillate gas with a temperature of 260°C. The diesel fraction gas passes through the distillation tower to the fraction control sensor device to control the diesel fraction, the light diesel fraction gas enters the condenser through the pipeline to condense, and the condensed liquid lig...

Embodiment 3

[0032] Add 100 kg of waste engine oil from the feed port. When entering the oil, first open the gate valve, then open the stop valve, and smoothly add the waste engine oil into the reaction kettle through the oil pump. With 100 grams of catalyst (catalyst is made of 8% Fe 2 o 3 , 10% active Al 2 o 3 , 20% MgO, 10% CaO, 20% SiO 2 , 20% NaOH, 5% KOH, 5% Al 2 (SO 4 ) 3 , 0.3% mixed rare earth composition). Put it into the reaction kettle from the catalyst inlet, and close the valve after all the waste engine oil and catalyst are added. Heating the reaction kettle to make the waste engine oil reach a temperature of 500°C, and allowing the catalytic cracking reaction of the waste engine oil for 5 hours to obtain distillate gas with a temperature of 350°C. The diesel fraction gas passes through the distillation tower to the fraction control sensing device to control the diesel fraction, the light diesel fraction gas enters the condenser through the pipeline to condense, and ...

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Abstract

The invention belongs to the diesel oil refining technology, especially a new technology for catalytically cracking light diesel fuel from waste motor oil. Currently, the drawbacks of the prior technology for refining the waste motor oil into diesel oil are that: the cetane number falls short of national standard and the chroma is deep and opaque, the recovery is low and the technology is complex. The new technology comprises the following steps: adding waste motor oil into a reaction kettle; adding a hone-made good catalyst accounting for 1 / 1000 of the weight of the waste motor oil; heating to 300-500 DEG C to make the waste motor oil catalytically crack, finally obtaining distillation product; putting the distillation product into a condenser, making the condensed liquid-sate light diesel oil and the tail gas through an oil-gas splitter, making the tail gas into a gas collector; split diesel oil flowing into a treatment tank, adding high efficiency treating agent with concentration of 5 / 10000 into the treatment tank, treating the diesel oil using a backflow spray head; finally layering and filtering the treated light diesel oil by an oil water splitter, namely the yellow transparent light diesel oil with flash point >55 DEG C is obtained, with recovery of higher 80%.

Description

technical field [0001] The invention belongs to diesel refining technology, in particular to a new process for catalytically cracking light diesel oil from waste engine oil. Background technique [0002] Waste engine oil is a substance that is discarded due to external pollution of lubricating oil during use to produce a large amount of colloids and oxides, which reduces or even loses its due efficacy. The National Environmental Protection Agency has listed waste engine oil as one of the three main points of control in the field of environmental protection in the 21st century, and making full use of waste engine oil to regenerate and restore finished engine oil, or refining waste engine oil into gasoline and diesel can not only alleviate my country's oil shortage but also The demand and the growing contradiction between supply and demand can also promote environmental protection and turn waste into treasure, create considerable economic benefits, and help some people get rid ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10M175/00C10G11/00
Inventor 熊道陵熊洧邱萍
Owner 熊道陵
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