Methane-circulating retort capable of handling 500 to 1,000 tons of oil shale daily

An oil shale and dry distillation furnace technology, which is applied in the field of oil shale gas full-circulation dry distillation furnaces with a daily processing capacity of 500 to 1000 tons, can solve the problems of difficulty, poor uniform gas distribution in the dry distillation furnace, etc. Save investment and improve the effect of automatic control level

Inactive Publication Date: 2011-11-30
辽宁成大能源科技有限公司
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Problems solved by technology

This problem seems to be simple, but it is actually very difficult. Fushun type retort furnace w

Method used

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  • Methane-circulating retort capable of handling 500 to 1,000 tons of oil shale daily
  • Methane-circulating retort capable of handling 500 to 1,000 tons of oil shale daily
  • Methane-circulating retort capable of handling 500 to 1,000 tons of oil shale daily

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Embodiment Construction

[0046] figure 1 It is the process flow of the heat carrier of the gas full cycle dry distillation process of the present invention. The figure mainly reflects the full cycle process of gas as the heat carrier of carbonization. When the oily gas produced during the carbonization process of oil shale is discharged from the top of the carbonization furnace, the temperature is about 110°C. After the shale oil is recovered by the oil recovery device, it is cooled To about 40 ℃, into the gas tank. A part is sent to the heating furnace by the gas fan as fuel; a part is sent to the heating furnace by the gas fan to be heated to over 700°C as thermal cycle gas and then sent back to the retort furnace, and the temperature exceeds 680°C when entering the retort furnace; part is used as cold cycle gas by the gas The fan is sent to the bottom of the retort furnace to recover the waste heat of semi-coke. After the temperature rises above 450°C, it is mixed with the heat circulation gas at...

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Abstract

The invention discloses a process and a device for refining oil by dry distillation of oil shale. The process is characterized in that methane generated in the dry distillation process of the oil shale can be repeated used as a hot carrier in the dry distillation of the oil shale. The retort for realizing the dry distillation oil refining process is characterized in that: the retort has a vertical round-square structure, namely the cross section of the upper part is round, the cross section of the lower part is square, and the inside diameters of the upper and lower parts are the same; and array umbrellas, a herringbone baffle plate, a device shaped like a Ding(ancient cooking vessel of China) or in an Asi structure, an air distribution and material distribution tracery wall, a coke discharging tank, a cooling water jacket, a water seal pool, a coke pushing machine and a scraper conveyor are arranged in the retort from top down in turn. The daily handling capacity of the retort is 500 to 1,000 tons. The invention is suitable for refining oil by dry distillation of oil shale with low methane content, low solid carbon content, low water content and a particle size of 5 to 75 milliliters, and the recovery rate of the oil is 85 to 90 percent.

Description

technical field [0001] The invention relates to a process and a device for dry distillation and oil refining of oil shale by applying the gas full cycle technology. Background technique [0002] Shenyang Chengda Hongsheng Energy Research Institute Co., Ltd. once applied for the utility model patent of "300 tons of oil shale gas full-circulation retort furnace for daily processing" on September 16, 2008. The National Patent Office granted the utility model patent on September 23, 2009 after review, with the patent number : ZL200820015869.3; On November 20, 2008, the State Patent Office applied for "300 tons of oil shale gas full cycle dry distillation process per day" and granted the invention patent on May 12, 2010 after examination, the patent number: ZL200810228891.0. According to the above patented technology, the industrial production device "300 tons of oil shale gas full cycle retort furnace" (hereinafter referred to as "300 tons retort furnace") has been built in good...

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Application Information

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IPC IPC(8): C10B53/06C10B49/02C10B15/00C10B31/00C10B27/00C10B33/00
Inventor 吴启成
Owner 辽宁成大能源科技有限公司
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