WO2014057829A1 - 石炭不活性化処理装置 - Google Patents

石炭不活性化処理装置 Download PDF

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Publication number
WO2014057829A1
WO2014057829A1 PCT/JP2013/076477 JP2013076477W WO2014057829A1 WO 2014057829 A1 WO2014057829 A1 WO 2014057829A1 JP 2013076477 W JP2013076477 W JP 2013076477W WO 2014057829 A1 WO2014057829 A1 WO 2014057829A1
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Prior art keywords
coal
processing
gas
processing apparatus
oxygen concentration
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Ceased
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PCT/JP2013/076477
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English (en)
French (fr)
Japanese (ja)
Inventor
慶一 中川
大本　節男
佐藤　文昭
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Mitsubishi Heavy Industries Ltd
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Mitsubishi Heavy Industries Ltd
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Priority to IN10894DEN2014 priority Critical patent/IN2014DN10894A/en
Priority to DE112013004944.9T priority patent/DE112013004944T5/de
Priority to AU2013327959A priority patent/AU2013327959B2/en
Priority to CN201380035860.2A priority patent/CN104411808B/zh
Priority to US14/408,784 priority patent/US9758741B2/en
Publication of WO2014057829A1 publication Critical patent/WO2014057829A1/ja
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G OR C10K; LIQUIFIED PETROLEUM GAS; USE OF ADDITIVES TO FUELS OR FIRES; FIRE-LIGHTERS
    • C10L9/00—Treating solid fuels to improve their combustion
    • C10L9/02—Treating solid fuels to improve their combustion by chemical means
    • C10L9/06—Treating solid fuels to improve their combustion by chemical means by oxidation
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G OR C10K; LIQUIFIED PETROLEUM GAS; USE OF ADDITIVES TO FUELS OR FIRES; FIRE-LIGHTERS
    • C10L9/00—Treating solid fuels to improve their combustion
    • C10L9/08—Treating solid fuels to improve their combustion by heat treatments, e.g. calcining
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G OR C10K; LIQUIFIED PETROLEUM GAS; USE OF ADDITIVES TO FUELS OR FIRES; FIRE-LIGHTERS
    • C10L2230/00—Function and purpose of a components of a fuel or the composition as a whole
    • C10L2230/14—Function and purpose of a components of a fuel or the composition as a whole for improving storage or transport of the fuel
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G OR C10K; LIQUIFIED PETROLEUM GAS; USE OF ADDITIVES TO FUELS OR FIRES; FIRE-LIGHTERS
    • C10L2290/00—Fuel preparation or upgrading, processes or apparatus therefore, comprising specific process steps or apparatus units
    • C10L2290/06—Heat exchange, direct or indirect
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G OR C10K; LIQUIFIED PETROLEUM GAS; USE OF ADDITIVES TO FUELS OR FIRES; FIRE-LIGHTERS
    • C10L2290/00—Fuel preparation or upgrading, processes or apparatus therefore, comprising specific process steps or apparatus units
    • C10L2290/58—Control or regulation of the fuel preparation of upgrading process

Definitions

  • the present invention relates to a coal inactivation treatment apparatus that inactivates coal with a treatment gas containing oxygen.
  • coal that has been carbonized is activated and easily binds to oxygen, if it is stored as it is, it may react with oxygen in the air and spontaneously ignite with this reaction heat. For this reason, by exposing dry-distilled coal (dry-distilled coal) to a treatment gas atmosphere containing oxygen at a low concentration, oxygen is first bound to the coal to inactivate the coal, and during storage To prevent spontaneous ignition.
  • the carbonized coal is inactivated excessively, the oxygen content of the reformed coal increases, and the calorific value of the reformed coal decreases according to the oxygen content.
  • the deactivation of dry-distilled coal is insufficient, there is a risk that the reformed coal reacts with oxygen in the air and is spontaneously ignited by the reaction heat when the reformed coal is stored in, for example, a coal storage. is there. Therefore, in order to obtain a modified coal having a sufficient calorific value and having good handleability without spontaneous ignition even after storage for a long period of time, the modified coal should have an appropriate degree of inactivation. It needs to be adjusted.
  • Patent Document 1 a part of the reformed coal obtained by inactivating the carbonized coal is sampled and put into the evaluation apparatus body, and an oxygen-containing gas at a predetermined temperature is supplied to the evaluation apparatus body.
  • the temperature of the gas discharged from the evaluation apparatus main body is measured, and if the measured value exceeds a threshold value, it is determined that the degree of inactivation of the reformed coal is insufficient, and the carbonized coal is inactivated.
  • a coal inactivation treatment device is described that adjusts the oxygen concentration of the treatment gas at times.
  • Patent Document 2 describes a method of using a coal blend that prevents spontaneous ignition by mixing active coal and inert coal so that the oxygen absorption rate of the coal is confirmed to be safe. .
  • Patent Document 2 when active coal and inert coal are mixed, oxygen absorption rates of the active coal and the inert coal must be measured, respectively. In addition, the device itself may become complicated. In addition, if the amount of active coal is large, it is necessary to increase the amount of inactive coal mixed accordingly, and the energy to be input is enormous, which is not efficient.
  • the present invention has been made to solve the above-described problems, and is a coal inactivation treatment that can easily obtain a modified coal adjusted to an appropriate degree of inactivation.
  • the object is to provide a device.
  • the coal inactivation processing apparatus for solving the above-described problems includes a first processing apparatus main body for circulating coal from one side to the other, and oxygen in the first processing apparatus main body.
  • a first processing gas feeding means for feeding the first processing gas contained; a first processing gas oxygen concentration adjusting means for adjusting an oxygen concentration in the first processing gas; and adjusting a temperature of the first processing gas.
  • the first processing gas temperature adjusting means, and the first processing apparatus main body disposed upstream or downstream of the first processing apparatus main body, and the coal or the coal processed by the first processing apparatus main body is circulated inside from one side to the other.
  • a second processing apparatus main body a second processing gas feeding means for feeding a second processing gas containing oxygen at a predetermined concentration into the second processing apparatus main body, and the coal in the second processing apparatus main body.
  • a second processing gas feeding means for feeding a second processing gas containing oxygen at a predetermined concentration into the second processing apparatus main body, and the coal in the second processing apparatus main body.
  • the coal inactivation processing apparatus for solving the above-described problem is the coal inactivation processing apparatus according to the first invention described above, wherein the second process gas state detection means is the first processing gas state detection means. 2 is a second processing gas oxygen concentration detecting means for detecting the oxygen concentration of the second processing gas that has processed the coal in the main body of the processing apparatus, and the control means is information from the second processing gas oxygen concentration detecting means.
  • the first process gas oxygen concentration adjusting means is controlled to increase the oxygen concentration in the first process gas
  • the first processing gas oxygen concentration adjusting means is controlled so as to reduce the oxygen concentration in the first processing gas
  • a coal inactivation processing apparatus for solving the above-described problem is the coal inactivation processing apparatus according to the first invention described above, wherein the second process gas state detection means is configured to perform the first process.
  • Second processing gas carbon monoxide concentration detection means or second processing gas carbon dioxide concentration detection means for actually detecting the concentration of carbon monoxide or carbon dioxide in the second processing gas that has processed the coal in the main body of the two processing apparatus
  • the control means is configured to detect the concentration of carbon monoxide or carbon dioxide in the second process gas based on information from the second process gas carbon monoxide concentration detection means or the second process gas carbon dioxide concentration detection means.
  • the first processing gas oxygen concentration adjusting means is controlled to increase the oxygen concentration in the first processing gas, and the carbon monoxide concentration in the second processing gas.
  • the first processing gas oxygen concentration adjusting means is controlled to increase the oxygen concentration in the first processing gas, and the carbon monoxide concentration in the second processing gas.
  • the first processing gas oxygen concentration adjusting means is controlled to decrease the oxygen concentration of the first processing gas.
  • a coal inactivation processing apparatus for solving the above-described problem is the coal inactivation processing apparatus according to the first invention described above, wherein the second process gas state detection means is configured to perform the first process.
  • 2 is a second processing gas temperature detection means for actually detecting the temperature of the second processing gas that has processed the coal in the main body of the processing apparatus, and the control means includes information from the second processing gas temperature detection means.
  • the second process gas is controlled by controlling the first process gas oxygen concentration adjusting means so as to reduce the oxygen concentration in the first process gas.
  • the first processing gas oxygen concentration adjusting means is controlled to increase the oxygen concentration in the first processing gas.
  • a coal inactivation processing apparatus for solving the above-described problem is the coal inactivation processing apparatus according to any one of the first to fourth inventions described above, wherein the second processing gas is used.
  • the second processing gas temperature adjusting means for adjusting the temperature of the second processing gas is provided.
  • a coal inactivation processing apparatus for solving the above-described problem is the coal inactivation processing apparatus according to any one of the first to fifth inventions described above, wherein the second processing gas is used. And a second process gas oxygen concentration adjusting means for adjusting the oxygen concentration of the gas to a predetermined concentration.
  • the coal inactivation processing apparatus unlike the conventional coal inactivation processing apparatus, there is no need to sample a part of the reformed coal obtained by inactivating the dry distillation coal, and the second process. Based on the state of the exhaust gas exhausted from the apparatus main body, the oxygen concentration of the processing gas supplied to the first processing apparatus main body can be adjusted, and the carbonized carbon in the first processing apparatus main body and the second processing apparatus main body. Therefore, the modified coal adjusted to an appropriate degree of inactivation can be easily obtained.
  • the first processing unit main body of the first processing unit 110 that distributes the dry distillation coal 1, which is a coal obtained by drying and dry distillation of low quality coal, from one upper side to the other lower side.
  • a supply chamber (not shown) for supplying the carbonized coal 1 to the inside of the first processing apparatus main body 111 is provided at the upper portion of the (processing tower) 111.
  • the first treated carbonized carbon 2a processed by the first processing apparatus main body 111 is received from one upper side, and the inside is circulated downward toward the other.
  • a second processing apparatus main body 121 of the two processing apparatus 120 is provided.
  • the first processing apparatus main body 111 includes a leading end side of an introduction pipe 131 that introduces a processing gas (first processing gas) 103 containing oxygen into the first processing apparatus main body 111, and the first processing apparatus main body.
  • a plurality of base ends of exhaust pipes 132 for exhausting the processing gas 103 that has circulated through the interior of 111 are connected in the vertical direction.
  • the distal end side of the feed pipe 133 that feeds the processing gas 103 is connected to the proximal end side of the introduction pipe 131.
  • a proximal end side of the supply pipe 133 is connected to a distal end side of an air supply pipe 135 that supplies air 102 and a distal end side of a nitrogen supply pipe 134 that supplies nitrogen gas 101.
  • the base end side of the nitrogen supply pipe 134 is connected to a nitrogen gas supply source 112 such as a nitrogen gas tank.
  • the base end side of the air supply pipe 135 is open to the atmosphere.
  • Blowers 115 and 113 are provided in the middle of the air supply pipe 135 and the nitrogen supply pipe 134, respectively.
  • a heater 114 is provided in the middle of the feed pipe 133.
  • the processing gas 103 obtained by mixing the nitrogen gas 101 from the nitrogen gas supply source 112 and the external air 102 is heated by the heater 114 and the main body of the first processing apparatus. 111 can be fed into the interior.
  • the oxygen gas concentration in the processing gas 103 can be adjusted, and the heater 114 is adjusted. By doing so, the temperature of the process gas 103 can be adjusted.
  • the distal end side of the discharge pipe 132 is connected to the proximal end side of the delivery pipe 136.
  • a filter 116 for removing dust in the gas is provided in the middle of the delivery pipe 136.
  • the second processing apparatus main body 121 includes a leading end side of an introduction pipe 141 that introduces air 102 into the second processing apparatus main body 121 as a second processing gas containing oxygen at a predetermined concentration, and the second processing apparatus.
  • a base end side of a discharge pipe 142 that discharges the air 102 flowing through the inside of the main body 121 to the outside is connected to each other.
  • the proximal end side of the introduction pipe 141 is open to the atmosphere.
  • a blower 122 and a heater 123 are provided in the introduction pipe 141.
  • a filter 124 for removing dust in the gas is provided in the middle of the discharge pipe 142.
  • a CO sensor for detecting the concentration of carbon monoxide in the state of the gas flowing through the exhaust pipe 142.
  • Carbon concentration detecting means 125 is provided.
  • the CO sensor 125 is electrically connected to the input unit of the control device 130 which is a control means.
  • the output unit of the control device 130 is connected to the blowers 113, 115, 122 and the heaters 114, 123, and the control device 130 is based on information from the CO sensor 125, etc. 115, 122 and the heaters 114, 123 can be controlled.
  • the first processing apparatus main body 111 is an apparatus that has been conventionally used for inactivation processing, and exposes supplied coal, for example, dry-distilled coal 1, to an atmosphere having a predetermined oxygen concentration for a predetermined time. Any material can be used as long as it can be applied and is not easily affected by heat from the outside.
  • the second processing apparatus main body 121 has a structure similar to that of the first processing apparatus main body 111 and is smaller than the first processing apparatus main body 111, and is supplied coal, for example, primary processing. Any carbon-distilled coal 2a can be used as long as it can be exposed to an atmosphere having a predetermined oxygen concentration for a predetermined time and is not easily affected by heat from the outside.
  • the first processing gas is supplied from the nitrogen gas supply source 112, the blowers 113 and 115, the nitrogen supply pipe 134, the air supply pipe 135, the supply pipe 133, the introduction pipe 131, and the like.
  • the first processing gas oxygen concentration adjusting means is configured by the blowers 113, 115 and the like
  • the first processing gas temperature adjusting means is configured by the heater 114 and the like
  • the blower 122, the introduction pipe is configured.
  • 141 or the like constitutes a second process gas supply means
  • the heater 123 or the like constitutes a second process gas temperature adjusting means.
  • the CO sensor 125 or the like constitutes a second process gas state detection means for detecting the state of the second process gas, and more specifically, a second process gas oxygen concentration detection means.
  • the content of carbon monoxide in the external air 102 is on the order of ppm, and the oxygen in the air 102 is reduced by the reaction with the primary-treated carbonized carbon 2a in the second processing apparatus main body 121. Therefore, by detecting the carbon monoxide concentration in the air 102 exhausted from the second processing apparatus main body 121, the oxygen concentration in the air 102 exhausted from the second processing apparatus main body 121 indirectly. This is because it is detected.
  • the control device 130 When the carbonized coal 1 is supplied into the first processing apparatus main body 111 and the control device 130 is operated, the control device 130 has a predetermined oxygen concentration (for example, 9%) and a predetermined temperature (for example, the blowers 113 and 115 and the heater 114 are controlled so as to supply the processing gas 103 having a temperature of 50 ° C.) to the inside of the first processing apparatus main body 111, and a predetermined temperature (for example, 30 ° C.). The blower 122 and the heater 123 are controlled so that the air 102 (oxygen concentration: about 20%) is fed into the second processing apparatus main body 121.
  • a predetermined oxygen concentration for example, 9%
  • a predetermined temperature for example, the blowers 113 and 115 and the heater 114 are controlled so as to supply the processing gas 103 having a temperature of 50 ° C.
  • a predetermined temperature for example, 30 ° C.
  • the dry-distilled coal 1 supplied to the inside of the first processing apparatus main body 111 becomes primary-treated dry-distilled coal 2a that is oxidized by the process gas 103 and has reduced activity.
  • the primary treated carbonized charcoal 2a that has been subjected to such an inactivation process within the first processing apparatus main body 111 for a predetermined time (for example, 15 hours) is sent out from the lower part of the first processing apparatus main body 111.
  • the used processing gas 103 after the carbonized coal 1 is inactivated inside the first processing apparatus main body 111 is exhausted from the inside of the first processing apparatus main body 111 and is filtered by the filter 116. Is removed and exhausted to the outside.
  • the primary treated carbonized charcoal 2a sent from the first processing apparatus main body 111 is supplied into the second processing apparatus main body 121.
  • the primary-treated dry-distilled coal 2a supplied into the second processing apparatus main body 121 is further oxidized and further reduced in activity by the air 102 adjusted to a predetermined temperature (for example, 30 ° C.). It becomes the modified coal 3.
  • the reformed charcoal 3 that has been subjected to such an inactivation process within the second processing apparatus main body 121 for a predetermined time (for example, 1.5 hours) passes from the lower part of the second processing apparatus main body 121 to the outside. Discharged.
  • the inactive processing and cooling of the primary-treated carbonized carbon 2a are performed.
  • the used air 102 after the deactivation of the primary treated carbonized coal 2a inside the second processing apparatus main body 121 is exhausted from the inside of the second processing apparatus main body 121 for a predetermined time ( For example, the CO sensor 125 detects the carbon monoxide concentration every 2 hours) or continuously.
  • the air 102 after the detection of the carbon monoxide concentration is exhausted to the outside after the dust is removed by the filter 124.
  • the control device 130 determines whether the difference in carbon monoxide concentration is greater than a predetermined value C1 or not. It is determined whether the value is equal to or less than a predetermined value C1.
  • the control device 130 When the difference in the concentration of carbon monoxide is greater than the predetermined value C1, the control device 130 is still in a state where the oxidation activity of the primary treated carbonized carbon 2a is still high,
  • the blowers 113 and 115 are controlled so as to increase the oxygen concentration of the processing gas 103 by determining that the inactivation of the primary treated carbonized coal 2a by the processing gas 103 is insufficient. Thereby, the reaction between the carbonized carbon 1 and the oxygen of the process gas 103 can be accelerated inside the first processing apparatus main body 111.
  • the control device 130 When the difference in the concentration of carbon monoxide is less than or equal to the predetermined value C1, the control device 130 excessively converts the primary treated carbonized carbon 2a by the processing gas 103 inside the first processing device main body 111.
  • the blowers 113 and 115 are controlled so as to reduce the oxygen concentration of the processing gas 103 by determining that the gas is inactivated. Thereby, the reaction between the carbonized carbon 1 and the oxygen of the processing gas 103 can be suppressed inside the first processing apparatus main body 111.
  • the state of the air 102 exhausted from the second processing apparatus main body 121 is determined by the control device 130 based on information from the CO sensor 125 or the like.
  • the blower 113, 115 is controlled so as to adjust the oxygen concentration in the process gas 103, thereby appropriately adjusting the processing speed for inactivating the carbonized coal 1.
  • the degree of inactivation of the primary treated carbonized charcoal 2a fed from the first processing apparatus main body 111 to the second processing apparatus main body 121 is maintained in an appropriate range.
  • the deactivated carbonized coal 2a is deactivated at a constant rate by the oxygen of the air 102 inside the second treatment apparatus main body 121 and adjusted to an appropriate degree of deactivation.
  • a quality coal 3 can be obtained.
  • properties of the dry distillation coal 1 supplied into the first processing apparatus main body 111 for example, coal type, particle size, water content, storage period) Etc.
  • carbonization conditions for example, carbonization temperature, carbonization time, amount of carbonization, etc.
  • the oxygen concentration of the processing gas 103 fed to the first processing apparatus main body 111 can be adjusted based on the concentration, actually the carbon monoxide concentration, and the first processing apparatus main body 111 and the second processing apparatus main body Since the dry distillation coals 1 and 2a can be inactivated at 121, the modified coal 3 adjusted to an appropriate degree of inactivation can be easily obtained.
  • the outside air 102 contains only about 2 ppm or less of carbon monoxide. Since carbon monoxide is generated by the deactivation treatment of the primary treated carbonized coal 2a, the activity of the primary treated carbonized coal 2a is increased based on the carbon monoxide concentration detected by the CO sensor 125. The accuracy can be specified. Therefore, the oxygen concentration of the process gas 103 is more appropriately adjusted, and the carbonized coals 1 and 2a are more appropriately inactivated by the first processing apparatus main body 111 and the second processing apparatus main body 121. Therefore, the modified coal 3 adjusted to a more appropriate degree of inactivation can be easily obtained.
  • FIG. 1 A second embodiment of the coal inactivation processing apparatus according to the present invention will be described with reference to FIG.
  • This embodiment has a configuration in which the installation location of the second processing apparatus main body included in the first embodiment shown in FIG. 1 and described above is changed.
  • the other configurations are generally the same as those shown in FIG. 1 and described above, and the same devices are denoted by the same reference numerals, and redundant descriptions are omitted as appropriate.
  • the dry distillation coal 1 which is a coal obtained by drying and dry distillation of low quality coal, is circulated inside from one upper side to the other lower side.
  • a second processing device main body 121 of the second processing device 220 is provided below the second processing apparatus main body 121. Below the second processing apparatus main body 121, the first treated carbonized carbon 2b processed by the second processing apparatus main body 121 is received from one upper side, and the inside is circulated downward toward the other.
  • One processing apparatus main body 111 is provided.
  • the second processing apparatus main body 121 includes a distal end side of an introduction pipe 141 that introduces a processing gas 203 into the second processing apparatus main body 121 as a second processing gas containing oxygen at a predetermined concentration, and the second processing apparatus.
  • a base end side of a discharge pipe 142 that discharges the processing gas 203 circulated inside the apparatus main body 121 to the outside is connected to each other.
  • a tip end side of a nitrogen supply pipe 223 for supplying the nitrogen gas 201 is connected.
  • the base end side of the nitrogen supply pipe 223 is connected to a nitrogen gas supply source 221 such as a nitrogen gas tank.
  • a blower 222 is provided in the middle of the nitrogen supply pipe 223.
  • the processing gas 203 obtained by mixing the nitrogen gas 201 from the nitrogen gas supply source 221 and the external air 102 is heated by the heater 123, and the second processing apparatus main body. 121 can be fed into the interior.
  • the processing gas 203 can be a second processing gas containing oxygen at a predetermined concentration, By adjusting the heater 123, the temperature of the processing gas 203 can be adjusted.
  • the CO sensor 125 provided between the proximal end side of the discharge pipe 142 and the filter 124 is electrically connected to the input unit of the control device 230 that is a control means.
  • the output unit of the control device 230 is connected to the blowers 113, 115, 122, 222 and the heaters 114, 123, and the control device 230 is based on information from the CO sensor 125 and the like.
  • the operation of the blowers 113, 115, 122, 222 and the heaters 114, 123 can be controlled.
  • the nitrogen gas supply source 221, the blowers 122 and 222, the introduction pipe 141, the nitrogen supply pipe 223, and the like constitute a second processing gas supply unit, and the blowers 122 and 222
  • the second process gas oxygen concentration adjusting means is configured by the above.
  • the control device 230 When the carbonized coal 1 is supplied into the second processing apparatus main body 121 and the control device 230 is operated, the control device 230 has a predetermined oxygen concentration (for example, 2%) and a predetermined temperature (for example, the blowers 122 and 222 and the heater 123 are controlled so that the processing gas 203 having a temperature of 50 ° C. is fed into the second processing apparatus main body 121 and a predetermined oxygen concentration (for example, 2%).
  • the blowers 113 and 115 and the heater 114 are controlled so that the processing gas 103 having a predetermined temperature (for example, 50 ° C.) is supplied into the first processing apparatus main body 111. That is, the processing gas 203, which is a second processing gas in which oxygen is adjusted to a predetermined concentration, is fed into the second processing apparatus main body 121.
  • the dry-distilled coal 1 supplied to the inside of the second processing apparatus main body 121 becomes primary-treated dry-distilled coal 2b that is oxidized by the process gas 203 and has reduced activity.
  • the primary treated carbonized charcoal 2b that has been subjected to such inactivation processing within the second processing apparatus main body 121 for a predetermined time (for example, 1.5 hours) is supplied from the lower part of the second processing apparatus main body 121. Sent out.
  • the used processing gas 203 after inactivating the carbonized coal 1 inside the second processing apparatus main body 121 is exhausted from the inside of the second processing apparatus main body 121 and is used for a predetermined time (for example, 2
  • the CO sensor 125 detects the carbon monoxide concentration every time) or continuously.
  • the used processing gas 203 after the oxygen concentration is detected is exhausted to the outside after dust is removed by the filter 124.
  • the primary treated carbonized charcoal 2b sent from the second processing apparatus main body 121 is supplied into the first processing apparatus main body 111.
  • the primary treated carbonized carbon 2b supplied to the inside of the first processing apparatus main body 111 is oxidized again by the processing gas 103, and the activity is further reduced as compared with the primary treated carbonized carbon 2b.
  • Charcoal 3 The reformed coal 3 that has been subjected to such an inactivation process within the first processing apparatus main body 111 for a predetermined time (for example, 15 hours) is discharged from the lower part of the first processing apparatus main body 111 to the outside. .
  • the used processing gas 103 after the first-processed dry-distilled coal 2b is deactivated inside the first processing apparatus main body 111 is exhausted from the inside of the first processing apparatus main body 111 and is The dust is removed by the filter 116 and exhausted to the outside.
  • the control device 230 determines the difference in carbon monoxide concentration as predetermined. It is determined whether the value is greater than the value C2 or less than the predetermined value C2. This is because the activity of the dry distillation coal 1 is obtained from the difference in the carbon monoxide concentration, and the oxygen adsorption necessary for obtaining the modified coal 3 adjusted to an appropriate degree of inactivation from the activity of the dry distillation coal 1.
  • the oxygen adsorption amount necessary for obtaining the reformed coal 3 adjusted to the appropriate degree of inactivation and the oxygen of the processing gas 203 discharged from the inside of the second processing apparatus 121 can be obtained. This is because the oxygen concentration of the processing gas 103 supplied to the inside of the first processing apparatus main body 111 can be obtained from the concentration.
  • the control device 230 uses the processing gas 103 whose oxygen concentration is adjusted by the blowers 113 and 115 to change the primary-treated dry-distilled coal 2b. Even if the deactivation treatment is performed, the oxidation activity of the reformed coal 3 is still high, and it is determined that the deactivation of the reformed coal 3 is insufficient, and the oxygen concentration of the process gas 103 is increased.
  • the blowers 113 and 115 are controlled so that the Thereby, the reaction between the primary treated carbonized carbon 2b and the oxygen of the processing gas 103 can be accelerated in the first processing apparatus main body 111.
  • the control device 230 uses the processing gas 103 whose oxygen concentration is adjusted by the blowers 113 and 115 to change the primary-treated dry-distilled coal 2b. It is determined that the reformed coal 3 becomes excessively inactivated when the inactivation process is performed, and the blowers 113 and 115 are controlled so as to reduce the oxygen concentration of the process gas 103. Thereby, in the inside of the first processing apparatus main body 111, the reaction between the primary-treated dry-distilled coal 2b and oxygen of the processing gas 103 can be suppressed.
  • the state of the processing gas 203 exhausted from the second processing apparatus main body 121 by the control device 230 based on information from the CO sensor 125 is predetermined.
  • the blower 113, 115 is controlled so as to adjust the oxygen concentration in the process gas 103, so that the treatment speed for inactivating the primary treated carbonized carbon 2b is increased.
  • the modified coal 3 adjusted to an appropriate degree of inactivation can be obtained.
  • FIG. 1 3rd embodiment of the coal inactivation processing apparatus which concerns on this invention is described based on FIG.
  • This embodiment has a configuration in which an inert gas is mixed with an air gas that is a second processing gas supplied to the second processing apparatus main body included in the first embodiment shown in FIG. 1 and described above. It has become.
  • the other configurations are generally the same as those shown in FIG. 1 and described above, and the same devices are denoted by the same reference numerals, and redundant descriptions are omitted as appropriate.
  • an inert gas supply pipe 325 that supplies an inert gas 301 is connected between the blower 122 of the introduction pipe 141 and the heater 123.
  • the base end side of the inert gas supply pipe 325 is connected to the processing gas 103 exhausted from the inside of the first processing apparatus main body 111 and an inert gas supply source 321 such as a nitrogen gas tank.
  • a blower 322 is provided in the middle of the inert gas supply pipe 325.
  • the processing gas 303 obtained by mixing the inert gas 301 from the inert gas supply source 321 and the external air 102 is heated by the heater 123 and the second processing apparatus. 320 can be fed into the inside of the second processing apparatus main body 121.
  • the processing gas 303 can be a second processing gas containing oxygen at a predetermined concentration.
  • the heater 123 the temperature of the processing gas 303 can be adjusted.
  • a CO sensor 323 and an O 2 sensor 324 for detecting the carbon monoxide concentration and the oxygen concentration of the processing gas 303 flowing through the introduction pipe 141 are provided. Is provided.
  • the CO sensors 125 and 323 and the O 2 sensor 324 are electrically connected to an input unit of a control device 330 serving as control means.
  • the output unit of the control device 330 is electrically connected to the blowers 113, 115, 122, 322 and the heaters 114, 123, respectively.
  • the control device 330 includes the CO sensors 125, 323 and the O sensors.
  • the operations of the blowers 113, 115, 122, 322 and the heaters 114, 123 can be controlled based on information from the two sensors 324 and the like.
  • the inert gas supply source 321, the blowers 122 and 322, the introduction pipe 141, the inert gas supply pipe 325, and the like constitute second process gas supply means, and the blower 122, 322 and the like constitute second process gas oxygen concentration adjusting means.
  • the control device 330 When the carbonized coal 1 is supplied into the first processing apparatus main body 111 and the control device 330 is operated, the control device 330 has a predetermined oxygen concentration (for example, 9%) and a predetermined temperature (for example, the blowers 113 and 115 and the heater 114 are controlled so as to supply the processing gas 103 having a temperature of 50 ° C.) to the inside of the first processing apparatus main body 111, and a predetermined temperature (for example, 30 ° C.). The blowers 122 and 322 and the heater 123 are controlled so that the processing gas 303 having a predetermined oxygen concentration (for example, 2%) is supplied into the second processing apparatus main body 121.
  • a predetermined oxygen concentration for example, 9%
  • a predetermined temperature for example, the blowers 113 and 115 and the heater 114 are controlled so as to supply the processing gas 103 having a temperature of 50 ° C.
  • a predetermined temperature for example, 30 ° C.
  • the dry-distilled coal 1 supplied to the inside of the first processing apparatus main body 111 becomes primary-treated dry-distilled coal 2a that is oxidized by the process gas 103 and has reduced activity.
  • the primary treated carbonized charcoal 2a that has been subjected to such an inactivation process within the first processing apparatus main body 111 for a predetermined time (for example, 15 hours) is sent out from the lower part of the first processing apparatus main body 111.
  • the primary treated carbonized charcoal 2a sent from the first processing apparatus main body 111 is supplied into the second processing apparatus main body 121.
  • the primary treated carbonized carbon 2a supplied into the second processing apparatus main body 121 is further oxidized by the processing gas 303 adjusted to a predetermined temperature (for example, 30 ° C.) and a predetermined oxygen concentration.
  • a predetermined temperature for example, 30 ° C.
  • a predetermined oxygen concentration for example, the modified coal 3 whose activity is further reduced.
  • the reformed charcoal 3 that has been subjected to such an inactivation process within the second processing apparatus main body 121 for a predetermined time (for example, 1.5 hours) passes from the lower part of the second processing apparatus main body 121 to the outside. Discharged.
  • the inactive processing and cooling of the primary-treated carbonized carbon 2a are performed.
  • the used processing gas 303 after the deactivation of the primary treated carbonized coal 2a inside the second processing apparatus main body 121 is exhausted from the inside of the second processing apparatus main body 121 for a predetermined time.
  • the CO sensor 125 detects the carbon monoxide concentration every (for example, 2 hours) or continuously.
  • the processing gas 303 fed into the second processing apparatus main body 121 has a carbon monoxide concentration by the CO sensor 323 and the O 2 sensor 324 every predetermined time (for example, 2 hours) or continuously. And oxygen concentration are detected respectively.
  • the control device 330 determines whether the difference in carbon monoxide concentration is greater than a predetermined value C3 or less than the predetermined value C3. to decide.
  • the control device 330 When the difference in the concentration of the carbon monoxide is larger than the predetermined value C3, the control device 330 is in a state where the oxidation activity of the primary treated carbonized carbon 2a is still high, the blowers 113 and 115 are controlled so as to increase the oxygen concentration of the processing gas 103 by determining that the inactivation of the primary treated carbonized coal 2a by the processing gas 103 is insufficient. Thereby, the reaction between the carbonized carbon 1 and the oxygen of the process gas 103 can be accelerated inside the first processing apparatus main body 111.
  • the control device 330 When the difference in the concentration of carbon monoxide is less than or equal to the predetermined value C3, the control device 330 excessively converts the primary treated dry-distilled coal 2a by the processing gas 103 inside the first processing device main body 111.
  • the blowers 113 and 115 are controlled so as to reduce the oxygen concentration of the processing gas 103 by determining that the gas is inactivated. Thereby, the reaction between the carbonized carbon 1 and the oxygen of the processing gas 103 can be suppressed inside the first processing apparatus main body 111.
  • the control device 330 is exhausted from the second processing apparatus main body 121 based on information from the CO sensors 125, 323 and the O 2 sensor 324.
  • the blown coals 1 and 150 are controlled so as to adjust the oxygen concentration in the processing gas 103 to inactivate the carbonized coal 1. Therefore, the degree of inactivation of the primary treated carbonized carbon 2a fed from the first processing apparatus main body 111 to the second processing apparatus main body 121 is maintained in an appropriate range. It becomes like this.
  • the deactivated carbonized coal 2a is deactivated at a constant rate by the oxygen of the treatment gas 303 inside the second treatment apparatus main body 121 and adjusted to an appropriate degree of inactivation.
  • the modified charcoal 3 can be obtained.
  • properties of the dry distillation coal 1 supplied into the first processing apparatus main body 111 for example, coal type, particle size, water content, storage period) Etc.
  • carbonization conditions for example, carbonization temperature, carbonization time, amount of carbonization, etc.
  • the deactivation treatment is performed under conditions necessary and sufficient for the properties of the carbonized coal 1 and the carbonization conditions. Can be done easily.
  • the oxygen concentration of the processing gas 103 supplied to the first processing apparatus main body 111 is determined.
  • the carbonized coals 1 and 2a can be more appropriately inactivated by the first processing apparatus main body 111 and the second processing apparatus main body 121.
  • the modified coal 3 adjusted to the degree of activation can be easily obtained.
  • the CO sensor 125 is provided in the exhaust pipe 142, and the carbon monoxide concentrations of the used air 102 and the processing gases 203 and 303 exhausted from the second processing apparatus main body 121 are actually measured. Although detected, as another embodiment, for example, by providing a CO 2 sensor (second processing gas carbon dioxide concentration detection means), used air 102 discharged from the second processing apparatus main body 121 is used. It is also possible to actually detect the carbon dioxide concentration of the processing gases 203 and 303.
  • a CO 2 sensor second processing gas carbon dioxide concentration detection means
  • used air 102 and processing gases 203 and 303 discharged from the second processing apparatus main body 121 are used. actually detects the oxygen concentration of, information from the O 2 sensor, data of the oxygen concentration in the air, based on the information and the like from the O 2 sensor 324, when the difference of the oxygen concentration is smaller than the predetermined value C4 is
  • the blowers 113 and 115 are controlled so as to increase the oxygen concentration of the processing gas 103 to accelerate the reaction between the dry distillation coal 1 or the primary treated dry distillation coal 2b and the oxygen of the processing gas 103,
  • the blowers 113 and 115 are controlled so as to reduce the oxygen concentration of the processing gas 103, so It is possible to suppress the primary treated distilled charcoal 2b the reaction with oxygen of the processing gas 103. That is, even in such an embodiment, the modified coal 3 adjusted to an appropriate degree of inactivation can be easily obtained as
  • the temperatures of the used air 102 and the processing gases 203 and 303 exhausted from the second processing apparatus main body 121 are provided.
  • the temperature difference is equal to or less than a predetermined value T1 based on information from the temperature sensor, operation of the heater 123, etc., the blower 113, so as to reduce the oxygen concentration of the processing gas 103 is detected.
  • the reaction between the carbonized carbon 1 or the primary treated carbonized carbon 2b and the oxygen of the processing gas 103 is suppressed, and when the temperature difference is larger than the predetermined value T1, the processing gas
  • the blowers 113 and 115 are controlled so as to increase the oxygen concentration of 103, and the acid of the dry-distilled coal 1 or the primary-treated dry-distilled coal 2b and the process gas 103 is controlled. It can accelerate the reaction with. That is, even in such an embodiment, the modified coal 3 adjusted to an appropriate degree of inactivation can be easily obtained as in the above-described embodiment.
  • the oxygen concentration of the processing gas 103 is adjusted based on the difference in carbon monoxide concentration, the difference in carbon dioxide concentration, the difference in oxygen concentration, and the difference in temperature. It is also possible to adjust the oxygen concentration of the processing gas 103 based on the carbon 102, the carbon monoxide concentration, the carbon dioxide concentration, the oxygen concentration, or the temperature itself of the air 102, the processing gases 203 and 303 exhausted from the atmosphere. It is.
  • the coal inactivation treatment apparatus according to the present invention can easily obtain the modified coal adjusted to an appropriate degree of inactivation, it can be used extremely beneficially in the steel industry and the power generation industry.

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  • Physics & Mathematics (AREA)
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  • Chemical Kinetics & Catalysis (AREA)
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AU2013327959A AU2013327959B2 (en) 2012-10-09 2013-09-30 Coal deactivation processing device
CN201380035860.2A CN104411808B (zh) 2012-10-09 2013-09-30 煤去活化处理装置
US14/408,784 US9758741B2 (en) 2012-10-09 2013-09-30 Coal deactivation processing device

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