JPH0239291B2 - - Google Patents
Info
- Publication number
- JPH0239291B2 JPH0239291B2 JP55104621A JP10462180A JPH0239291B2 JP H0239291 B2 JPH0239291 B2 JP H0239291B2 JP 55104621 A JP55104621 A JP 55104621A JP 10462180 A JP10462180 A JP 10462180A JP H0239291 B2 JPH0239291 B2 JP H0239291B2
- Authority
- JP
- Japan
- Prior art keywords
- ozone
- particulates
- heat
- fine particles
- exhaust gas
- 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 - Lifetime
Links
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 claims description 9
- 239000002245 particle Substances 0.000 claims description 8
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 6
- 229910052799 carbon Inorganic materials 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 6
- 239000010419 fine particle Substances 0.000 description 9
- 238000002485 combustion reaction Methods 0.000 description 3
- 239000007789 gas Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 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
- 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
- Processes For Solid Components From Exhaust (AREA)
- Gasification And Melting Of Waste (AREA)
- Filtering Of Dispersed Particles In Gases (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 emits air from a diesel engine.
This invention relates to a method for treating fine particles mainly consisting of carbon particles.
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 fine particles is said to be on the order of submicrons, and when ordinary materials are used, they cause early clogging and cannot function effectively for a long period of time. As an improvement over these shortcomings, there is a device or method that uses a heat-resistant material to capture fine particles, reaches a predetermined clogging state, and then burns them using a burner or electric heating means to regenerate the overfunction. It has been known. However, even in this case, there are the following drawbacks. That is, since fine particles made of carbon particles have a high ignition temperature of about 500° C. and a slow burning rate, a heating means for maintaining a predetermined temperature for a predetermined time is required, resulting in large energy loss. 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
子の処理方法を図を用いて説明する。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、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
らのオゾンを噴射するものである。供給装置５に
は、オゾン発生装置を設けることもできる。 DESCRIPTION OF THE PREFERRED EMBODIMENTS The method of the present invention for treating particulates discharged from a diesel engine will be explained with reference to the drawings. In the figure, a heat-resistant filter 4 densely filled with steel wool is disposed in an exhaust pipe 3 near an exhaust manifold 2 of a diesel engine 1, and particulates consisting of carbon particles in the exhaust gas are captured by the filter and supplied to the filter by a supply device 5. It injects ozone from The supply device 5 can also be provided with an ozone generator.
図において排気中の微粒子は、耐熱フイルタ４
に捕捉される。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耐熱フイルタ４
は排熱により加熱される。この状態で供給装置５
からオゾンを噴射し捕捉された微粒子に接触させ
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オゾンの作用によつて低下し
かつ速くなる。この現象はオゾンの有する周知な
特性に基づくものであつて、カーボンがオゾンに
よつて改質されるために生ずるものと考えられ
る。 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 heat-resistant filter 4
is heated by waste heat. In this state, the supply device 5
When ozone is injected from the tank and comes into contact with the captured particles, the particles ignite and burn. In this case, the ignition temperature as well as the combustion rate are lowered and increased by the action of ozone. This phenomenon is based on the well-known properties of ozone, and is thought to occur because carbon is modified by ozone.
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、微
粒子の着火温度を低下させ燃焼速度を速めるよう
に改質するオゾンを接触させ、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 this is brought into contact with ozone, which is reformed to lower the ignition temperature of the fine particles and increase the combustion speed, to burn the fine particles. Since the filter function is regenerated by dissipation, fine particles can be permanently removed without requiring a large amount of energy for combustion.
図は、本発明方法を説明するためのデイゼル機
関の断面図である。
４……耐熱フイルタ、５……オゾン供給装置。
The figure is a sectional view of a diesel engine for explaining the method of the present invention. 4...Heat-resistant filter, 5...Ozone supply device.
Claims (1)
カーボン粒子から成る微粒子を耐熱フイルタによ
り捕捉し、所定目づまりに至つた際に、排気ガス
中にオゾンを噴射し、捕捉した前記微粒子を着
火、燃焼させるようにした排気ガス中の微粒子の
処理方法。1. In the exhaust gas emitted from a diesel engine,
A method for treating particulates in exhaust gas, in which particulates made of carbon particles are captured by a heat-resistant filter, and when a predetermined clogging occurs, ozone is injected into the exhaust gas to ignite and burn the captured particulates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10462180A JPS5730524A (en) | 1980-07-30 | 1980-07-30 | Treatment of fine particles in exhaust gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10462180A JPS5730524A (en) | 1980-07-30 | 1980-07-30 | Treatment of fine particles in exhaust gas |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5730524A JPS5730524A (en) | 1982-02-18 |
| JPH0239291B2 true JPH0239291B2 (en) | 1990-09-05 |
Family
ID=14385508
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10462180A Granted JPS5730524A (en) | 1980-07-30 | 1980-07-30 | Treatment of fine particles in exhaust gas |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5730524A (en) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02229510A (en) * | 1989-03-02 | 1990-09-12 | Kikkoman Corp | Filter |
| DE19900967A1 (en) * | 1999-01-13 | 2000-07-20 | Volkswagen Ag | Device for cleaning the exhaust gas of an internal combustion engine |
| DE19904068A1 (en) * | 1999-02-02 | 2000-08-03 | Volkswagen Ag | Device for cleaning the exhaust gas of an internal combustion engine |
| DE10201928A1 (en) * | 2002-01-19 | 2003-07-31 | Eberspaecher J Gmbh & Co | Exhaust system of an internal combustion engine |
| DE10231620A1 (en) * | 2002-07-12 | 2004-01-29 | Robert Bosch Gmbh | Device and method for exhaust gas purification of an internal combustion engine |
| JP4725177B2 (en) * | 2005-04-26 | 2011-07-13 | 株式会社豊田中央研究所 | Exhaust gas purification method and exhaust gas purification device |
| JP4263711B2 (en) * | 2005-09-16 | 2009-05-13 | トヨタ自動車株式会社 | Exhaust gas purification device for internal combustion engine |
| JP2007132241A (en) * | 2005-11-09 | 2007-05-31 | Toyota Motor Corp | Exhaust emission control device for internal combustion engine |
| JP4270224B2 (en) * | 2005-11-09 | 2009-05-27 | トヨタ自動車株式会社 | Exhaust gas purification device for internal combustion engine |
| JP4582806B2 (en) | 2006-06-09 | 2010-11-17 | 株式会社豊田中央研究所 | Exhaust gas purification device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4936170A (en) * | 1972-08-05 | 1974-04-03 | ||
| JPS4984953A (en) * | 1972-12-20 | 1974-08-15 | ||
| JPS5037674A (en) * | 1973-08-07 | 1975-04-08 |
-
1980
- 1980-07-30 JP JP10462180A patent/JPS5730524A/en active Granted
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4936170A (en) * | 1972-08-05 | 1974-04-03 | ||
| JPS4984953A (en) * | 1972-12-20 | 1974-08-15 | ||
| JPS5037674A (en) * | 1973-08-07 | 1975-04-08 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5730524A (en) | 1982-02-18 |
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