Device for injection of high chlorine gasoline and diesel oil into coking heating furnace for high temperature reaction for dechlorination

Abstract

The invention discloses a device for injection of high chlorine gasoline and diesel oil into coking heating furnace for high temperature reaction for dechlorination, the device structure includes a high chlorine oil tank, a low temperature high pressure oil pump, pipeline, an oil conveying pipeline, a regulation valve, a pressure sensor, a flow sensor, a heating furnace, a coke tower and a fractionating column, and is characterized in that: the oil conveying pipeline is used for connection, the regulation valve is added, after the high chlorine gasoline and diesel oil is pressurized by the low temperature high pressure oil pump, the high chlorine gasoline and diesel oil replacing soften water is injected into the furnace tube, and heated to about 495 DEG C, after r pyrolysis condensation reaction in the coke tower, chloride ion exists in coke, volatilized oil and gas enter the fractionating column by the coke tower top, and by multi-times of contact of gas and liquid phases, a product with the chloride ion less than 5 pm is separated. Compared with the device in the prior art, the device has the advantages of extension of equipment service life, strong practicability, recycling property, no production of pollution, cost saving, increase of the safety coefficient and the like, so that the device has a lot of promotion use value.

Description

1. Technical field [0001] The invention relates to an oil refining device, in particular to a high-temperature reaction dechlorination device for injecting high-chlorine gasoline and diesel oil into a coking heating furnace. 2. Background technology [0002] At present, there are a large number of high-chlorine gasoline and diesel on the market, the chlorine content of which is as high as 150ppm, and this part of gasoline and diesel cannot be hydrogenated, because a large part of the pipeline of the hydrogenation device is made of stainless steel, and the generated hydrogen chloride is very corrosive to the equipment. Seriously, the hydrogenation reaction system is a high-pressure hydrogenation system. Once the equipment leaks, the consequences will be very serious. Moreover, the chlorine contained in high-chlorine gasoline and diesel oil is generally organic chlorine, which cannot be directly removed by normal physical methods. It must undergo high-temperature reaction. Con...

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Problems solved by technology

[0002] At present, there are a large number of high-chlorine gasoline and diesel on the market, the chlorine content of which is as high as 150ppm, and this part of gasoline and diesel cannot be hydrogenated, because a large part of the pipeline of the hydrogenation device is made of stainless steel, and the generated hydrogen chloride is very corrosive to the equipment. Seriously, the hydrogenation reaction system is a high-pressure hydrogenation system. Once the equipment leaks, the consequences will be very serious. Moreover, the chlorine contained in high-chlorine gasoline and diesel oil is generally organic chlorine, which cannot be directly removed by normal physical methods. It must undergo high-temperature reaction. Convert organic chlorine into inorganic chlorine and release it in gaseous or solid form

At present, there is no good elimination method in China. Large-scale refineries will not process high-chlorine gasoline and diesel, so that limited resources are not fully utilized.

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