JPS6238606B2 - - Google Patents
Info
- Publication number
- JPS6238606B2 JPS6238606B2 JP54001413A JP141379A JPS6238606B2 JP S6238606 B2 JPS6238606 B2 JP S6238606B2 JP 54001413 A JP54001413 A JP 54001413A JP 141379 A JP141379 A JP 141379A JP S6238606 B2 JPS6238606 B2 JP S6238606B2
- Authority
- JP
- Japan
- Prior art keywords
- hydrogen
- cooling zone
- zone
- chlorine
- organic material
- 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
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 28
- 238000001816 cooling Methods 0.000 claims description 23
- 238000002485 combustion reaction Methods 0.000 claims description 21
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 17
- 239000001257 hydrogen Substances 0.000 claims description 16
- 229910052739 hydrogen Inorganic materials 0.000 claims description 16
- 229910000041 hydrogen chloride Inorganic materials 0.000 claims description 16
- IXCSERBJSXMMFS-UHFFFAOYSA-N hydrogen chloride Substances Cl.Cl IXCSERBJSXMMFS-UHFFFAOYSA-N 0.000 claims description 16
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 claims description 13
- 239000000460 chlorine Substances 0.000 claims description 13
- 229910052801 chlorine Inorganic materials 0.000 claims description 13
- 238000000034 method Methods 0.000 claims description 13
- 239000011368 organic material Substances 0.000 claims description 13
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims description 10
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 8
- 239000001301 oxygen Substances 0.000 claims description 8
- 229910052760 oxygen Inorganic materials 0.000 claims description 8
- 239000007789 gas Substances 0.000 claims description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 7
- 239000001569 carbon dioxide Substances 0.000 claims description 5
- 229910002092 carbon dioxide Inorganic materials 0.000 claims description 5
- 239000007921 spray Substances 0.000 claims description 5
- 125000004435 hydrogen atom Chemical group [H]* 0.000 claims description 4
- 230000015572 biosynthetic process Effects 0.000 claims description 2
- 125000004432 carbon atom Chemical group C* 0.000 claims description 2
- 125000001309 chloro group Chemical group Cl* 0.000 claims 2
- KZBUYRJDOAKODT-UHFFFAOYSA-N Chlorine Chemical compound ClCl KZBUYRJDOAKODT-UHFFFAOYSA-N 0.000 description 8
- 239000003546 flue gas Substances 0.000 description 5
- 239000000047 product Substances 0.000 description 5
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 4
- 239000002826 coolant Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 239000002699 waste material Substances 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 2
- ATUOYWHBWRKTHZ-UHFFFAOYSA-N Propane Chemical compound CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 description 2
- 239000011449 brick Substances 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- YACLQRRMGMJLJV-UHFFFAOYSA-N chloroprene Chemical compound ClC(=C)C=C YACLQRRMGMJLJV-UHFFFAOYSA-N 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 239000010815 organic waste Substances 0.000 description 2
- 238000010791 quenching Methods 0.000 description 2
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 238000010793 Steam injection (oil industry) Methods 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000004063 acid-resistant material Substances 0.000 description 1
- AQLMHYSWFMLWBS-UHFFFAOYSA-N arsenite(1-) Chemical compound O[As](O)[O-] AQLMHYSWFMLWBS-UHFFFAOYSA-N 0.000 description 1
- 125000004429 atom Chemical group 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 239000003518 caustics Substances 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000008246 gaseous mixture Substances 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- IJDNQMDRQITEOD-UHFFFAOYSA-N n-butane Chemical class CCCC IJDNQMDRQITEOD-UHFFFAOYSA-N 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- 239000000575 pesticide Substances 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 239000001294 propane Substances 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
- 239000011819 refractory material Substances 0.000 description 1
- 230000001502 supplementing effect Effects 0.000 description 1
- 238000004448 titration Methods 0.000 description 1
Landscapes
- Incineration Of Waste (AREA)
- Gasification And Melting Of Waste (AREA)
Description
【発明の詳細な説明】
本発明は塩素化された有機材料を焼却する改良
された方法、特に煙道ガス中の分子状塩素の存在
量水準を減じる方法に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improved method for incinerating chlorinated organic materials, particularly for reducing the abundance level of molecular chlorine in flue gases.
所望されない塩素化された有機化合物が多くの
工業プロセスにおいて有用な塩素化生成物と共に
形成される即ち、たとえば、高度に塩素化された
ブタン誘導体及びクロロプレン重合生成物がクロ
ロプレン製造における副成物として得られる。た
とえばDDTの如き塩素化された殺虫剤の製造に
おいては不活性な異性体が所望の生成物と共に得
られる。これらの塩素化された廃物は環境に対し
て危険を与えるのでそれらは通常は焼却される。 Undesired chlorinated organic compounds are formed along with useful chlorinated products in many industrial processes, i.e., highly chlorinated butane derivatives and chloroprene polymerization products are obtained as by-products in chloroprene production. It will be done. For example, in the production of chlorinated pesticides such as DDT, the inactive isomer is obtained along with the desired product. Since these chlorinated wastes pose a danger to the environment, they are usually incinerated.
通常の塩素化された有機廃物の焼却において
は、塩素は主として塩化水素に転化され、このも
のは水で洗浄される。しかしながら、有機塩素の
１部は分子状塩素、Cl2を生成し、このものは水
中にHClよりも溶解性が少なく、有効に洗浄され
ない。故にいくらかのガス状塩素が煙道ガス中に
存在する。煙道ガス中のこの汚染物の存在はもち
ろん望ましくない。 In conventional incineration of chlorinated organic waste, chlorine is primarily converted to hydrogen chloride, which is washed with water. However, some of the organic chlorine produces molecular chlorine, Cl2 , which is less soluble in water than HCl and is not effectively cleaned. Some gaseous chlorine is therefore present in the flue gas. The presence of this contaminant in the flue gas is of course undesirable.
塩化水素ガスへの塩素転化率の効率は、たとえ
ば焼却炉の燃焼ゾーンに過熱スチームを注入する
ことにより改良され得る。この先行技術の方法は
燃焼ゾーンへのスチーム注入が焼却炉の温度を低
下させ、その結果必要な温度水準を保持するのに
追加のエネルギーが必要であるという欠点を有す
る。更に、燃焼ゾーン中のスチームの存在は焼却
炉の有効容積従つてその処理量を減少させる。最
後に、それは燃焼ゾーンの耐火物ライニングを含
む焼却炉材料の腐食及び破壊を促進する。 The efficiency of chlorine conversion to hydrogen chloride gas can be improved, for example, by injecting superheated steam into the combustion zone of the incinerator. This prior art method has the disadvantage that steam injection into the combustion zone reduces the temperature of the incinerator, so that additional energy is required to maintain the required temperature level. Additionally, the presence of steam in the combustion zone reduces the effective volume of the incinerator and thus its throughput. Finally, it promotes corrosion and destruction of incinerator materials, including the refractory lining of the combustion zone.
塩素化された有機材料を焼却する更に有効な方
法が望まれることは容易に了解しうる。 It can be easily seen that a more effective method of incinerating chlorinated organic materials is desired.
本発明の方法に従えば、空気と約20〜70％（好
ましくは約20〜55％）の塩素を含有する塩素化さ
れた有機材料とを、その壁が約800〜1500℃の温
度に保持されている焼却炉の燃焼ゾーンに連続的
に導入し、ガス状燃焼生成物を水性塩化水素酸ス
プレーにより冷却されている冷却ゾーン
（quench zone）に導入し、そして水素ガスを温
度が約450〜1000℃の範囲内にある１つ又はそれ
より多くの地点で該冷却ゾーンに注入し、その際
該燃焼ゾーンに導入される空気の量は、すべて炭
素原子を二酸化炭素に転化し、すべての塩素原子
を十分な水素原子と結合させて塩化水素を生成せ
しめそして塩化水素の生成後に残留するすべての
水素原子を水に転化することにより該有機材料を
完全に燃焼させるのに必要な理論量よりも約１〜
40％多い過剰の酸素が存在するような量であり、
そして該冷却ゾーンに注入される水素の量は式Ｚ
＝（0.1〜１）・ｍ（ここにＺは該燃焼ゾーンに供
給される空気の容量を基準とする水素の容量百分
率であり、ｍは水の蒸気及び塩化水素ガスを除い
て冷却ゾーンに存在するすべてのガスを基準とす
る冷却ゾーン中の酸素の容量百分率である）、に
より表されるものとする。 According to the method of the present invention, air and a chlorinated organic material containing about 20-70% (preferably about 20-55%) chlorine are maintained at a temperature of about 800-1500° C. the gaseous combustion products are introduced into a quench zone where the gaseous combustion products are cooled by an aqueous hydrochloric acid spray, and hydrogen gas is introduced continuously into the combustion zone of an incinerator at a temperature of about 450°C to injected into the cooling zone at one or more points within 1000°C, the amount of air introduced into the combustion zone converting all carbon atoms to carbon dioxide and all chlorine more than the theoretical amount required to completely burn out the organic material by combining atoms with enough hydrogen atoms to form hydrogen chloride and converting all hydrogen atoms remaining after the formation of hydrogen chloride to water. Approximately 1~
The amount is such that there is 40% more excess oxygen,
The amount of hydrogen injected into the cooling zone is then determined by the formula Z
= (0.1 to 1) m (where Z is the volume percentage of hydrogen based on the volume of air supplied to the combustion zone, and m is the volume percentage of hydrogen present in the cooling zone, excluding water vapor and hydrogen chloride gas) is the volume percentage of oxygen in the cooling zone, based on all gases in the cooling zone.
添付図面は廃物焼却炉を略図で示し、そしてそ
れを通る材料の移動を示す。 The accompanying drawing schematically shows a waste incinerator and shows the movement of material through it.
分子状塩素は還元雰囲気中で水素によつて塩化
水素に転化され得ることは一般に知られている。
しかしながらこれは空気又は酸素の存在下に達成
され得ることは一般に知られていない。更に、通
常少過剰の空気の存在下に行なわれる本発明の方
法は分子状塩素を水で洗浄され得る塩化水素に非
常に効率良く転化する。酸素の過剰率が１％に達
しない場合は塩素化された有機材料中の炭素の二
酸化炭素への転化が完全には進行しない。一方、
酸素の過剰率が40％を越えると熱効率が低下す
る。 It is generally known that molecular chlorine can be converted to hydrogen chloride by hydrogen in a reducing atmosphere.
However, it is generally not known that this can be achieved in the presence of air or oxygen. Furthermore, the process of the present invention, which is usually carried out in the presence of a small excess of air, is very efficient in converting molecular chlorine to hydrogen chloride which can be washed with water. If the oxygen excess does not reach 1%, the conversion of carbon in the chlorinated organic material to carbon dioxide will not proceed completely. on the other hand,
When the excess rate of oxygen exceeds 40%, thermal efficiency decreases.
すなわち、約１〜40％多い過剰の酸素を用いる
と塩素化された有機材料中の炭素の二酸化炭素へ
の転化が実質的に完全に起こり、しかも熱効率は
低下しない。 That is, using an excess of about 1 to 40% more oxygen will result in substantially complete conversion of carbon in the chlorinated organic material to carbon dioxide without reducing thermal efficiency.
好ましい条件は式Ｚ＝（0.3〜0.5）・ｍ（ここに
Ｚ及びｍは前記した通りである）によつて表わさ
れる。 Preferred conditions are expressed by the formula Z=(0.3-0.5).m, where Z and m are as described above.
最も有効な塩素の除去はこれらの好ましい条件
下に行なわれ、更にＺ＝（0.1〜１）・ｍの広い範
囲において十分な塩素除去が行なわれるが、或る
程度の塩素除去は水素の流量が最も低い限界より
も少なく減少する時にも行なわれ得る。しかしこ
の最後の変法は大抵の環境基準を満足することは
期待されないであろう。最も高い限界より大きく
水素の流量を増加させるのは水素を浪費するであ
ろう。しかしながら、塩素はこれらの高い速度で
は非常に有効に除去される。 The most effective chlorine removal occurs under these favorable conditions, and sufficient chlorine removal occurs over a wide range of Z = (0.1 to 1) m, but a certain degree of chlorine removal is achieved when the hydrogen flow rate is It can also be done when decreasing below the lowest limit. However, this last variant would not be expected to meet most environmental standards. Increasing the hydrogen flow rate beyond the highest limit will waste hydrogen. However, chlorine is removed very effectively at these high rates.
添付図面を参照すると、好適な焼却炉は燃焼ゾ
ーンＡ、冷却ゾーンＢ及び排気ダクト又は煙道Ｃ
から成る。塩素化有機材料はライン１を通して燃
焼ゾーンＡに導入され、そして空気はライン２を
通して導入される。燃焼ゾーンはたとえば耐火レ
ンガの如き耐火性材料でライニングされている。
ゾーンＡの中心の炎の温度は約2000〜2500℃であ
ると見積もられるが測定される壁温度は約800〜
1500℃である。必要な温度は塩素化された材料自
体を燃焼させることにより得られるが、これはた
とえば天然ガス又は液体プロパンの如き炭化水素
をその中で燃焼させることによつて補充すること
ができる。ゾーンＡと連通するゾーンＢは、たと
えば耐火レンガ、セラミツクライニング銅又はそ
の他の適当な耐酸性材料から構成することができ
る。典型的な焼却炉は添付図面に示された通り、
鉛直配置を有し、ゾーンＡはゾーンＢの上に位置
している。いくつかの略平行な列の開口がゾーン
Ｂの周辺に位置している。これらは主として冷却
用（quenching）塩化水素酸溶液の注入に使用さ
れるがこれらの開口の一部は本発明の方法に従う
水素の導入に使用される。ゾーンＢには下向き方
向に減少する温度勾配があり、そして水素は温度
が約1000℃である最も高い列Ｄに位置した開口を
通して導入される。他の列はＥ及びＦにより示さ
れている。列間の間隔は有効な冷却が得られるよ
うな間隔であり、たとえば列ＤはゾーンＢの頂部
より50cm下方であることができ、列Ｅは列Ｄより
90cm下方であることができ、そして列Ｆは列Ｅよ
り90cm下方にあり且つゾーンＢの底部から386cm
であることができる。この略図に示された冷却ゾ
ーンは円筒形であり133cmの内径を持つ。 With reference to the accompanying drawings, a preferred incinerator has a combustion zone A, a cooling zone B and an exhaust duct or flue C.
Consists of. Chlorinated organic material is introduced into combustion zone A through line 1 and air is introduced through line 2. The combustion zone is lined with a refractory material, such as refractory brick.
The temperature of the flame in the center of zone A is estimated to be about 2000-2500℃, but the measured wall temperature is about 800-2500℃.
The temperature is 1500℃. The required temperature is obtained by burning the chlorinated material itself, which can be supplemented by burning a hydrocarbon therein, for example natural gas or liquid propane. Zone B, which communicates with zone A, may be constructed of, for example, refractory brick, ceramic lined copper or other suitable acid-resistant material. A typical incinerator, as shown in the accompanying drawing,
It has a vertical arrangement, with zone A located above zone B. Several generally parallel rows of openings are located around the periphery of zone B. These are primarily used for the injection of quenching hydrochloric acid solution, but some of these openings are used for the introduction of hydrogen according to the method of the invention. There is a downwardly decreasing temperature gradient in zone B, and hydrogen is introduced through the openings located in the highest row D, where the temperature is about 1000°C. Other columns are designated E and F. The spacing between rows is such that effective cooling is obtained, for example row D can be 50 cm below the top of zone B, row E is lower than row D.
and row F is 90 cm below row E and 386 cm from the bottom of zone B.
can be. The cooling zone shown in this diagram is cylindrical and has an internal diameter of 133 cm.
液体冷却剤は開口Ｅ及びＦ並びに開口Ｄの一部
に挿入されているノズルを通してゾーンＢにスプ
レーされる。ダクトＣを通つて出るガス状混合物
（以後、煙道ガス）は約100〜200℃の温度を持
つ。ダクトＣはゾーンＢの底部より上に位置して
おり、たとえば添付図面に示されたダクトＣの中
心からゾーンＢの底部までの距離は155cmであ
る。 Liquid coolant is sprayed into zone B through nozzles inserted into openings E and F and part of opening D. The gaseous mixture exiting through duct C (hereinafter flue gas) has a temperature of approximately 100-200°C. Duct C is located above the bottom of zone B; for example, the distance from the center of duct C to the bottom of zone B shown in the accompanying drawings is 155 cm.
通常の操作条件下に、上記寸法の冷却ゾーンを
有する焼却炉中の煙道ガスの流速は約0.79〜1.98
m3／秒であり、冷却ゾーン中のガスの滞留時間は
約0.34〜1.05秒である。 Under normal operating conditions, the flow rate of flue gas in an incinerator with a cooling zone of the above dimensions is approximately 0.79-1.98
m 3 /sec and the residence time of the gas in the cooling zone is about 0.34-1.05 seconds.
最初は希薄な水性塩化水素酸である冷却剤は冷
却ゾーンＢに存在するいくらかの追加の塩化水素
を溶解し続けそしてゾーンＢの底部に蓄積する。
次いでそれを図示されていないポンプ及び配管系
によつて開口Ｄ，Ｅ及びＦの種々のスプレーノズ
ルに再循環させる。 The coolant, initially dilute aqueous hydrochloric acid, continues to dissolve some additional hydrogen chloride present in cooling zone B and accumulates at the bottom of zone B.
It is then recirculated to the various spray nozzles in openings D, E and F by means of a pump and piping system not shown.
有利には、この蓄積された冷却剤は先ず図示さ
れていない保持タンクにポンプで送られ、そこか
らノズルに送られる。冷却剤は繰り返し再循環さ
れるにつれて、この溶液中のHClの濃度は、それ
以上のHCl吸収が十分に有効に行なわれなくなる
ような点まで徐々に増加する。その点においてこ
の溶液は廃棄処理の方へ送られるか又は他の使用
のために回収される。 Advantageously, this accumulated coolant is first pumped to a holding tank, not shown, and from there to the nozzle. As the coolant is repeatedly recycled, the concentration of HCl in this solution gradually increases to the point where further HCl absorption is no longer efficient enough. At that point, the solution is sent to waste disposal or recovered for other uses.
本発明はその好ましい代表的な態様の下記実施
例により更に説明される。 The invention is further illustrated by the following examples of preferred representative embodiments thereof.
実施例
塩素約35重量％を含有する塩素化された有機廃
棄物を実質的に添付図面において略図で示された
装置において2.6％過剰の空気の存在下に焼却し
た。バーナー壁温度は1370℃であつた。水素注入
を行なわない対照実験は残留分子状塩素（ガス流
からHClを先ず補促し、次いで分子状塩素を苛性
アルカリ／亜ヒ酸塩スクラバー中で塩化物イオン
に転化しそして標準ボルハード（Volhard）滴定
により塩化物イオンを定量することによつて決定
された）の基準値（base value）を与えた。冷却
ゾーンの頂部から60cmの点における0.85容量％水
素（燃焼ゾーンに供給された空気を基準とする）
の冷却ゾーンへの注入は分子状塩素含有率を600
mg／m3から48mg／m3へと減少させた。EXAMPLE A chlorinated organic waste containing approximately 35% by weight of chlorine was incinerated in the presence of a 2.6% excess of air in an apparatus substantially as schematically shown in the accompanying drawings. The burner wall temperature was 1370°C. Control experiments without hydrogen injection involved first supplementing residual molecular chlorine (HCl from the gas stream, then converting the molecular chlorine to chloride ions in a caustic/arsenite scrubber, and standard Volhard titration). gave a base value of (determined by quantifying chloride ions). 0.85% hydrogen by volume at 60 cm from the top of the cooling zone (relative to the air supplied to the combustion zone)
Injection into the cooling zone reduces the molecular chlorine content to 600
mg/m 3 to 48 mg/m 3 .
添付図面は本発明の方法を実施するのに使用す
る焼却炉の好ましい１つの具体例の略図であり且
つそれを通る材料の流れを示す略図である。
図において、１……塩素化された有機材料供給
ライン、２……空気供給ライン、Ａ……燃焼ゾー
ン、Ｂ……冷却ゾーン、Ｃ……排気ダクト又は煙
道、Ｄ，Ｅ及びＦ……開口である。
The accompanying drawing is a schematic illustration of one preferred embodiment of an incinerator used to carry out the method of the invention and shows the flow of materials therethrough. In the figure, 1... Chlorinated organic material supply line, 2... Air supply line, A... Combustion zone, B... Cooling zone, C... Exhaust duct or flue, D, E and F... It is an opening.
Claims (1)
機材料の焼却方法において、空気と該塩素化され
た有機材料とをその壁が約800〜1500℃の温度に
保持されている焼却炉の燃焼ゾーンに連続的に導
入し、ガス状燃焼生成物を水性塩化水素酸スプレ
ーにより冷却されている冷却ゾーンに導入し、そ
して水素を温度が約450〜1000℃の範囲内にある
１つ又はそれより多くの地点で該冷却ゾーンに注
入することより成り、該燃焼ゾーンに導入される
空気の量は、すべての炭素原子を二酸化炭素に転
化し、すべての塩素原子を十分な水素原子と結合
させて塩化水素を生成せしめそして塩化水素の生
成後に残留するすべての水素原子を水に転化する
ことにより該有機材料を完全に燃焼させるのに必
要な理論量よりも約１〜40％多い過剰の酸素が存
在するような量であり、そして該冷却ゾーンに注
入される水素の量は式Ｚ＝（0.1〜１）・ｍ（ここ
にＺは該燃焼ゾーンに供給される空気の容量を基
準とする水素の容量百分率であり、ｍは水の蒸気
及び塩化水素ガスを除いて冷却ゾーンに存在する
すべてのガスを基準とする冷却ゾーン中の酸素の
容量百分率である）、により表わされることを特
徴とする上記塩素化された有機材料の焼却方法。 ２ Ｚ＝（0.3〜0.5）・ｍである特許請求の範囲第
１項記載の方法。 ３ 燃焼ゾーンと冷却ゾーンとは、燃焼ゾーンが
冷却ゾーンの上にあるようにして実質的に鉛直方
向に配置されている特許請求の範囲第１項記載の
方法。 ４ 冷却ゾーンにスプレーされた水性塩化水素酸
を冷却ゾーンの底部において集め、そしてそれが
塩化水素を有効に吸収することができる間はスプ
レー点に戻して再循環させる特許請求の範囲第１
項記載の方法。 ５ 有機材料の塩素含有率が20〜55％である特許
請求の範囲第１項記載の方法。[Claims] 1. A method for incinerating chlorinated organic material containing about 20 to 70% chlorine, in which air and the chlorinated organic material are heated to a temperature of about 800 to 1500°C. the gaseous combustion products are introduced into the cooling zone which is cooled by an aqueous hydrochloric acid spray, and the hydrogen is continuously introduced into the combustion zone of the incinerator, where the gaseous combustion products are cooled by an aqueous hydrochloric acid spray, and the hydrogen is the amount of air introduced into the combustion zone is such that all carbon atoms are converted to carbon dioxide and all chlorine atoms are converted to carbon dioxide and all chlorine atoms are about 1 more than the theoretical amount required to completely burn out the organic material by combining with enough hydrogen atoms to form hydrogen chloride and converting all hydrogen atoms remaining after the formation of hydrogen chloride to water. The amount of hydrogen injected into the cooling zone is such that there is ~40% more excess oxygen, and the amount of hydrogen injected into the cooling zone is calculated using the formula Z = (0.1-1) m, where Z is supplied to the combustion zone. is the volume percentage of hydrogen relative to the volume of air, and m is the volume percentage of oxygen in the cooling zone relative to all gases present in the cooling zone except water vapor and hydrogen chloride gas); The above method for incinerating chlorinated organic materials, characterized in that: 2. The method according to claim 1, wherein Z=(0.3-0.5)·m. 3. The method of claim 1, wherein the combustion zone and the cooling zone are arranged substantially vertically, with the combustion zone above the cooling zone. 4. Aqueous hydrochloric acid sprayed into the cooling zone is collected at the bottom of the cooling zone and recycled back to the spray point while it can effectively absorb hydrogen chloride.
The method described in section. 5. The method according to claim 1, wherein the organic material has a chlorine content of 20 to 55%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP141379A JPS5595017A (en) | 1979-01-12 | 1979-01-12 | Improved method of incinerating chlorinated organic material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP141379A JPS5595017A (en) | 1979-01-12 | 1979-01-12 | Improved method of incinerating chlorinated organic material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5595017A JPS5595017A (en) | 1980-07-18 |
| JPS6238606B2 true JPS6238606B2 (en) | 1987-08-19 |
Family
ID=11500790
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP141379A Granted JPS5595017A (en) | 1979-01-12 | 1979-01-12 | Improved method of incinerating chlorinated organic material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5595017A (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4018879A (en) * | 1973-05-04 | 1977-04-19 | Shell Oil Company | Combustion of halogenated hydrocarbon |
-
1979
- 1979-01-12 JP JP141379A patent/JPS5595017A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4018879A (en) * | 1973-05-04 | 1977-04-19 | Shell Oil Company | Combustion of halogenated hydrocarbon |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5595017A (en) | 1980-07-18 |
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