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A heat pipe heating oil shale dry distillation gas process

A gas and oil shale technology, applied in the field of dry distillation of oil shale gas heat carrier, can solve problems such as carbon deposits blocking pipelines, and achieve the effects of easy operation, low failure rate, and reasonable process flow

Active Publication Date: 2016-02-24
NORTHEAST DIANLI UNIVERSITY
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Problems solved by technology

[0006] The purpose of the present invention is to solve the problem of carbon deposits clogging pipes existing in the existing circulating gas heating furnace, and propose a method of using heat pipe heat exchange technology in the circulating gas heating system to improve the thermal efficiency of the heating system, and through the switching operation of two sets of high-temperature heaters, Carbon deposition treatment can be carried out regularly to avoid carbon deposition in the heat pipe heating oil shale dry distillation gas process

Method used

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  • A heat pipe heating oil shale dry distillation gas process

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Embodiment Construction

[0023] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0024] refer to figure 1 , a heat pipe heating type oil shale carbonization gas process of the present invention includes the following:

[0025] 1) Circulating gas heating process:

[0026] The low-temperature circulating gas at 25-50°C from the condensing oil recovery system enters the low-temperature heat pipe heater from the cold-circulating gas inlet 1 of the low-temperature heat pipe heater, and there are several heat exchanges between the cold-circulating gas and the low-temperature heat pipe heater The heat pipe group of the sheet performs heat exchange, heats the gas to 350-400°C, and then passes through the cold cycle gas outlet 3 of the low-temperature heat pipe heater and enters the first cycle gas under the switching of the cycle gas inlet switching valve 5 The heating process may enter the second circulating gas heating process. The firs...

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Abstract

The invention discloses a gas distillation process employing a heat pipe heating oil shale. The gas distillation process is characterized by comprising a circulating gas heating process, a high-temperature flue gas cooling process, treatment of carbon deposit and treatment of soot formation, wherein the circulating gas heating process is alternately switched first circulating gas heating process or second circulating gas heating process; a high-temperature circulating gas subjected to heat treatment is conveyed to a dry distillation furnace; the high-temperature flue gas cooling process is alternately switched first high-temperature flue gas cooling process or second high-temperature flue gas cooling process; the flue gas, which is subjected to cooling treatment, of a high-temperature flue gas of a combustion furnace is discharged into a smoke extraction system; and carbon deposit treatment and soot formation treatment are carried out on a high-temperature heat pipe heater in an alternately switching manner, so that the gas distillation process has the advantages of being reasonable in technological process, convenient to operate, low in fault rate, high in oil shale distillation efficiency and the like.

Description

technical field [0001] The invention relates to the technical field of dry distillation of oil shale gas heat carrier and is a heat pipe heating type oil shale dry distillation gas [0002] craft. Background technique [0003] Oil shale is a kind of sedimentary rock with an inorganic mineral skeleton and contains solid organic matter, mainly kerogen and a small amount of asphaltene. Shale oil can be obtained from oil shale by low-temperature dry distillation (about 550°C). Shale oil is similar to crude oil and can be made into gasoline, diesel or as fuel oil. Therefore, it can replace petroleum and become a powerful supplement to petroleum resources. [0004] There are many types of oil shale retort furnaces, which can be divided into gas heat carrier retort furnaces and solid heat carrier retort furnaces according to the different heating carriers used. At present, the gas heat carrier carbonization furnace is mainly put into operation in China. The gas heat carrier of a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10G1/00C10B53/06
CPCC10B53/06C10G1/00
Inventor 王擎柏静儒张立栋迟铭书刘洪鹏
Owner NORTHEAST DIANLI UNIVERSITY
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