JPS6347496B2 - - Google Patents
Info
- Publication number
- JPS6347496B2 JPS6347496B2 JP10386980A JP10386980A JPS6347496B2 JP S6347496 B2 JPS6347496 B2 JP S6347496B2 JP 10386980 A JP10386980 A JP 10386980A JP 10386980 A JP10386980 A JP 10386980A JP S6347496 B2 JPS6347496 B2 JP S6347496B2
- Authority
- JP
- Japan
- Prior art keywords
- heat
- fine particles
- aqueous solution
- filter
- resistant filter
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 239000010419 fine particle Substances 0.000 claims description 12
- 239000007800 oxidant agent Substances 0.000 claims description 9
- 239000007864 aqueous solution Substances 0.000 claims description 8
- 239000002245 particle Substances 0.000 claims description 7
- 238000002485 combustion reaction Methods 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 5
- 229910052799 carbon Inorganic materials 0.000 claims description 5
- 239000007921 spray Substances 0.000 claims description 2
- 239000012286 potassium permanganate Substances 0.000 description 3
- 239000007789 gas Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- XTEGARKTQYYJKE-UHFFFAOYSA-M Chlorate Chemical class [O-]Cl(=O)=O XTEGARKTQYYJKE-UHFFFAOYSA-M 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005485 electric heating Methods 0.000 description 1
- 239000003779 heat-resistant material Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002823 nitrates Chemical class 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000002918 waste heat Substances 0.000 description 1
- 210000002268 wool Anatomy 0.000 description 1
Landscapes
- Exhaust Gas After Treatment (AREA)
- Gasification And Melting Of Waste (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
- Processes For Solid Components From Exhaust (AREA)
- Incineration Of Waste (AREA)
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
Description
【発明の詳細な説明】
本願は、デイゼル機関あるいは金属溶解炉の煙
道等の燃焼装置から大気へ排出される、主として
カーボン粒子から成る微粒子の処理方法に関す
る。DETAILED DESCRIPTION OF THE INVENTION The present application relates to a method for treating particulates consisting mainly of carbon particles discharged into the atmosphere from a combustion device such as a flue of a diesel engine or a metal melting furnace.
上記微粒子は、大気保全の必要性から、大気へ
放出される前に分離除去されなければならない。
そのため、過器を用いて処理することが考えら
れる。しかしながら上記微粒子の粒径は、サブミ
クロンオーダと云われており、通常の材を用い
たものでは早期目づまりを生起し長期にわたり有
効に機能し得ない。このような欠点を改良したも
のとして、耐熱性の材を用いて微粒子を捕捉し
所定の目づまり状態に至つた後、これをバーナや
電熱手段により燃焼させて過機能を再生させる
ようにした装置あるいは方法が知られている。し
かしこの場合でも次のような欠点をともなう。す
なわち、カーボン粒子から成る微粒子は、その着
火温度が約500℃の高温でかつその燃焼速度も緩
慢であるから、所定温度を所定時間持続する加熱
手段を必要とし、エネルギ損失も大きい。特に加
熱手段が限定されるデイゼル機関においては致命
的な欠点となる。 The above-mentioned particulates must be separated and removed before being released into the atmosphere due to the need to preserve the atmosphere.
Therefore, it is possible to treat it using a filter. However, the particle size of the above-mentioned fine particles is said to be on the order of submicrons, and if ordinary materials are used, clogging occurs early and cannot function effectively for a long period of time. As an improvement over these shortcomings, a device that uses a heat-resistant material to trap fine particles and, after reaching a predetermined clogging state, burns the fine particles using a burner or electric heating means to regenerate the overfunction. Or there is a known method. However, even in this case, there are the following drawbacks. That is, since the fine particles made of carbon particles have a high ignition temperature of about 500° C. and a slow burning rate, a heating means to maintain a predetermined temperature for a predetermined time is required, and energy loss is also large. This is a fatal drawback, especially in diesel engines where heating means are limited.
本願は上記に鑑み、外部エネルギを多量に消費
することなくカーボン粒子から成る微粒子を分離
除去するようにした処理方法を提供するものであ
る。 In view of the above, the present application provides a processing method that separates and removes fine particles consisting of carbon particles without consuming a large amount of external energy.
本発明方法をデイゼル機関から排出される微粒
子の処理を例に説明する。図において、デイゼル
機関１の排気マニフオルド２近傍の排気管３に、
たとえばスチールウールを密に充填した耐熱フイ
ルタ４を配設し排気中の、カーボン粒子から成る
微粒子を該フイルタに捕捉し、これに供給装置５
からの強酸化剤水溶液を噴霧するものである。強
酸化剤は、塩素酸塩、硝酸塩、過マンガン酸カリ
等である。 The method of the present invention will be explained by taking as an example the treatment of particulates discharged from a diesel engine. In the figure, in the exhaust pipe 3 near the exhaust manifold 2 of the diesel engine 1,
For example, a heat-resistant filter 4 densely filled with steel wool is disposed to capture fine particles consisting of carbon particles in the exhaust gas, and a supply device 5
It sprays a strong oxidizing agent aqueous solution. Strong oxidizing agents include chlorates, nitrates, potassium permanganate, and the like.
図において排気中の微粒子は、耐熱フイルタ４
により捕捉される。捕捉が進むと耐熱フイルタ４
は所定の目づまり状態に至るが同時にフイルタ４
は排熱により加熱される。この状態で強酸化剤の
水溶液を供給装置５から耐熱フイルタ４に向け噴
霧し前記微粒子に付着させると、微粒子は着火燃
焼する。この場合の着火温度並びに燃焼速度は強
酸化剤水溶液を噴霧しない場合に比し低くかつ速
い。このような現象は、強酸化剤の有する周知な
性質に基づき生じる。具体的な実施例による効果
を詰すと、図において強酸化剤水溶液として過マ
ンガン酸カリ水溶液を用いた場合、250〜300℃で
着火しそのまま燃焼を持続した。過マンガン酸カ
リ水溶液を噴霧しない場合は、約500℃で着火し
たが、燃焼を持続せず消火してしまつた。 In the figure, particulates in the exhaust air are filtered through a heat-resistant filter 4.
captured by As the capture progresses, the heat-resistant filter 4
reaches a predetermined clogging state, but at the same time the filter 4
is heated by waste heat. In this state, when an aqueous solution of a strong oxidizing agent is sprayed from the supply device 5 toward the heat-resistant filter 4 and attached to the fine particles, the fine particles are ignited and burned. In this case, the ignition temperature and combustion speed are lower and faster than when the strong oxidizer aqueous solution is not sprayed. Such a phenomenon occurs due to the well-known properties of strong oxidizing agents. To summarize the effects of specific examples, as shown in the figure, when a potassium permanganate aqueous solution was used as the strong oxidizing agent aqueous solution, it ignited at 250 to 300°C and continued to burn. When the potassium permanganate aqueous solution was not sprayed, the fire ignited at approximately 500°C, but the combustion did not sustain and the fire was extinguished.
以上のように本発明の処理方法は、排気ガス中
の微粒子を一旦耐熱フイルタに捕捉しこれと、着
火温度を低下させかつ燃焼速度を速める強酸化剤
水溶液とを接触させ微粒子を燃焼消失させてフイ
ルタ機能を再生させるものであるから、燃焼に多
量のエネルギを要することなく微粒子を永続的に
除去できる。 As described above, in the treatment method of the present invention, fine particles in exhaust gas are once captured in a heat-resistant filter, and the fine particles are brought into contact with a strong oxidizer aqueous solution that lowers the ignition temperature and increases the combustion speed, thereby burning and eliminating the fine particles. Since it regenerates the filter function, it can permanently remove particulates without requiring a large amount of energy for combustion.
第１図、第２図は本発明方法を説明するための
デイゼル機関断面図である。
４……耐熱フイルタ、５……強酸化剤供給装
置。
1 and 2 are sectional views of a diesel engine for explaining the method of the present invention. 4...Heat-resistant filter, 5...Strong oxidizer supply device.
Claims (1)
した耐熱フイルタに、カーボン粒子から成る微粒
子を捕捉しこれに強酸化剤水溶液を噴霧し捕捉し
た微粒子を着火燃焼させてフイルタを再生する排
気ガス中の微粒子の処理方法。1 Exhaust that captures fine particles consisting of carbon particles in a heat-resistant filter connected to a combustion device and arranged in the exhaust system near the device, sprays a strong oxidizing agent aqueous solution onto the heat-resistant filter, ignites and burns the captured particles, and regenerates the filter. A method for treating particulates in gas.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10386980A JPS5730522A (en) | 1980-07-29 | 1980-07-29 | Treatment of fine particles in exhaust gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10386980A JPS5730522A (en) | 1980-07-29 | 1980-07-29 | Treatment of fine particles in exhaust gas |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5730522A JPS5730522A (en) | 1982-02-18 |
| JPS6347496B2 true JPS6347496B2 (en) | 1988-09-22 |
Family
ID=14365438
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10386980A Granted JPS5730522A (en) | 1980-07-29 | 1980-07-29 | Treatment of fine particles in exhaust gas |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5730522A (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| YU44014B (en) * | 1984-08-21 | 1990-02-28 | Sava Kranj | Offset rubber lining |
| FR2780096B1 (en) * | 1998-06-22 | 2000-09-08 | Rhodia Chimie Sa | PROCESS FOR THE COMBUSTION TREATMENT OF CARBON PARTICLES IN AN EXHAUST CIRCUIT OF AN INTERNAL COMBUSTION ENGINE |
| JP2016094845A (en) | 2014-11-12 | 2016-05-26 | いすゞ自動車株式会社 | Internal combustion engine and particular substance removal method of internal combustion engine |
-
1980
- 1980-07-29 JP JP10386980A patent/JPS5730522A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5730522A (en) | 1982-02-18 |
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