CN103525447A - External heating dry distillation method with self-generated dry distillation gas of oil shale as heat carrier - Google Patents
External heating dry distillation method with self-generated dry distillation gas of oil shale as heat carrier Download PDFInfo
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- CN103525447A CN103525447A CN201310517012.7A CN201310517012A CN103525447A CN 103525447 A CN103525447 A CN 103525447A CN 201310517012 A CN201310517012 A CN 201310517012A CN 103525447 A CN103525447 A CN 103525447A
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Abstract
The invention relates to an external heating dry distillation method with self-generated dry distillation gas of oil shale as a heat carrier, and belongs to a dry distillation method for oil shale. Oil shale containing above 3.5% of dry distillation gas is added into a dry distillation furnace, the temperature in the furnace is risen to 500-600 DEG C with self dry distillation gas as a heat carrier, oil mist is at an outlet above the furnace, and sent into a Venturi tower, a rotating-separating plate tower and an electrical oil precipitator device in the case of whole-course negative pressure, and shale oil and shale gas are separated. The generated shale semi-coke after dry distillation is sold as goods. The method is characterized in that an in-furnace combustion method is replaced by the heat carrier cycle heating. Oil products and products of semi-coke, dry distillation gas and the like with high yield and good quality can be obtained only through low temperature dry distillation, which is obtained through analysis.
Description
Technical field
The invention belongs to a kind of oil shale retort method.
Background technology
Current domestic oil shale distillation mostly is internal combustion type, owing to leading to gas retort into air, burning, the fixed carbon in many lightweight oils and carbonization gas and semicoke is burnt.Therefore oil yield rate is low, because lead to into air, although the increase of carbonization gas volume is many, the calorific value of carbonization gas and semicoke is also very low, causes function impaired, and what even have is substantially useless, and the technique of this internal combustion type is a technique of waste resource.
Although also have at present the technique of outer heating type both at home and abroad, it lacks the sweetening process of gas, and the temperature of heating is also higher, oil yield rate and product oil is second-rate equally.
Summary of the invention
The invention provides and a kind ofly take self-produced gas as thermal barrier external heat oil shale retort method, low to solve the oil yield rate that internal combustion type oil shale distillation exists, the lower problem of calorific value of carbonization gas and semicoke.
The technical scheme that the present invention takes is to comprise the following steps:
(1), will add gas retort containing more than 3.5% resinous shale of carbonization gas, by self carbonization gas, as thermal barrier, heated to 500 ~ 600 ℃ in stove, the outlet of mist of oil above stove, the in the situation that of omnidistance negative pressure, deliver to venturi tower, revolve Fen Banta, electricity is flutterred in oily apparatus shale oil, shale gas is separated;
(1), described shale oil is through buffering, precipitation obtains Commercial Oil; Described shale gas is obtained the carbonization gas with certain calorific value through desulfurization, and enters in gas holder and deposit;
(2), described carbonization gas has three purposes: the one, be the regenerative furnace burning, heating use of the required thermal barrier of heating gas retort, the 2nd, as thermal barrier, by described regenerative furnace, be heated to 600 ℃ ~ 650 ℃ and deliver to gas retort; The 3rd, remaining carbonization gas is sold as commercial combustion gas;
(2) shale semicockes that, produce after destructive distillation are sold as commodity.
The present invention also comprises, continues to extract sulfate of ammoniac after desulfurization.
Advantage of the present invention is that thermal barrier circulating-heating has replaced combustion method in furnace, will produce three kinds of above products: shale oil, has the semicoke product suitable with former resinous shale calorific value, the oil shale distillation gas suitable with oil liquefied gas; Can also in sweetening process, extract sulfate of ammoniac and a small amount of sulfur product.By analysis, draw: only have low-temperature pyrolysis could obtain oil production and the product such as semicoke, carbonization gas of high yield, high-quality.Present invention includes sulfur method, the carbonization gas through desulfurization has alleviated the corrosion of equipment and destruction in working cycle; When burning carbonizing gas, greatly reduced SO
2, NO
xdeng the discharge of obnoxious flavour, greatly purified environment, reduce and pollute.Meanwhile, also install the device that extracts sulfate of ammoniac additional, can obtain considerable income.Low-temperature pyrolysis has also obtained high-quality semicoke.Thermal source in resinous shale mainly comes from fixed carbon, and the temperature of combustion of fixed carbon is 815 ℃, low-temperature pyrolysis can not taken away the fixed carbon in resinous shale obviously, and what moreover volatile matter also retained is many, and this is the major cause that we must select low-temperature pyrolysis.
Embodiment
Embodiment 1
(1), will add gas retort containing more than 3.5% resinous shale of carbonization gas, by self carbonization gas, as thermal barrier, heated to 500 ℃ in stove, the outlet of mist of oil above stove, the in the situation that of omnidistance negative pressure, deliver to venturi tower, revolve Fen Banta, electricity is flutterred in oily apparatus shale oil, shale gas is separated;
(1), described shale oil is through buffering, precipitation obtains Commercial Oil; Described shale gas is obtained the carbonization gas with certain calorific value through desulfurization, and enters in gas holder and deposit;
(2), described carbonization gas has three purposes: the one, be the regenerative furnace burning, heating use of the required thermal barrier of heating gas retort, the 2nd, as thermal barrier, by described regenerative furnace, be heated to 600 ℃ and deliver to gas retort; The 3rd, remaining carbonization gas is sold as commercial combustion gas;
(2) shale semicockes that, produce after destructive distillation are sold as commodity.
The present invention also comprises, continues to extract sulfate of ammoniac after desulfurization.
Embodiment 2
(1), will add gas retort containing more than 3.5% resinous shale of carbonization gas, by self carbonization gas, as thermal barrier, heated to 550 ℃ in stove, the outlet of mist of oil above stove, the in the situation that of omnidistance negative pressure, deliver to venturi tower, revolve Fen Banta, electricity is flutterred in oily apparatus shale oil, shale gas is separated;
(1), described shale oil is through buffering, precipitation obtains Commercial Oil; Described shale gas is obtained the carbonization gas with certain calorific value through desulfurization, and enters in gas holder and deposit;
(2), described carbonization gas has three purposes: the one, be the regenerative furnace burning, heating use of the required thermal barrier of heating gas retort, the 2nd, as thermal barrier, by described regenerative furnace, be heated to 625 ℃ and deliver to gas retort; The 3rd, remaining carbonization gas is sold as commercial combustion gas;
(2) shale semicockes that, produce after destructive distillation are sold as commodity.
The present invention also comprises, continues to extract sulfate of ammoniac after desulfurization.
Embodiment 3
(1), will add gas retort containing more than 3.5% resinous shale of carbonization gas, by self carbonization gas, as thermal barrier, heated to 600 ℃ in stove, the outlet of mist of oil above stove, the in the situation that of omnidistance negative pressure, deliver to venturi tower, revolve Fen Banta, electricity is flutterred in oily apparatus shale oil, shale gas is separated;
(1), described shale oil is through buffering, precipitation obtains Commercial Oil; Described shale gas is obtained the carbonization gas with certain calorific value through desulfurization, and enters in gas holder and deposit;
(2), described carbonization gas has three purposes: the one, be the regenerative furnace burning, heating use of the required thermal barrier of heating gas retort, the 2nd, as thermal barrier, by described regenerative furnace, be heated to 650 ℃ and deliver to gas retort; The 3rd, remaining carbonization gas is sold as commercial combustion gas;
(2) shale semicockes that, produce after destructive distillation are sold as commodity.
The present invention also comprises, continues to extract sulfate of ammoniac after desulfurization.
Test example: carry out the influence degree of low-temperature pyrolysis to product.
Through test repeatedly and with reference to the teaching material of University Of Tianjin's " low-temperature pyrolysis engineering ", draw the influence degree of pyrolysis temperature to product.
The conclusion that draws from table, only has low-temperature pyrolysis of the present invention could obtain the products such as the oil production of high yield, high-quality and semicoke, carbonization gas.Simultaneous temperature increases, and the temperature of will increasing export, and some impurity of taking have not only reduced the quality of oil product etc., returns condensation and reclaims and increased burden.
Low-temperature pyrolysis has also obtained high-quality semicoke.
Thermal source in resinous shale mainly comes from fixed carbon, and the temperature of combustion of fixed carbon is 815 ℃, low-temperature pyrolysis can not taken away the fixed carbon in resinous shale obviously, and what moreover volatile matter also retained is many, and this is the major cause that we must select low-temperature pyrolysis.
Claims (2)
1. the external heat method for destructive distillation that the self-produced carbonization gas of resinous shale of take is thermal barrier, is characterized in that comprising the following steps:
(1), will add gas retort containing more than 3.5% resinous shale of carbonization gas, by self carbonization gas, as thermal barrier, heated to 500 ~ 600 ℃ in stove, the outlet of mist of oil above stove, the in the situation that of omnidistance negative pressure, deliver to venturi tower, revolve Fen Banta, electricity is flutterred in oily apparatus shale oil, shale gas is separated;
(1), described shale oil is through buffering, precipitation obtains Commercial Oil; Described shale gas is obtained the carbonization gas with certain calorific value through desulfurization, and enters in gas holder and deposit;
(2), described carbonization gas has three purposes: the one, be the regenerative furnace burning, heating use of the required thermal barrier of heating gas retort, the 2nd, as thermal barrier, by described regenerative furnace, be heated to 600 ℃ ~ 650 ℃ and deliver to gas retort; The 3rd, remaining carbonization gas is sold as commercial combustion gas;
(2) shale semicockes that, produce after destructive distillation are sold as commodity.
2. according to claim 1ly take the external heat method for destructive distillation that the self-produced carbonization gas of resinous shale is thermal barrier, characterized by further comprising the following step: after desulfurization, continue to extract sulfate of ammoniac.
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| CN201310517012.7A CN103525447A (en) | 2013-10-29 | 2013-10-29 | External heating dry distillation method with self-generated dry distillation gas of oil shale as heat carrier |
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| CN201310517012.7A CN103525447A (en) | 2013-10-29 | 2013-10-29 | External heating dry distillation method with self-generated dry distillation gas of oil shale as heat carrier |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104192800A (en) * | 2014-08-29 | 2014-12-10 | 华南理工大学 | Combined oil shale dry distillation gas chemical chain hydrogen producing and power generating system and process |
Citations (4)
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|---|---|---|---|---|
| CN101942313A (en) * | 2010-07-27 | 2011-01-12 | 沈阳成大弘晟能源研究院有限公司 | Huadian type process and device for dry distillation of oil shale |
| CN102134498A (en) * | 2011-01-27 | 2011-07-27 | 吴启成 | Process and device for dry distillation of oil shale with low gas content |
| CN102936509A (en) * | 2012-10-25 | 2013-02-20 | 新疆宝明矿业有限公司 | External heat radiation type dry distillation system for oil shale |
| CN203238216U (en) * | 2012-10-25 | 2013-10-16 | 新疆宝明矿业有限公司 | External heat radiation type dry distillation furnace for oil shale |
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2013
- 2013-10-29 CN CN201310517012.7A patent/CN103525447A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101942313A (en) * | 2010-07-27 | 2011-01-12 | 沈阳成大弘晟能源研究院有限公司 | Huadian type process and device for dry distillation of oil shale |
| CN102134498A (en) * | 2011-01-27 | 2011-07-27 | 吴启成 | Process and device for dry distillation of oil shale with low gas content |
| CN102936509A (en) * | 2012-10-25 | 2013-02-20 | 新疆宝明矿业有限公司 | External heat radiation type dry distillation system for oil shale |
| CN203238216U (en) * | 2012-10-25 | 2013-10-16 | 新疆宝明矿业有限公司 | External heat radiation type dry distillation furnace for oil shale |
Non-Patent Citations (1)
| Title |
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| 熊耀等: ""国内油页岩干馏炼油技术发展现状"", 《现代化工》, vol. 33, no. 8, 31 August 2013 (2013-08-31), pages 40 - 44 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104192800A (en) * | 2014-08-29 | 2014-12-10 | 华南理工大学 | Combined oil shale dry distillation gas chemical chain hydrogen producing and power generating system and process |
| CN104192800B (en) * | 2014-08-29 | 2016-01-20 | 华南理工大学 | A kind of oil shale distillation chemistry chain hydrogen manufacturing combined generating system and technique |
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Application publication date: 20140122 |