JPH0421502A - Apparatus for recovery of hydrogen chloride - Google Patents
Apparatus for recovery of hydrogen chlorideInfo
- Publication number
- JPH0421502A JPH0421502A JP12307890A JP12307890A JPH0421502A JP H0421502 A JPH0421502 A JP H0421502A JP 12307890 A JP12307890 A JP 12307890A JP 12307890 A JP12307890 A JP 12307890A JP H0421502 A JPH0421502 A JP H0421502A
- Authority
- JP
- Japan
- Prior art keywords
- hydrogen chloride
- process gas
- steam
- ejector
- pipe
- 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
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 title claims abstract description 52
- IXCSERBJSXMMFS-UHFFFAOYSA-N hydrogen chloride Substances Cl.Cl IXCSERBJSXMMFS-UHFFFAOYSA-N 0.000 title claims abstract description 28
- 229910000041 hydrogen chloride Inorganic materials 0.000 title claims abstract description 28
- 238000011084 recovery Methods 0.000 title claims abstract description 14
- 239000007789 gas Substances 0.000 claims abstract description 17
- 238000000034 method Methods 0.000 claims abstract description 15
- 239000011521 glass Substances 0.000 claims abstract description 7
- 229920005989 resin Polymers 0.000 claims abstract description 6
- 239000011347 resin Substances 0.000 claims abstract description 6
- 229920001567 vinyl ester resin Polymers 0.000 claims abstract description 6
- 239000000126 substance Substances 0.000 claims description 4
- 239000000498 cooling water Substances 0.000 abstract description 7
- 238000007664 blowing Methods 0.000 abstract description 5
- 238000000576 coating method Methods 0.000 abstract description 5
- 239000011248 coating agent Substances 0.000 abstract description 4
- 239000000203 mixture Substances 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 description 5
- IISBACLAFKSPIT-UHFFFAOYSA-N bisphenol A Chemical compound C=1C=C(O)C=CC=1C(C)(C)C1=CC=C(O)C=C1 IISBACLAFKSPIT-UHFFFAOYSA-N 0.000 description 4
- 239000003990 capacitor Substances 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 229930185605 Bisphenol Natural products 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000003908 quality control method Methods 0.000 description 1
- 238000009877 rendering Methods 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、塩化水素回収装置、特に、ビスフェノールな
どの製造プラントで発生する塩化水素を含む希薄なプロ
セスガスから塩化水素を回収する装置に関する。DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a hydrogen chloride recovery device, and particularly to a device for recovering hydrogen chloride from a dilute process gas containing hydrogen chloride generated in a bisphenol production plant.
例えば、各種の化学物質を製造する化学プラントでは、
触媒として大量の塩化水素及び／又は塩酸か使用されて
いる。これらは外部に放出されれば重大な環境汚染を生
ずる上、原単位の点からも無駄にすることは許されない
から装置内で使用したものは厳重に、管理され、回収さ
れている。For example, in a chemical plant that manufactures various chemical substances,
Large amounts of hydrogen chloride and/or hydrochloric acid are used as catalysts. If these are released to the outside, they will cause serious environmental pollution, and from the point of view of basic unit consumption, it is unacceptable to waste them, so those used inside the equipment are strictly controlled and collected.
而して、例えば、ビスフェノールＡの製造装置に於いて
は、塩化水素及び／又は塩酸は使用後大部分はそのまま
回収されるが、残りの部分は１２０’Ｃ，１’Ｔｏｒｒ
程度のプロセスガスとの混合物として分離されるから、
これから塩化水素を共沸関係を利用して濃縮、回収する
必要かある。For example, in a bisphenol A production device, most of the hydrogen chloride and/or hydrochloric acid is recovered as is after use, but the remaining portion is recovered at 120'C and 1'Torr.
Because it is separated as a mixture with a certain amount of process gas,
From now on, it will be necessary to concentrate and recover hydrogen chloride using an azeotropic relationship.
この為、従来は内面にガラスライニングなどを施した多
段エゼクタやバロメトリックコンデンサ、水封式真空ポ
ンプ等を組み合わせた塩化水素回収装置が用いられてい
る。然しなから、これら従来公知の装置は、ピンホール
のない完全なライニングが得難く、品質管理が困難であ
る上、機械的ショックや振動に弱く、蒸気や冷却水によ
る熱ショツクやキヤビテーシヨンと塩酸の腐食性との相
乗効果による浸食、腐食か甚だしく、そのため寿命か短
く、比較的短期間で使用不能となるがそのような事故の
予見か不可能な上、その保守、交換等に際し、不可避的
に塩化水素及び／又は塩酸の散逸か生じたり、運転コス
トか上昇したりするという問題かあった。For this reason, hydrogen chloride recovery equipment has conventionally been used that combines a multi-stage ejector with a glass lining on the inside, a barometric condenser, a water ring vacuum pump, etc. However, with these conventionally known devices, it is difficult to obtain a complete lining without pinholes, quality control is difficult, and they are susceptible to mechanical shock and vibration, and are susceptible to heat shock and cavitation from steam and cooling water, and from hydrochloric acid. Erosion and corrosion due to the synergistic effect with corrosive properties are severe, resulting in a short lifespan and rendering the product unusable in a relatively short period of time. There were problems in that hydrogen chloride and/or hydrochloric acid were dissipated and operating costs increased.
本発明は畝上の観点に立ってなされたもので、本発明の
目的は、例えばヒスフェノールＡの様な化学物質製造過
程で発生する高真空のプロセスガスと塩化水素の混合物
から長期にわたって効率よく塩化水素を回収し得る装置
を提供することにある。The present invention has been made from the viewpoint of ridges, and an object of the present invention is to efficiently remove a mixture of high-vacuum process gas and hydrogen chloride generated in the manufacturing process of chemical substances such as hisphenol A over a long period of time. The object of the present invention is to provide an apparatus capable of recovering hydrogen chloride.
上記本発明の目的は、上記公知の塩化水素回収装置に於
いて、そのエゼクタとバロメトリックコンデンサの内面
の塩酸接触面をガラスフレークを含むビニールエステル
樹脂でコーティングすることに依って達成される。The above object of the present invention is achieved by coating the hydrochloric acid contact surfaces of the ejector and the inner surface of the barometric capacitor in the known hydrogen chloride recovery apparatus with a vinyl ester resin containing glass flakes.
〔発明を実施するための最良の態様〕 以下、図面により本発明の詳細な説明する。[Best mode for carrying out the invention] Hereinafter, the present invention will be explained in detail with reference to the drawings.
図面は本発明に係る塩化水素回収装置の要部構成を示す
一部破断側面図である。The drawing is a partially cutaway side view showing the main part configuration of the hydrogen chloride recovery apparatus according to the present invention.
而して、図中、１はエゼクタ、２はノ＼ロメトリックコ
ンデンサ、３は接続管である。In the figure, 1 is an ejector, 2 is a norometric capacitor, and 3 is a connecting pipe.
エゼクタｌは外套管１０、蒸気吹込管１１、ノズル１２
、バッキング押金具１３、○リング１４、及び盲栓１５
及び１６から成る。而して、外套管１０の内面、蒸気吹
込管１１の外面、ノズル１２の外面及び内面の一部の塩
酸に接触する部分には、それぞれガラスフレークを含む
ビニールエステル樹脂のコーティング１０ａ、ｌｌａ及
び１２ａが施される。The ejector l includes a mantle pipe 10, a steam blowing pipe 11, and a nozzle 12.
, backing pusher 13, ○ ring 14, and blind plug 15
and 16. Parts of the inner surface of the mantle tube 10, the outer surface of the steam blowing tube 11, and the outer and inner surfaces of the nozzle 12 that come into contact with hydrochloric acid are coated with vinyl ester resin containing glass flakes 10a, lla, and 12a, respectively. will be applied.
１０ｂは塩化水素を含むプロセスガスの導入管、１０ｃ
はプロセスガス導入管接続フランジ、ｌｌｂは蒸気供給
管接続フランジである。10b is an introduction pipe for a process gas containing hydrogen chloride, 10c
is a process gas introduction pipe connection flange, and llb is a steam supply pipe connection flange.
接続管３の内面にも、蒸気と同質のコーティング３ａが
施される。The inner surface of the connecting pipe 3 is also coated with a coating 3a having the same quality as steam.
バロメトリックコンデンサ２は、下部胴２０、中間胴２
１、上部胴２２及び蓋２３から成る。The barometric capacitor 2 includes a lower body 20 and an intermediate body 2.
1. Consists of an upper body 22 and a lid 23.
而して、下部胴２０の内面には全面的に上記と同質のガ
ラスフレークを含むビニールエステル樹脂のコーティン
グ２０ａか施される。The inner surface of the lower body 20 is entirely coated with a vinyl ester resin coating 20a containing glass flakes of the same quality as above.
２０ｂはエゼクタ１て圧縮された塩化水素を含むプロセ
スガスと蒸気の取入管であり、２０ｃは凝縮した塩酸の
回収管、２０ｄは内部を観察するための覗き窓の取付フ
ランジである。20b is an intake pipe for the process gas and steam containing compressed hydrogen chloride in the ejector 1, 20c is a recovery pipe for condensed hydrochloric acid, and 20d is a mounting flange for a viewing window for observing the inside.
図示されてはいないか、中間胴２１の内面も全面的に同
質のライニングか施されている。Although not shown, the inner surface of the intermediate barrel 21 is also entirely lined with the same material.
上部胴２２の内面にも全面的に上記と同質のライニング
２２ａか施される。２２ｂはプロセスガスの排出管、２
２ｃは図示されていない水封式ポンプに接続する接続部
、２２ｄは蓋取付フランジである。The inner surface of the upper body 22 is also entirely covered with a lining 22a of the same quality as above. 22b is a process gas discharge pipe;
2c is a connection part connected to a water ring type pump (not shown), and 22d is a lid attachment flange.
蓋２３にも、塩酸に接触する恐れのある総ての面に上記
同様のライニングが施される。２３ｂは上部胴２２の蓋
取付フランジ２２ｄに取り付けられる蓋本体、２３ｃは
冷却水導入管、２３ｄは冷却水供給管接続フランジであ
る。The lid 23 is also lined in the same manner as described above on all surfaces that may come into contact with hydrochloric acid. 23b is a lid body attached to the lid attachment flange 22d of the upper body 22, 23c is a cooling water introduction pipe, and 23d is a cooling water supply pipe connection flange.
図示されていない蒸気供給管からエゼクタ１の蒸気吹込
管１１に蒸気を供給し、ノズル１２から噴射すると、蒸
気供給管接続フランツｌｌｂに接続されている供給管か
らプロセスガスか吸引され、圧縮され、そのガスはハロ
メトリックコンデンサ２（こ送り込まれる。When steam is supplied from a steam supply pipe (not shown) to the steam blowing pipe 11 of the ejector 1 and injected from the nozzle 12, a process gas is sucked from the supply pipe connected to the steam supply pipe connection Franz Ilb, and is compressed. The gas is fed into the halometric condenser 2.
ハロメトリックコンデンサ２の頂部には、冷却水導入管
２３ｃか設けられており、ここから供給される冷却水に
より、プロセスガス中の塩化水素か吸収され、下端に設
けられている塩酸回収管接続部に接続される図示されて
いない大気脚兼用の回収管から流出する。A cooling water inlet pipe 23c is provided at the top of the halometric condenser 2, and hydrogen chloride in the process gas is absorbed by the cooling water supplied from this pipe, and a hydrochloric acid recovery pipe connection is provided at the lower end. It flows out from a collection pipe that also serves as an atmospheric leg (not shown) connected to the
プロセスガス排出管２２ｂは、図示されていない水封式
真空ポンプに接続されており、ここからは殆と完全に塩
化水素を除去されたプロセスガスか排出される。The process gas discharge pipe 22b is connected to a water ring vacuum pump (not shown), from which the process gas from which hydrogen chloride has been almost completely removed is discharged.
本発明に係る塩化水素回収装置は、上記のように構成さ
れるので、従来公知のビスフェノールＡなどの製造ライ
ンで使用されていた塩化水素回収装置に比して構造か簡
単で、塩化水素回収効率か高く、且つ、装置自身の製造
コストか安価である上、ライニングの寿命か長いので、
本発明を実施すれば多大の効果かある。Since the hydrogen chloride recovery device according to the present invention is configured as described above, it has a simpler structure and higher hydrogen chloride recovery efficiency than conventional hydrogen chloride recovery devices used in production lines such as bisphenol A. However, the manufacturing cost of the device itself is low, and the life of the lining is long.
Implementation of the present invention will have many effects.
図面は本発明に係る塩化水素回収装置の要部構成を示す
断面図である。
１−−−−−−−−一エゼクタ
２−−−一−・−−一−バロメトリックコンデンサ特許
出願人 （３１２）三井東圧化学株式会社代理人 （
７５２４）最上 正太部The drawing is a sectional view showing the main part configuration of the hydrogen chloride recovery apparatus according to the present invention. 1. Ejector 2. Barometric Capacitor Patent Applicant (312) Agent for Mitsui Toatsu Chemical Co., Ltd. (
7524) Mogami Shotabe
Claims (1)
プラントから発生する塩化水素を含む希薄なプロセスガ
スから塩化水素を回収する装置に於いて、 エゼクタとバロメトリックコンデンサの内面の塩酸接触
面をガラスフレークを含むビニールエステル樹脂でコー
ティングしたことを特徴とする上記の塩化水素回収装置
。[Claims] In an apparatus for recovering hydrogen chloride from a dilute process gas containing hydrogen chloride generated from a chemical plant, which comprises an ejector and a barometric condenser, the inner surfaces of the ejector and the barometric condenser are in contact with hydrochloric acid. The above-mentioned hydrogen chloride recovery device is characterized in that the hydrogen chloride recovery device is coated with a vinyl ester resin containing glass flakes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12307890A JP2919909B2 (en) | 1990-05-15 | 1990-05-15 | Hydrogen chloride recovery device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12307890A JP2919909B2 (en) | 1990-05-15 | 1990-05-15 | Hydrogen chloride recovery device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0421502A true JPH0421502A (en) | 1992-01-24 |
| JP2919909B2 JP2919909B2 (en) | 1999-07-19 |
Family
ID=14851650
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12307890A Expired - Fee Related JP2919909B2 (en) | 1990-05-15 | 1990-05-15 | Hydrogen chloride recovery device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2919909B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007182654A (en) * | 2006-01-02 | 2007-07-19 | Tokiko Irino | Moisture management socks |
| CN105712297A (en) * | 2016-04-28 | 2016-06-29 | 南阳师范学院 | High-efficiency production device for preparing hydrochloric acid by drying hydrogen chloride through water absorption |
-
1990
- 1990-05-15 JP JP12307890A patent/JP2919909B2/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007182654A (en) * | 2006-01-02 | 2007-07-19 | Tokiko Irino | Moisture management socks |
| CN105712297A (en) * | 2016-04-28 | 2016-06-29 | 南阳师范学院 | High-efficiency production device for preparing hydrochloric acid by drying hydrogen chloride through water absorption |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2919909B2 (en) | 1999-07-19 |
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