JPS63225504A - Sulfur scrubber type cooling and dedusting method - Google Patents
Sulfur scrubber type cooling and dedusting methodInfo
- Publication number
- JPS63225504A JPS63225504A JP62056770A JP5677087A JPS63225504A JP S63225504 A JPS63225504 A JP S63225504A JP 62056770 A JP62056770 A JP 62056770A JP 5677087 A JP5677087 A JP 5677087A JP S63225504 A JPS63225504 A JP S63225504A
- Authority
- JP
- Japan
- Prior art keywords
- sulfur
- gas
- dust
- cooling
- dust removal
- 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.)
- Granted
Links
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 title claims abstract description 77
- 239000011593 sulfur Substances 0.000 title claims abstract description 65
- 229910052717 sulfur Inorganic materials 0.000 title claims abstract description 65
- 238000001816 cooling Methods 0.000 title claims abstract description 31
- 238000000034 method Methods 0.000 title claims description 34
- 239000000428 dust Substances 0.000 claims abstract description 65
- 239000007788 liquid Substances 0.000 claims description 21
- 150000003464 sulfur compounds Chemical class 0.000 claims description 19
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 claims description 16
- 238000005201 scrubbing Methods 0.000 claims description 5
- 239000003575 carbonaceous material Substances 0.000 claims description 3
- 239000007921 spray Substances 0.000 abstract description 14
- 239000007789 gas Substances 0.000 description 59
- 238000010586 diagram Methods 0.000 description 6
- 239000003054 catalyst Substances 0.000 description 3
- 238000007796 conventional method Methods 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- JJWKPURADFRFRB-UHFFFAOYSA-N carbonyl sulfide Chemical compound O=C=S JJWKPURADFRFRB-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000003595 mist Substances 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 239000000571 coke Substances 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 229910000037 hydrogen sulfide Inorganic materials 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Landscapes
- Treating Waste Gases (AREA)
- Separation Of Particles Using Liquids (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野］
本発明は、高濃度二酸化硫黄（Ｓｏｗ ）含有ガスより
単体硫黄を回収する方法において、硫黄化合物含有ガス
の冷却が可能で′ｈプ、かつガス中の炭素質ダスト及び
その他のダストを効率的に除去し、ダストに起因したト
ラブルを防止できる単純にして経済効果の大なる硫黄ス
クラバー式冷却・脱塵方法に関する。[Detailed Description of the Invention] [Industrial Application Field] The present invention provides a method for recovering elemental sulfur from a gas containing high concentration sulfur dioxide (SOW), which is capable of cooling the gas containing sulfur compounds, and This invention relates to a simple and economically effective sulfur scrubber cooling/dedusting method that can efficiently remove carbonaceous dust and other dust from gas and prevent troubles caused by dust.
高濃度二酸化硫黄含有ガスより単体硫黄を回収する装置
において、特ｒｃ％炭素質材を利用した二酸化硫黄還元
反応器とクラウス触媒を利用したクラウス反応とを採用
した場合、二酸化硫黄還元反応器より後段に設置したク
ラウス反応炉に導入する硫黄化合物含有ガス中には、炭
素質粉末より構成されたダストが、一般的に２〜４１／
ｍ”Ｍ、 さらに悪化した場合には、約６ｔ／ ｍ”Ｎ
含有される場合がある。これらの硫黄化合物含有ガス中
のダストの除去装置として、サイクロン及びマルチサイ
クロン等の遠心力による方法が利用されている。しかし
、これらの方法によっても、かなりの量の未補集ダスト
がクラウス反応炉へ流れ込み、触媒層の目詰り等のダス
トトラブルを引き起す。そこで、さらにダストを減らす
ために、本発明者等はすでに特願昭５８−２２３２５６
号明細書に訃いて、硫黄をガス中に直接スクラビングさ
せるスクラバー式脱塵方法を提案している。In a device that recovers elemental sulfur from a gas containing high concentration sulfur dioxide, when a sulfur dioxide reduction reactor using a special rc% carbonaceous material and a Claus reaction using a Claus catalyst are adopted, a stage downstream from the sulfur dioxide reduction reactor is used. In the sulfur compound-containing gas introduced into the Claus reactor installed in the
m”M, in case of further deterioration, approximately 6t/m”N
May contain. As a device for removing dust from these sulfur compound-containing gases, a method using centrifugal force such as a cyclone or a multi-cyclone is used. However, even with these methods, a considerable amount of uncollected dust flows into the Claus reactor, causing dust troubles such as clogging of the catalyst layer. Therefore, in order to further reduce dust, the present inventors have already filed the patent application No. 58-223256.
The patent proposes a scrubber-type dust removal method in which sulfur is directly scrubbed into the gas.
第２図に、従来の硫黄回収方法の工程図を示す。同図中
直線はガスの流れを、破線は硫黄の流れをあられしてお
り、１は炭素質材を充填した二酸化硫黄還元反応器であ
って、高濃度二酸化硫黄を含有する原料ガスは、炭素質
還元剤と反応して硫黄、硫化水素、硫化カルボニル等に
還元され、組成調整された後、サイクロン等の集塵装置
２によって、ガス中のダストの大部分を除去され、次に
硫黄スクラバー式脱塵装置３によって脱塵されて、クラ
ウス装置４へ送られ、ここで硫黄を回収される。硫黄ス
クラバー式脱塵装置５は、噴霧される液状硫黄の液滴と
、硫黄化合物含有ガスとを並流または向流接触させて、
該ガス中のダストの除去を行なうものである。FIG. 2 shows a process diagram of a conventional sulfur recovery method. In the figure, the straight lines indicate the flow of gas, and the broken lines indicate the flow of sulfur. 1 is a sulfur dioxide reduction reactor filled with carbonaceous material, and the raw material gas containing high concentration of sulfur dioxide is After the gas is reduced to sulfur, hydrogen sulfide, carbonyl sulfide, etc. by reaction with a reducing agent and the composition is adjusted, most of the dust in the gas is removed by a dust collector 2 such as a cyclone, and then a sulfur scrubber type The dust is removed by the dust removal device 3 and sent to the Claus device 4, where the sulfur is recovered. The sulfur scrubber type dust removal device 5 brings sprayed droplets of liquid sulfur into contact with a sulfur compound-containing gas in cocurrent or countercurrent,
This is to remove dust from the gas.
第３図は、前記の特願昭５８−２２５２５６号明細書に
提案される硫黄スクラバー式脱塵方法の工程図である。FIG. 3 is a process diagram of the sulfur scrubber type dust removal method proposed in the above-mentioned Japanese Patent Application No. 58-225256.
硫黄化合物含有ガスは、硫黄ドラム５から脱塵塔３へ導
入されて、精製ガスとして脱塵塔３から排出される。硫
黄は、ポンプ６によってスプレーノズル７へ送られ、該
ノズル７から噴霧することによって形成された液膜中を
硫黄化合物含有ガスが通過することにより、ガス中に含
有されているダス）を除去する。なおスプレーノズル７
はこの例では２本用いられている（スプレ一段数２段）
この脱塵塔３の運転条件は、液ガス比２〜８Ｌ／ｍ”・
スプレ一段数２〜４段、液滴径α６〜ｔｏ ｗａ テロ
ル。The sulfur compound-containing gas is introduced from the sulfur drum 5 into the dust removal tower 3 and discharged from the dust removal tower 3 as purified gas. The sulfur is sent to the spray nozzle 7 by the pump 6, and the sulfur compound-containing gas passes through the liquid film formed by spraying from the nozzle 7, thereby removing dust contained in the gas. . Furthermore, spray nozzle 7
In this example, two bottles are used (one spray stage is 2 stages).
The operating conditions of this dust removing tower 3 are as follows: liquid gas ratio 2 to 8 L/m”
The number of spray stages is 2 to 4, and the droplet diameter is α6 to 3.
さらに、液状硫黄のダストの濃縮を防ぐために。Additionally, to prevent the concentration of liquid sulfur dust.
汚れた硫黄（リサイクル硫黄）を連続的に抜き出すと同
時に、回収硫黄を定期的ろるいは連続的に補給する。こ
の方法は脱塵には非常に有効である。Dirty sulfur (recycled sulfur) is continuously extracted, and at the same time, recovered sulfur is periodically or continuously replenished. This method is very effective for removing dust.
ところが、上記第５図の脱塵方法によって硫黄化合物含
有ガス中のダスト除去を行なう場合、入口ガス（導入部
）のガスの温度は通常２００〜４００℃であるため、前
記のように脱塵ｖｃは非常に有効であるが、脱塵後のガ
スの温度が、１６１℃を越える場合が多く、以下のよう
な問題があつ九。すなわち、液状硫黄の粘度は１６０℃
以下では３０ａア以下で低粘性であるが、１６０Ｃ付近
から急激に高粘性化し、１７０℃では１６．０口Ｏｏｐ
にも達する。このために脱塵後のガスに同伴する硫黄
ミストが高粘性とな９、適切なミスト補集器の選定が難
かしかった。However, when dust is removed from a sulfur compound-containing gas by the dust removal method shown in FIG. Although this method is very effective, the temperature of the gas after dust removal often exceeds 161°C, leading to the following problems. In other words, the viscosity of liquid sulfur is 160°C
Below, the viscosity is low below 30a, but the viscosity increases rapidly from around 160C, and at 170℃, the viscosity is 16.0 mouths Oop.
reach even. For this reason, the sulfur mist that accompanies the gas after dust removal has a high viscosity9, making it difficult to select an appropriate mist collector.
また、脱塵後のガス中の硫黄の蒸気圧が温度に対し飽和
となるため分圧が高くなり、スクラビングした硫黄の蒸
発が起シ、このため後続のクラウス装置への負荷が増加
するとともに、補給硫黄が多く必要であった。In addition, since the vapor pressure of sulfur in the gas after dust removal becomes saturated with respect to temperature, the partial pressure increases, causing evaporation of the scrubbed sulfur, which increases the load on the subsequent Claus equipment. A large amount of make-up sulfur was required.
本発明の目的は、これらの派生的欠点を一掃し、単純で
経済的な硫黄スクラバー式冷却・脱塵方法を提供するこ
とにある。The object of the present invention is to eliminate these consequential drawbacks and to provide a simple and economical sulfur scrubber cooling and dedusting method.
本発明は、上記の目的を達成する手段として、従来の脱
塵塔の脱塵ゾーンよりガス上流側において硫黄化合物含
有ガスの冷却ゾーンを設けて、ここで冷却を行った後に
脱塵を行なう方法である。As a means to achieve the above object, the present invention provides a method in which a cooling zone for sulfur compound-containing gas is provided on the gas upstream side of the dust removal zone of a conventional dust removal tower, and dust removal is performed after cooling there. It is.
すなわち、本発明は高濃度二酸化硫黄含有ガスより単体
硫黄を回収する方法に訃いて、回収した硫黄を硫黄化合
物含有ガス中へ直接スクラビングさせることにより、該
ガスを温度１４０〜１６０ｃに冷却して該ガス中の炭素
質を主とするダストの除去を行なうことを特徴とする特
黄スクラバー式冷却・脱塵方法である口なお、本明細書
においてスクラビングとは・液状の硫黄をスプレーノズ
ル等を利用して硫黄化合物含有ガス中に噴霧させること
をいう・本発明においては、冷却ゾーンで液ガス比８〜
５５１７ｍ”にて液状硫黄ｆｔ＃硫黄化合物含有ガス中
に直接スクラビングさせて、該硫黄化合物含有ガスｔ−
１４０〜１６０ｃに冷却し、脱塵ゾーンで液ガス比２〜
８１７ｍ”にて液状硫黄を該ガス中にスプレーすること
によって硫黄化合物含有ガス中のダスト除去を行なうこ
とは特に好ましい実施態様である。That is, the present invention focuses on a method for recovering elemental sulfur from a gas containing high concentration of sulfur dioxide, and by directly scrubbing the recovered sulfur into a gas containing sulfur compounds, the gas is cooled to a temperature of 140 to 160 °C to recover the sulfur compounds. This is a special yellow scrubber type cooling and dedusting method that is characterized by removing dust, mainly carbonaceous, from gas. Note that in this specification, scrubbing refers to the use of liquid sulfur with a spray nozzle, etc.・In the present invention, the liquid-gas ratio is 8 to 8 in the cooling zone.
5517 m'' into the liquid sulfur ft# sulfur compound-containing gas to remove the sulfur compound-containing gas t-
Cool to 140~160c and reduce liquid/gas ratio to 2~2 in the dust removal zone.
It is a particularly preferred embodiment to carry out dust removal in the sulfur compound-containing gas by spraying liquid sulfur into the gas at 817 m''.
またスクラビング硫黄の一部入れ替えによって、液状硫
黄中のダスト濃度を一定範囲に保つこと、さらに硫黄化
合物含有ガス中の硫黄蒸気を冷却によって凝縮させるこ
とｒｃ上Ｂ、硫黄の補給量を滅じてまたは無くして、硫
黄の一部の連続的な入れ替えを行なうことによって硫黄
中のダスト濃度を一定範囲に保つことも本発明の好まし
い実施態様として挙げられる。In addition, by partially replacing the scrubbing sulfur, it is possible to maintain the dust concentration in the liquid sulfur within a certain range, and to condense the sulfur vapor in the sulfur compound-containing gas by cooling. A preferred embodiment of the present invention is to keep the dust concentration in sulfur within a certain range by continuously replacing a portion of the sulfur.
以下に本発明を添付図面に基づいて具体的に説明する。The present invention will be specifically explained below based on the accompanying drawings.
第１図は本発明に係る方法を説明するための工程図であ
る。同図において８は冷却・脱塵塔であり、導入された
硫黄化合物含有ガスは、冷却ゾーン９でスプレーノズル
１０からスプレーされる硫黄液滴と直接熱交換すること
で、１４０〜１６０ｃの温度にまで冷却されると共に一
部除塵される。この冷却ゾーン９の液ガス比（Ｌ／Ｇ
）は８〜３ Ｓ １７ｍ”であることが好ましい。FIG. 1 is a process diagram for explaining the method according to the present invention. In the figure, 8 is a cooling/dedusting tower, and the introduced sulfur compound-containing gas is heated to a temperature of 140 to 160 °C by directly exchanging heat with the sulfur droplets sprayed from the spray nozzle 10 in the cooling zone 9. At the same time, some dust is removed. The liquid-gas ratio (L/G
) is preferably 8 to 3 S 17 m''.
冷却ゾーン９で１４０〜１６ＱＣに冷却されたガスは、
塔上部すなわちガス下流側の脱塵ゾーン１１でスプレー
ノズル７（図では２本のノズルを用いた９１を示しであ
る）からスプレーされて形成される液膜（液滴群）によ
って脱塵された後、精製ガスとしてクラウス装置へ送ら
れる。The gas cooled to 140-16QC in cooling zone 9 is
Dust is removed by a liquid film (droplet group) that is sprayed from the spray nozzle 7 (the figure shows 91 using two nozzles) in the dust removal zone 11 at the top of the tower, that is, on the downstream side of the gas. Afterwards, it is sent to the Claus device as purified gas.
脱塵ゾーン１１での液ガス比（Ｌ／Ｇ ）は、従来法と
同様の２〜８ｔ／ＩＨ”であることが好ましい。スプレ
ーノズル７．１０からスプレーされた硫黄液滴は、ガス
との熱交換によって液温度が上昇するため、熱交換器１
２で１３８〜１５６℃に冷却した後、ポンプ６で冷却・
脱塵塔８へ送ルとともに、一部をリサイクル硫黄として
抜き出して処理する。The liquid/gas ratio (L/G) in the dedusting zone 11 is preferably 2 to 8 t/IH, which is the same as in the conventional method.The sulfur droplets sprayed from the spray nozzle 7.10 are Since the liquid temperature increases due to heat exchange, heat exchanger 1
After cooling to 138-156°C with step 2, cooling and cooling with pump 6
The sulfur is sent to the dust removal tower 8, and a portion is extracted as recycled sulfur for treatment.
第１図には、液とガスが向流で流れる例を示したが、本
発明は並流で行っても同じ性能を発揮する。また、液状
硫黄を冷却するための熱交換器を別に設置しているが、
これを塔本体に組み込んでもよい。またスプレ一段数２
段の例を示したが、これに限定されるところはない。Although FIG. 1 shows an example in which liquid and gas flow in countercurrent flow, the present invention exhibits the same performance even when flow is performed in parallel. In addition, a separate heat exchanger is installed to cool the liquid sulfur.
This may be incorporated into the tower body. Also, the number of spray stages is 2.
Although an example of stages is shown, the present invention is not limited to this.
本発明の硫黄スクラバー式冷却・脱塵方法において、液
状硫黄中のダスト濃度を一定の範囲内に抑える方法とし
て、次のような手段ｔ−ｍることかできる８本発明によ
りガスの出口温度を１４０〜１６０℃まで冷却すること
でガス中の硫黄蒸気がｌ！！縮するので、このガス中の
硫黄蒸気の大部分を除去できる。したがってこの凝縮硫
黄を従来の方法における補給硫黄に相当するものとして
用い、その凝縮相当分の汚れた硫黄を連続的に抜き出す
ことによって、゛硫黄の液面及びメスＮ１１度を一定の
範囲内に抑えること４できる。通常硫黄スクラバーの入
口ガス中の硫黄蒸気の濃度は、２〜４憾であるためこの
凝縮分だけの抜き出し操作で、循環硫黄中のダスト濃度
ｔ′１〜５鳴の範囲内に抑えることができる。In the sulfur scrubber type cooling/dedusting method of the present invention, as a method of suppressing the dust concentration in liquid sulfur within a certain range, the following means t-m can be used. By cooling the gas to 140-160°C, sulfur vapor in the gas is reduced to 1! ! Since the gas is compressed, most of the sulfur vapor in this gas can be removed. Therefore, this condensed sulfur is used as the equivalent of make-up sulfur in the conventional method, and by continuously extracting the condensed amount of dirty sulfur, the sulfur liquid level and the female N11 degree can be kept within a certain range. I can do 4 things. Normally, the concentration of sulfur vapor in the inlet gas of a sulfur scrubber is 2 to 4 degrees, so by extracting only this condensed amount, the dust concentration in the circulating sulfur can be kept within the range of 1 to 5 degrees. .
冷却及び脱塵の総合効率と設備の経済性の見地からは、
冷却ゾーンのスプレ一段数ｔ−１〜２段とし、脱塵ゾー
ンの段数を１〜４段とすることが好ましい。From the standpoint of overall cooling and dust removal efficiency and equipment economics,
It is preferable that the number of spray stages in the cooling zone is t-1 to 2, and the number of spray stages in the dust removal zone is 1 to 4.
〔実施例］
実施例
第１図に示す構成にて本発明に従って運転した結果は、
次の通りであった。[Example] The results of operation according to the present invention with the configuration shown in Example Fig. 1 are as follows.
It was as follows.
処理ガスｉｉ ： １２０〜１５０ ｍ”Ｎ／Ｈｒガス
温度：５００〜４００℃
ガス組成（％表示は容量暢である） ： １１，８４５
〜６ ％％ｓｏｎ ｔ、 ５〜＆ ５９６．００８ ｔ
、 Ｑ 〜１、５ ’１６．８ｚ １ Ｇ 〜１５２
７ｍ”Ｍ ％１ｉｌｏ ２０〜５０憾、ｃｏ、 ２０〜
５０悌、１１重 ５０〜４０優、００ ２〜４４％ＩＩ
Ｉ、 １〜５％ダス）ｆｆｌ成：平均径的３５μｍの
粉コークスダスト濃度：１ｏｏｏ〜１５００ｑ／Ｗ１３
Ｎであるガスを、スプレ一段数冷却ゾーン１段・脱塵ゾ
ーン２段で液ガス比が冷却ゾーンで２０〜２５ Ｌ／ｙ
ｙＢ” 、脱塵ゾーンで５〜７１／ｍ”ｌｃて、本発明
の硫黄スクラバー式冷却・脱塵方法にて処理を行なった
。Processing gas II: 120-150 m"N/Hr Gas temperature: 500-400°C Gas composition (% display is based on capacity): 11,845
~6%%son t, 5~ & 596.008t
, Q ~1, 5'16.8z 1 G ~152
7m”M %1ilo 20~50, co, 20~
50 悌, 11 weights 50-40 excellent, 00 2-44% II
I, 1-5% dust) ffl composition: average diameter 35 μm coke dust concentration: 1ooo-1500q/W13
N gas is sprayed in one stage, one cooling zone, and two dust removal zones, with a liquid-gas ratio of 20 to 25 L/y in the cooling zone.
yB", 5 to 71/m"lc in the dust removal zone, and the treatment was carried out using the sulfur scrubber type cooling and dust removal method of the present invention.
脱塵率は、９８１以上で６６、クラウス触媒層の圧力損
失の増加はほとんどなく長期間の運転が可能でめった。The dust removal rate was 981 or higher (66), and there was almost no increase in pressure loss in the Claus catalyst layer, making it possible to operate for a long period of time.
また、硫黄の補給なしに循環硫黄のダスト濃度を１〜２
憾の範囲内で運転できた。さらに、出口ガス中の硫黄蒸
気量も５〜８ ｑ／ｍ”ｕ まで少なくでき、本工程
の直後に設置したプロワの硫黄によるトラブルもなくな
った。In addition, the dust concentration of circulating sulfur can be reduced to 1 to 2 without replenishing sulfur.
I was able to drive within the limits. Furthermore, the amount of sulfur vapor in the outlet gas was reduced to 5 to 8 q/m"u, and troubles caused by sulfur in the blower installed immediately after this process were eliminated.
比較例
実施例の処理ガス条件にて、第２図に示したような従来
の方法によって脱塵処理を行なった。Comparative Example Dust removal treatment was carried out using the conventional method shown in FIG. 2 under the processing gas conditions of the example.
スプレ一段数は３Ｒで、液ガス比は６〜ａｔ／ｍｓであ
る。The number of spray stages is 3R, and the liquid-gas ratio is 6 to at/ms.
脱塵塔の入口ガス温度３００〜３５０℃、硫黄蒸気１０
〜１５８９／ｍＪの時、出口ガスは温度１７０〜１８０
℃で、１５〜２０ ｑ／ｍＪであり、出口ガス中の硫黄
蒸気量が多いために、脱塵塔の直後に設置したブロワに
おいて硫黄によるトラブルが、特に運転開始時等に発生
しやすかった。Dedusting tower inlet gas temperature 300-350℃, sulfur vapor 10
~1589/mJ, the outlet gas has a temperature of 170~180
℃, 15 to 20 q/mJ, and since the amount of sulfur vapor in the outlet gas was large, troubles due to sulfur were likely to occur in the blower installed immediately after the dust removal tower, especially at the start of operation.
以上の説明で明らかなように本発明の硫黄スクラバー式
冷却・脱塵方法は次のような優れた効果を発揮する。As is clear from the above explanation, the sulfur scrubber type cooling and dust removal method of the present invention exhibits the following excellent effects.
■ 脱塵後のガス中の硫黄含有量が低濃度かつ。■ The sulfur content in the gas after dust removal is low.
はぼ一定となるので、後続のクラウス装置の運転の安定
・容易及び負荷の軽減ができる。Since the temperature is approximately constant, the subsequent Claus device can be operated stably and easily, and the load can be reduced.
■ 硫黄の補給１を大幅に減らせる（無補給も可能であ
る）ので運転操作が単純化でき、経済的である。■ Since the need for sulfur replenishment 1 can be significantly reduced (no replenishment is possible), operation can be simplified and it is economical.
■ 硫黄化合物含有ガスの冷却処理を行なうので、入口
ガスの温度が変動しても、良好な脱塵性能を維持できる
。■ Since the sulfur compound-containing gas is cooled, good dust removal performance can be maintained even if the temperature of the inlet gas fluctuates.
第１図は本発明の硫黄スクラバー式冷却・脱塵方法の実
施態様を説明する工程図である。
第２図は従来の硫黄回収方法の工程図であシ、第３図は
従来の硫黄スクラバー式脱塵方法の工程図である。FIG. 1 is a process diagram illustrating an embodiment of the sulfur scrubber type cooling/dust removal method of the present invention. FIG. 2 is a process diagram of a conventional sulfur recovery method, and FIG. 3 is a process diagram of a conventional sulfur scrubber type dust removal method.
Claims (3)
る方法において、回収した硫黄を硫黄化合物含有ガス中
へ直接スクラビングさせることにより、該ガスを温度１
４０〜１６０℃に冷却して該ガス中の炭素質を主とする
ダストの除去を行なうことを特徴とする硫黄スクラバー
式冷却・脱塵方法。(1) In a method for recovering elemental sulfur from a gas containing high concentration sulfur dioxide, the recovered sulfur is directly scrubbed into the gas containing sulfur compounds, and the gas is heated to 1
A sulfur scrubber type cooling/dedusting method characterized by cooling the gas to 40 to 160°C to remove dust mainly composed of carbonaceous substances in the gas.
ラビングすることにより、硫黄化合物含有ガスの温度を
１４０〜１６０℃まで冷却して脱塵した後、さらに液ガ
ス比２〜８ｌ／ｍ＾３にて液状硫黄をスクラビングして
脱塵を行なう特許請求の範囲第（１）項に記載される硫
黄スクラバー式冷却・脱塵方法。(2) By scrubbing liquid sulfur at a liquid gas ratio of 8 to 33 l/m^3, the temperature of the sulfur compound-containing gas is cooled to 140 to 160°C to remove dust, and then the liquid gas ratio is further increased to 2 to 8 l/m^3. A sulfur scrubber type cooling/dust removal method according to claim (1), wherein dust removal is performed by scrubbing liquid sulfur at /m^3.
凝縮させることにより、硫黄の補給量を滅じてまたは無
くして、硫黄の一部の連続的な入れ替えを行なうことに
よつて、硫黄中のダスト濃度を一定範囲に保つ特許請求
の範囲第（１）項または第（２）項に記載される硫黄ス
クラバー式冷却・脱塵方法。(3) By condensing the sulfur vapor in the sulfur compound-containing gas by cooling, the supply amount of sulfur is destroyed or eliminated, and a part of the sulfur is continuously replaced. A sulfur scrubber type cooling/dust removal method according to claim (1) or (2), which maintains the dust concentration within a certain range.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62056770A JP2530147B2 (en) | 1987-03-13 | 1987-03-13 | Sulfur scrubber type cooling / dust removal method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62056770A JP2530147B2 (en) | 1987-03-13 | 1987-03-13 | Sulfur scrubber type cooling / dust removal method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63225504A true JPS63225504A (en) | 1988-09-20 |
| JP2530147B2 JP2530147B2 (en) | 1996-09-04 |
Family
ID=13036713
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62056770A Expired - Lifetime JP2530147B2 (en) | 1987-03-13 | 1987-03-13 | Sulfur scrubber type cooling / dust removal method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2530147B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016136280A1 (en) * | 2015-02-24 | 2016-09-01 | 富士電機株式会社 | Exhaust gas processing apparatus |
-
1987
- 1987-03-13 JP JP62056770A patent/JP2530147B2/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016136280A1 (en) * | 2015-02-24 | 2016-09-01 | 富士電機株式会社 | Exhaust gas processing apparatus |
| JP2016155075A (en) * | 2015-02-24 | 2016-09-01 | 富士電機株式会社 | Exhaust gas treatment apparatus |
| US20170129578A1 (en) * | 2015-02-24 | 2017-05-11 | Fuji Electric Co., Ltd. | Exhaust gas processing apparatus |
| US9957029B2 (en) | 2015-02-24 | 2018-05-01 | Fuji Electric Co., Ltd. | Exhaust gas processing apparatus |
| US10252786B2 (en) | 2015-02-24 | 2019-04-09 | Fuji Electric Co., Ltd. | Exhaust gas processing apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2530147B2 (en) | 1996-09-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US12083468B2 (en) | Apparatus and method for particulate capture from gas streams and a method of removing soluble particulate from a gas | |
| US5733516A (en) | Process for removal of hydrogen sulfide from a gas stream | |
| US4124685A (en) | Method for substantially complete removal of hydrogen sulfide from sulfur bearing industrial gases | |
| BR112016000017B1 (en) | METHOD FOR THE REMOVAL OF UREA DUST FROM THE GASEOUS EFFLUENT, FINISHING EQUIPMENT FOR A UREA PLANT AND UREA PLANT | |
| US5935547A (en) | Process for treating gas containing hydrogen sulfide and sulphur dioxide, comprising a step for depleting the recycled solvent in sulphur | |
| JPH0584422A (en) | Method for refinin gas containing h2o, co2 | |
| JP7197732B2 (en) | Treatment of offgas from urea finishing | |
| US3864449A (en) | Regeneration of alkanolamine absorbing solution in gas sweetening processes | |
| US4086323A (en) | Process for removal of sulfur compounds from fuel gases | |
| EA034961B1 (en) | Removal of dust in urea finishing | |
| US6210454B1 (en) | Apparatus for treating a gas containing hydrogen sulphide and sulphur dioxide | |
| JPH0622651B2 (en) | Method to remove H 2 under S from sour gas stream | |
| US4499060A (en) | Process for removing hydrogen sulfide from gases, particularly coal distillation gases | |
| CA1151399A (en) | Method of washing h.sub.2s out of coke-oven gas | |
| JPH0620507B2 (en) | Liquid removal method | |
| JPH0366633A (en) | Reduction of liberation of chlorinated solvent | |
| JPS63225504A (en) | Sulfur scrubber type cooling and dedusting method | |
| US4381926A (en) | Method and apparatus for regulating ammonia concentration during scrubbing of gaseous mixtures | |
| KR100485866B1 (en) | Method of manufacturing sulphuric acid | |
| CA1219732A (en) | Single step purification of sulfur dioxide gas prepared by the combustion of sulfur containing compounds | |
| US3933994A (en) | Process for desulfurizing gases | |
| US5133949A (en) | Process and device for the removal of H2 S | |
| US3911082A (en) | Prevention of resin formation during absorption of CO{HD 2 {B and/or H{HD 2{B S from cracking gases | |
| KR100477962B1 (en) | Process for removing the very fine oxide particles that arise during regeneration of used plckling acids | |
| JPH0824818B2 (en) | Exhaust gas purification method |