JPH03221140A - Adsorption treatment agent - Google Patents
Adsorption treatment agentInfo
- Publication number
- JPH03221140A JPH03221140A JP2089825A JP8982590A JPH03221140A JP H03221140 A JPH03221140 A JP H03221140A JP 2089825 A JP2089825 A JP 2089825A JP 8982590 A JP8982590 A JP 8982590A JP H03221140 A JPH03221140 A JP H03221140A
- Authority
- JP
- Japan
- Prior art keywords
- treatment agent
- adsorption treatment
- platinum group
- sepiolite
- rare earth
- 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
- 238000001179 sorption measurement Methods 0.000 title claims abstract description 39
- 238000011282 treatment Methods 0.000 title claims abstract description 33
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical group [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims abstract description 49
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 30
- 229910052697 platinum Inorganic materials 0.000 claims abstract description 17
- 239000004113 Sepiolite Substances 0.000 claims abstract description 15
- 229910052624 sepiolite Inorganic materials 0.000 claims abstract description 15
- 235000019355 sepiolite Nutrition 0.000 claims abstract description 15
- 229910052751 metal Inorganic materials 0.000 claims abstract description 14
- 239000002184 metal Substances 0.000 claims abstract description 14
- 229910052761 rare earth metal Inorganic materials 0.000 claims abstract description 10
- 150000002910 rare earth metals Chemical class 0.000 claims abstract description 10
- 229910052684 Cerium Inorganic materials 0.000 claims abstract description 9
- -1 pref. Substances 0.000 claims abstract description 4
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 claims description 17
- 229910052763 palladium Inorganic materials 0.000 claims description 9
- GWXLDORMOJMVQZ-UHFFFAOYSA-N cerium Chemical compound [Ce] GWXLDORMOJMVQZ-UHFFFAOYSA-N 0.000 claims description 7
- LSDPWZHWYPCBBB-UHFFFAOYSA-N Methanethiol Chemical compound SC LSDPWZHWYPCBBB-UHFFFAOYSA-N 0.000 abstract description 46
- 229910052746 lanthanum Inorganic materials 0.000 abstract description 3
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 abstract 2
- 229910052774 Proactinium Inorganic materials 0.000 abstract 1
- 239000007864 aqueous solution Substances 0.000 description 13
- 239000000243 solution Substances 0.000 description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 9
- WQOXQRCZOLPYPM-UHFFFAOYSA-N dimethyl disulfide Chemical compound CSSC WQOXQRCZOLPYPM-UHFFFAOYSA-N 0.000 description 8
- DNJIEGIFACGWOD-UHFFFAOYSA-N ethanethiol Chemical compound CCS DNJIEGIFACGWOD-UHFFFAOYSA-N 0.000 description 8
- CETBSQOFQKLHHZ-UHFFFAOYSA-N Diethyl disulfide Chemical compound CCSSCC CETBSQOFQKLHHZ-UHFFFAOYSA-N 0.000 description 6
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 6
- 229910017604 nitric acid Inorganic materials 0.000 description 6
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 description 5
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 5
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical class S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 5
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 5
- 235000011114 ammonium hydroxide Nutrition 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 5
- 150000002019 disulfides Chemical class 0.000 description 5
- 238000001035 drying Methods 0.000 description 5
- 229910052739 hydrogen Inorganic materials 0.000 description 5
- 239000001257 hydrogen Substances 0.000 description 5
- 239000000203 mixture Substances 0.000 description 5
- 238000005406 washing Methods 0.000 description 5
- 239000011521 glass Substances 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- AQBOUNVXZQRXNP-UHFFFAOYSA-L azane;dichloropalladium Chemical compound N.N.N.N.Cl[Pd]Cl AQBOUNVXZQRXNP-UHFFFAOYSA-L 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- FZLIPJUXYLNCLC-UHFFFAOYSA-N lanthanum atom Chemical compound [La] FZLIPJUXYLNCLC-UHFFFAOYSA-N 0.000 description 3
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 3
- HSJPMRKMPBAUAU-UHFFFAOYSA-N cerium(3+);trinitrate Chemical compound [Ce+3].[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O HSJPMRKMPBAUAU-UHFFFAOYSA-N 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000003795 desorption Methods 0.000 description 2
- 230000002542 deteriorative effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 241000276425 Xiphophorus maculatus Species 0.000 description 1
- 239000003463 adsorbent Substances 0.000 description 1
- QGZKDVFQNNGYKY-UHFFFAOYSA-N ammonia Natural products N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 1
- JYSAWBDXSVLKCG-UHFFFAOYSA-J azane;platinum(4+);tetrachloride Chemical compound N.N.N.N.N.N.[Cl-].[Cl-].[Cl-].[Cl-].[Pt+4] JYSAWBDXSVLKCG-UHFFFAOYSA-J 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000001877 deodorizing effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 239000010970 precious metal Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- FBEIPJNQGITEBL-UHFFFAOYSA-J tetrachloroplatinum Chemical compound Cl[Pt](Cl)(Cl)Cl FBEIPJNQGITEBL-UHFFFAOYSA-J 0.000 description 1
Landscapes
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
- Treating Waste Gases (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明はメチルメルカプタン、エチルメルカプタン等の
メルカプタン類を含有する悪臭ガスを脱臭する吸着処理
剤に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to an adsorption treatment agent for deodorizing malodorous gases containing mercaptans such as methyl mercaptan and ethyl mercaptan.
悪臭物質に指定されているメチルメルカプタンはその排
出濃度が法規制（悪臭防止法施行規則）されているが、
これを効率よく吸着除去する実用的な吸着剤がみあたら
なかった。Methyl mercaptan, which is designated as a malodorous substance, has its emission concentration regulated by law (Enforcement Ordinance of the Offensive Odor Prevention Act).
No practical adsorbent has been found that efficiently adsorbs and removes this.
したがって本発明は従来吸着除去することが困難であっ
たメチルメルカプタン、エチルメルカプタン等のメルカ
プタン類をより臭気強度が低く吸着されやすい二硫化ジ
メチル、二硫化ジエチル等の二硫化物に変換し、これら
を効率よく吸着除去する吸着処理剤を提供することを目
的とする。Therefore, the present invention converts mercaptans such as methyl mercaptan and ethyl mercaptan, which have conventionally been difficult to adsorb and remove, into disulfides such as dimethyl disulfide and diethyl disulfide, which have lower odor intensity and are more easily adsorbed. The purpose of the present invention is to provide an adsorption treatment agent that efficiently adsorbs and removes.
〔問題点を解決するための手段および作用〕本発明者等
は上記目的に沿って鋭意研究をおこなった結果、常温で
メチルメルカプタン、エチルメルカプタン等のメルカプ
タン類を二硫化ジメチル、二硫化ジエチル等の二硫化物
に変換しこれらを効率よく吸着除去する吸着処理剤を見
出した。[Means and effects for solving the problem] As a result of intensive research in accordance with the above objectives, the present inventors have found that mercaptans such as methyl mercaptan and ethyl mercaptan can be converted into dimethyl disulfide, diethyl disulfide, etc. at room temperature. We have discovered an adsorption treatment agent that converts disulfides into disulfides and efficiently adsorbs and removes them.
すなわち１本発明の吸着処理剤はセピオライトに白金族
金属、好ましくはＰｔまたはｐｔとＰｄを担持させたこ
とを特徴とする。また、本発明の吸着処理剤は、白金族
金属のほかに希土類金属、好ましくはＣｅまたはＬａを
担持させることができる。白金族金属の担持量は０．５
〜５ｇ ／ Ｑ、好ましくは１〜２ｇ／Ｑであり、稀土
類金属の担持量は１〜１００ｇ／１１、好ましくは５〜
２０ｇ／（ｔである。Specifically, the adsorption treatment agent of the present invention is characterized in that a platinum group metal, preferably Pt or pt and Pd, is supported on sepiolite. Further, the adsorption treatment agent of the present invention can support a rare earth metal, preferably Ce or La, in addition to the platinum group metal. The amount of platinum group metal supported is 0.5
~5g/Q, preferably 1~2g/Q, and the amount of rare earth metal supported is 1~100g/11, preferably 5~
20g/(t).
白金族金属や希土類金属は通常の方法によって担持する
ことができる。Platinum group metals and rare earth metals can be supported by conventional methods.
本発明の吸着処理剤は強い悪臭を有するメチルメルカプ
タン、エチルメルカプタン等のメルカプタン類をより臭
気強度が低く吸着除去しゃすい二硫化ジメチル、二硫化
ジエチル等の二硫化物に常温で変換することができ、変
換と同時に生成した二硫化物を効率よく吸着除去するこ
とができるものであり、メルカプタン類を含有する悪臭
ガスを効率よく脱臭することができる以下に本発明を実
施例によりさらに詳しく説明する。The adsorption treatment agent of the present invention can convert mercaptans such as methyl mercaptan and ethyl mercaptan, which have a strong odor, into disulfides such as dimethyl disulfide and diethyl disulfide, which have a lower odor intensity and are easier to remove by adsorption, at room temperature. This invention is capable of efficiently adsorbing and removing disulfides produced simultaneously with the conversion, and can efficiently deodorize malodorous gases containing mercaptans.The present invention will be explained in more detail with reference to Examples below.
実施例１
■％硝酸溶液で前処理した１枚当り５０■×１８ｍＸ６
■の板状セピオライト３６枚を、ヘキサンアンミン白金
（ＩＶ）塩化物水溶液（１，４６３％ｐｔ含量）２１．
４−に２８％アンモニア水（和光純薬製）３．２ｇを加
えＰＨ１０，５にＩＩＩＮ、１．ｉ４−に稀釈した溶液
に浸漬した。Example 1 50×18m×6 per sheet pretreated with ■% nitric acid solution
Thirty-six sheets of plate-like sepiolite (2) were mixed with a hexane ammine platinum (IV) chloride aqueous solution (1,463% pt content) 21.
Add 3.2 g of 28% ammonia water (manufactured by Wako Pure Chemical Industries, Ltd.) to 4-, IIIN to pH 10.5, and 1. i4- diluted solution.
水洗乾燥したのち水素気流中５００℃の温度で還元し、
Ｐｔ換算で１．４８ｇ／Ｊの白金を担持した吸着処理剤
Ａを得た。After washing with water and drying, it is reduced at a temperature of 500℃ in a hydrogen stream,
An adsorption treatment agent A carrying 1.48 g/J of platinum in terms of Pt was obtained.
実施例２
ヘキサンアンミン白金（ＩＶ）塩化物水溶液（１，４ｆ
ｌｉ３％ｐｔ含量）２８．５−およびテトラアンミンパ
ラジウム（ＩＩ）塩化物水溶液（０，９９１％Ｐｄ含量
）２１．１−を用いたことを除いては実施例１と同様に
してｐｔ換算で１．８９ｇ／４１の白金およびＰｄ換算
で０．９９ｇ／Ｑのパラジウムを担持した吸着処理剤Ｂ
を得た。Example 2 Hexaneammineplatinum(IV) chloride aqueous solution (1,4f
The same procedure as in Example 1 was carried out to obtain 1.1% in terms of pt, except that li3% pt content) 28.5- and tetraammine palladium (II) chloride aqueous solution (0,991% Pd content) 21.1- were used. Adsorption treatment agent B carrying 89g/41 platinum and 0.99g/Q palladium in terms of Pd
I got it.
板状セピオライトと得られた吸着処理剤ＡおよびＢを１
６１のガラス製反応槽にそれぞれ２枚設置しメチルメル
カプタンを槽内濃度が１０００ｐｐａ＋になるように注
入し常温（２７〜３０℃）でファンを使用して槽内大気
を循環させながらメチルメルカプタンの経時濃度変化を
測定しその結果を第１図に示す。Platy sepiolite and the obtained adsorption treatment agents A and B were mixed into 1
Two glass reactors were installed in each of the 61 glass reaction tanks, and methyl mercaptan was injected so that the concentration in the tank was 1000 ppa+, and the methyl mercaptan was aged at room temperature (27 to 30°C) while circulating the atmosphere inside the tank using a fan. The concentration change was measured and the results are shown in FIG.
４時間メチルメルカプタンの吸着処理を行ったものを取
出し加温して吸着されたガスを脱着したところ二硫化ジ
メチルが検出された。After 4 hours of methyl mercaptan adsorption treatment, the sample was taken out and heated to desorb the adsorbed gas, and dimethyl disulfide was detected.
実施例３
（ａ）Ｐｔ １．５ｇ／ｎ担持用水溶液の調整ヘキサア
ンミン白金（ｆＶ）塩化物水溶液（１，４６５％Ｐｔ含
有）２１．３７９ｇに２８％アンモニア水１．２６０ｇ
を撹拌下に添加後、全量を１４４０−に調整した。ｐＨ
は９．８６であった。Example 3 (a) Preparation of aqueous solution for supporting 1.5 g/n of Pt 21.379 g of hexaammineplatinum (fV) chloride aqueous solution (containing 1,465% Pt) and 1.260 g of 28% ammonia water
was added under stirring, and the total amount was adjusted to 1440-. pH
was 9.86.
ヘキサアンミン白金（ＩＶ）塩化物水溶液（１，４６５
％Ｐｔ含有）１４．２５３ｇとテトラアンミンパラジウ
ム（■）塩化物水溶液（０，９９１％Ｐｄ含有）１０．
５３５ｇよりなる水溶液中に２８％アンモニア水ｌ。Hexaammineplatinum(IV) chloride aqueous solution (1,465
% Pt content) 14.253 g and tetraamine palladium (■) chloride aqueous solution (0.991% Pd content) 10.
28% aqueous ammonia l in an aqueous solution consisting of 535 g.
２６０ｇを撹拌下に添加後、全量を１４４０−とじた。After adding 260 g with stirring, the entire amount was capped at 1440 mm.
ｐＨは１０．０であった。pH was 10.0.
（ｃ） Ｃｅ １１．２ｇ／ｎ担持用水溶液の調整Ｃｅ
（Ｎｏり、・６Ｈ２０の２０．２２ｇを水にとかし全量
を１５００＋ｄとした。(c) Preparation of aqueous solution for supporting Ce 11.2g/nCe
(No. 20.22 g of 6H20 was dissolved in water to make a total amount of 1500+d.
（ｄ）希土類含有吸着処理剤の調整
（イ）Ｃｅの担持
１％硝酸水溶液で前処理した１枚当り５ｏ■Ｘ１８Ｉｌ
１ｍ×６■の板状セピオライト３６枚を前記（ｃ）でＩ
ＩＩＩした溶液に浸漬、水洗、乾燥後、５５０℃で２時
間焼成する。(d) Preparation of rare earth-containing adsorption treatment agent (a) Ce supported 5o x 18Il per sheet pretreated with 1% nitric acid aqueous solution
36 plate-shaped sepiolite sheets of 1 m x 6 cm were treated in (c) above.
After immersing in the solution prepared in III, washing with water, drying, and baking at 550° C. for 2 hours.
（ロ）貴金属の担持
（イ）で＊＊された板状セピオライト３６枚を前記（ａ
）または（ｂ）の水溶液に浸漬後、水洗、乾燥したのち
、水素気流中５００℃で還元する。(b) Precious metal support (a) 36 plate-shaped sepiolite **
) or (b), washed with water, dried, and then reduced at 500°C in a hydrogen stream.
なお、Ｃｅを併用しない場合は、１％硝酸水溶液で前処
理した１枚当り５０■Ｘ１８ｍＸ１６■の板状セピオラ
イト３６枚を直接前記（ａ）または（ｂ）の水溶液に浸
漬後、水洗、乾燥したのち、水素気流中５００℃で還元
する。In addition, when Ce is not used in combination, 36 sheets of sepiolite plates with a size of 50 x 18 m x 16 cm per sheet pretreated with a 1% nitric acid aqueous solution are directly immersed in the aqueous solution of (a) or (b), washed with water, and dried. Afterwards, it is reduced at 500°C in a hydrogen stream.
（ｅ）耐熱性のテスト 繰り返し性能をテストするため。(e) Heat resistance test To repeatedly test performance.
＆１． Ｐｔ １．５ｇ／Ｑ担持
に２． Ｐｔ １．５ｇ／ Ｑ 、Ｃｅ １１．２ｇ／
Ｑ担持恥３． Ｐｔ １．５ｇ／氾、Ｐｄ ０．５
ｇ／１２担持に４． Ｐｔ １．５ｇ／Ｑ、Ｐｄ Ｏ
，５ｇ／Ｑ、Ｃｅ １１．２ｇ／ｆｆ担持Ｈａｓ、 Ｃ
ｅ １１．２ｇ／ Ｑ担持Ｎ１１６．セピオライトのみ
の６種の吸着処理剤について下記の方法により繰り返し
性能テストをした。すなわち、 １６ａのガラス製反応
槽にそれぞれ吸着処理剤２枚を設置しメチルメルカプタ
ンを槽内濃度９０ＰＰＭになるように注入し、常温（２
０〜２５℃）でファンを使用し槽内大気を循環させなが
ら３０分吸着させ、その時のメチルメルカプタン残存率
をプロットした。その後３００℃で３０分加熱後３０分
放冷した。放冷後再びメチルメルカプタンを槽内濃度９
０ＰＰＭになるように注入し、常温（２０〜２５℃）で
ファンを使用し槽内大気を循環させながら３０分吸着さ
せ、その時のメチルメルカプタン残存率をプロットした
。その後３００℃で３０分加熱後３０分放冷した。&1. 2. Pt 1.5g/Q supported. Pt 1.5g/Q, Ce 11.2g/
Q carrying shame 3. Pt 1.5g/flood, Pd 0.5
4. g/12 loading. Pt 1.5g/Q, PdO
, 5g/Q, Ce 11.2g/ff supported Has, C
e 11.2g/Q supported N116. Six types of adsorption treatment agents containing only sepiolite were repeatedly tested for performance using the following method. That is, two sheets of adsorption treatment agent were installed in each of the glass reaction tanks 16a, methyl mercaptan was injected to a concentration of 90 PPM in the tank, and the mixture was heated to room temperature (2
Adsorption was carried out for 30 minutes at a temperature of 0 to 25° C. while circulating the atmosphere in the tank using a fan, and the residual rate of methyl mercaptan at that time was plotted. Thereafter, it was heated at 300° C. for 30 minutes and then allowed to cool for 30 minutes. After cooling, methyl mercaptan was added again to a concentration of 9 in the tank.
The mixture was injected to a concentration of 0 PPM and adsorbed for 30 minutes at room temperature (20 to 25° C.) while circulating the air inside the tank using a fan, and the residual rate of methyl mercaptan at that time was plotted. Thereafter, it was heated at 300° C. for 30 minutes and then allowed to cool for 30 minutes.
以後この操作をくり返し吸着時３０分後のメチルメルカ
プタン残存率をプロットした。その結果をつぎの表に示
す。Thereafter, this operation was repeated and the residual rate of methyl mercaptan after 30 minutes of adsorption was plotted. The results are shown in the table below.
上記の表からＣｅを添加した吸着処理剤は繰り返し性能
においてすぐれていることが認められる。From the above table, it is recognized that the adsorption treatment agent to which Ce is added has excellent repeat performance.
第１図はメチルメルカプタンの濃度と時間の関係を示す
グラフである。
第
図
手続補正書
事件の表示
平成２年特許願第８９８２５号
発明の名称
吸着処理剤
補正をする者
事件との関係 特許出願人
代
東京都千代田区丸の内１丁目１番３号
日揮ユニバーサル株式会社
代表者 山 １）伸 雄
埋入
東京都新宿区新宿１丁目１３番４号（〒１６０）くにひ
ろビル
（９４４６）弁理士友松英爾
電話東京（２２６） ４７０１
６、補正の内容
（１）明細書第３頁第２〜３行のｒｐｔまたはｐｔとＰ
ｄＪを「白金または白金とパラジウム」と補正する。
（２）同書第３頁第５行のｒＣｅまたはＬａＪを「セリ
ウムまたはランタン」と補正する。
（３）同書第３頁第６行の「担持量は」を「担持量は金
属換算で」と補正する。
（４）同書第３頁第８行の「担持量は」を「担持量はＣ
ｅ換算で」と補正する。
（５）同書第３頁末行に下記の文を挿入する。
「白金族にさらに希土類金属とくにセリウムを担持させ
ることにより吸着性能が改善され加熱脱着処理を行って
も吸着性能が劣化しにくい耐熱性をも具備する。」
（６）同書第５頁第４行の「常温」を「室温」と補正す
る。
（７）同書第５頁第１１行〜第８頁下から第４行の「実
施例３・・・・・・認められる。」を下記のとおり補正
する。
実施例３
１％硝酸溶液で前処理した１枚当り５０ｍＸ１８■ｘ６
．＠の板状セピオライト３６枚を、ヘキサアンミン白金
（ｒＶ）塩化物溶液（１，４６５％ｐｔ含量） ２１．
３７９ｇに２８％アンモニア水（和光純薬１）１．２６
０ｇを加えｐＨ９，８６４，、調整し１４４０＋＋ｌ：
稀釈した溶液に浸漬した。水洗、乾燥したのち水素気流
中５００℃の温度で還元し、Ｐｔ換算で１．５ｇ／Ｑの
白金を担持した吸着処理剤Ｃを得た。
実施例４
１％硝酸溶液で前処理した１枚当り５ｏ■×１８鞠×６
■の板状セピオライト３６枚を、ヘキサアンミン白金（
ｍＶ）塩化物溶液（１，４６５％Ｐｔ含量） １４．２
５３ｇにテトラアンミンパラジウム（ＩＩ）塩化物水溶
液（０，９９１％Ｐｄ含量） １０，５３５ｇ ’ｒ添
加し２８％アンモニア水（和光純薬ｍｌ） １．２６０
ｇをさらに加えｐＨ１０，０に調整し１４４ｏ−に稀釈
した溶液に浸漬した。水洗、乾燥したのち水素気流中５
００℃の温度で還元し、Ｐｔ換算で１．０ｇ／Ｑの白金
およびＰｄ換算で０．５ｇ／Ｑのパラジウムを担持した
吸着処理剤りを得た。
比較例１
１％硝酸溶液で前処理した１枚当り５０ｍＸ１８鵬×６
閣の板状セピオライト３６枚を、硝酸セリウム（ｎ［）
［Ｃｅ （Ｎ ０３）−” ６ Ｈｚ Ｏ） ２０
．２２ｇを水に溶かし全量を１５００−とじた溶液に浸
漬した。水洗、乾燥したのち５５０’Ｃの温度で２時間
焼成しＣｅ換算で１１．２ｇ／Ｑセリウムを担持した吸
着処理剤Ｅを得た。
実施例５
セリウムを担持した前記吸着処理剤Ｅに、実施例３と同
様にしてさらにＰｔ換算で１．５ｇ／悲の白金を担持し
た吸着処理剤Ｆを得た。
実施例６
セリウムを担持した前記吸着処理剤Ｅに、実施例４と同
様にしてさらにＰｔ換算で１．０ｇ／２の白金およびＰ
ｄ換算で０．５ ｇ ／ Ｑのパラジウムを担持した吸
着処理剤Ｇを得た。
メチルメルカプタンの繰り返し性能試験得られた吸着分
解脱臭剤ＣおよびＧならびにセピオライトを１６１２の
ガラス製の反応槽内にそれぞれ２枚設置し、メチルメル
カプタンを槽内濃度が９０ｐｐｍになるように注入し、
室温（２０〜２５℃）でファンを使用し槽内大気を循環
させながら３０分間放置したのちのメチルメルカプタン
濃度の変化を測定し、残存率（％）を初期濃度Ｃ０と経
時濃度Ｃｔとの以下の関係式により求めた。
その後、ファンを止め３０分間触媒表面温度を３００℃
まで昇温加熱し吸着したメチルメルカプタンを脱着処理
した後、３０分ファンを回し放冷した。放冷後再びメチ
ルメルカプタンを槽内濃度が９０ｐｐｍになるように注
入し、室温（２０〜２５℃）でファンを使用し槽内大気
を循環させながら３０分間放置したのちのメチルメルカ
プタン濃度の変化を測定し、同様にして残存率（％）を
求めた。同様の操作を繰り返し行いその結果を第１表に
示す。
第１表
第１表より明らかにセリウムを添加することによってメ
チルメルカプタンの吸着性能の向上が認められるのみな
らず繰り返し加熱脱着処理を行っても吸着性能が劣化し
にくい優れた繰り返し特性を有することがわかる。
以上FIG. 1 is a graph showing the relationship between the concentration of methyl mercaptan and time. Diagram Display of written amendment case 1990 Patent Application No. 89825 Name of the invention Adsorption treatment agent Relationship to the case Patent applicant 1-1-3 Marunouchi, Chiyoda-ku, Tokyo Representative of JGC Universal Co., Ltd. Person Yama 1) Takeo Nobubu 1-13-4 Shinjuku, Shinjuku-ku, Tokyo (160) Kunihiro Building (9446) Patent attorney Eiji Tomomatsu Telephone Tokyo (226) 4701 6. Contents of amendment (1) Specification rpt or pt and P on page 3, lines 2-3
Correct dJ to "platinum or platinum and palladium". (2) rCe or LaJ on page 3, line 5 of the same book is corrected to "cerium or lanthanum." (3) In the same book, page 3, line 6, ``The amount supported'' is corrected to ``The amount supported is in terms of metal.'' (4) In the same book, page 3, line 8, “The amount of support is” is changed to “The amount of support is C.
Corrected as "e conversion." (5) Insert the following sentence in the last line of page 3 of the same book. “By further supporting rare earth metals, especially cerium, on the platinum group, the adsorption performance is improved, and it also has heat resistance that prevents the adsorption performance from deteriorating even when subjected to thermal desorption treatment.” (6) Ibid., page 5, line 4. Correct "normal temperature" to "room temperature". (7) "Example 3...Accepted" in the same book, page 5, line 11 to page 8, line 4 from the bottom, is amended as follows. Example 3 50m x 18 x 6 per sheet pretreated with 1% nitric acid solution
．． 36 sheets of plate-shaped sepiolite of @ were mixed with hexaammineplatinum (rV) chloride solution (1,465% pt content) 21.
28% ammonia water (Wako Pure Chemical 1) 1.26 to 379g
Add 0g to pH 9,864, adjust to 1440++l:
Immersed in diluted solution. After washing with water and drying, the mixture was reduced at a temperature of 500° C. in a hydrogen stream to obtain an adsorption treatment agent C carrying platinum of 1.5 g/Q in terms of Pt. Example 4 Pretreated with 1% nitric acid solution, 5 o x 18 x 6 per sheet
36 plate-shaped sepiolite sheets of ■ are mixed with hexaammine platinum (
mV) Chloride solution (1,465% Pt content) 14.2
Add 10,535 g of tetraammine palladium (II) chloride aqueous solution (0,991% Pd content) to 53 g and add 28% ammonia water (Wako Pure Chemical Industries ml) 1.260
g was further added to adjust the pH to 10.0, and the sample was immersed in a solution diluted to 144°. After washing with water and drying, place in a hydrogen stream 5
The adsorption agent was reduced at a temperature of 00° C. to obtain an adsorption treatment agent supporting 1.0 g/Q of platinum in terms of Pt and 0.5 g/Q of palladium in terms of Pd. Comparative Example 1 Pretreated with 1% nitric acid solution 50m x 18mm x 6 pieces per sheet
36 tabular sepiolite sheets were treated with cerium nitrate (n[)
[Ce (N 03)-” 6 Hz O) 20
．． 22g was dissolved in water and the entire amount was immersed in a solution of 1500-g. After washing with water and drying, the mixture was calcined at a temperature of 550'C for 2 hours to obtain an adsorption treatment agent E carrying 11.2 g/Q cerium in terms of Ce. Example 5 In the same manner as in Example 3, an adsorption treatment agent F was obtained in which 1.5 g of platinum (calculated as Pt) was further supported on the adsorption treatment agent E that supported cerium. Example 6 In the same manner as in Example 4, 1.0 g/2 of platinum and P in terms of Pt were added to the adsorption treatment agent E carrying cerium.
An adsorption treatment agent G carrying palladium of 0.5 g/Q in terms of d was obtained. Repeated performance test of methyl mercaptan Two pieces of each of the obtained adsorption-decomposition deodorizers C and G and sepiolite were placed in a 1612 glass reaction tank, and methyl mercaptan was injected so that the concentration in the tank was 90 ppm.
The change in methyl mercaptan concentration was measured after leaving the tank for 30 minutes at room temperature (20 to 25°C) while circulating the air inside the tank using a fan, and the residual rate (%) was determined to be less than the initial concentration C0 and the concentration over time Ct. It was calculated using the relational expression. After that, stop the fan and keep the catalyst surface temperature at 300℃ for 30 minutes.
After the adsorbed methyl mercaptan was desorbed by heating to a temperature of 100°C, the mixture was left to cool with a fan running for 30 minutes. After cooling, methyl mercaptan was again injected so that the concentration in the tank was 90 ppm, and the tank was left at room temperature (20-25°C) for 30 minutes while circulating the atmosphere inside the tank using a fan.Then, the change in methyl mercaptan concentration was observed. The residual rate (%) was determined in the same manner. Similar operations were repeated and the results are shown in Table 1. Table 1 From Table 1, it is clear that the addition of cerium not only improves the adsorption performance of methyl mercaptan, but also that it has excellent repeatability properties that prevent the adsorption performance from deteriorating even after repeated thermal desorption treatments. Recognize. that's all
Claims (1)
とする吸着処理剤。 ２、セピオライトに白金族金属および希土類金属を担持
させたことを特徴とする吸着処理剤。 ３、白金族金属が白金である請求項１または２記載の吸
着処理剤。 ４、白金族金属が白金およびパラジウムである請求項１
または２記載の吸着処理剤。 ５、希土類金属がセリウムである請求項１、２３または
４記載の吸着処理剤。[Scope of Claims] 1. An adsorption treatment agent characterized by carrying a platinum group metal on sepiolite. 2. An adsorption treatment agent characterized by supporting platinum group metals and rare earth metals on sepiolite. 3. The adsorption treatment agent according to claim 1 or 2, wherein the platinum group metal is platinum. 4. Claim 1, wherein the platinum group metal is platinum and palladium.
or the adsorption treatment agent according to 2. 5. The adsorption treatment agent according to claim 1, 23 or 4, wherein the rare earth metal is cerium.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2089825A JP3025792B2 (en) | 1989-11-20 | 1990-04-04 | Deodorizing treatment method using adsorption treatment agent |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1-299533 | 1989-11-20 | ||
| JP29953389 | 1989-11-20 | ||
| JP2089825A JP3025792B2 (en) | 1989-11-20 | 1990-04-04 | Deodorizing treatment method using adsorption treatment agent |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03221140A true JPH03221140A (en) | 1991-09-30 |
| JP3025792B2 JP3025792B2 (en) | 2000-03-27 |
Family
ID=26431231
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2089825A Expired - Fee Related JP3025792B2 (en) | 1989-11-20 | 1990-04-04 | Deodorizing treatment method using adsorption treatment agent |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3025792B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5447701A (en) * | 1990-12-28 | 1995-09-05 | Nikki-Universal Co., Ltd. | Gas purification method |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5694143A (en) | 1994-06-02 | 1997-12-02 | Accelerix Limited | Single chip frame buffer and graphics accelerator |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5729814A (en) * | 1980-07-30 | 1982-02-17 | Nippon Seiko Kk | Dynamic-pressure type fluid bearing |
| JPS60121308A (en) * | 1984-08-21 | 1985-06-28 | Nippon Seiko Kk | Dynamic pressure type composite bearing device |
| JPS62246619A (en) * | 1986-04-17 | 1987-10-27 | Matsushita Electric Ind Co Ltd | Dynamic pressure type fluid bearing device |
-
1990
- 1990-04-04 JP JP2089825A patent/JP3025792B2/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5729814A (en) * | 1980-07-30 | 1982-02-17 | Nippon Seiko Kk | Dynamic-pressure type fluid bearing |
| JPS60121308A (en) * | 1984-08-21 | 1985-06-28 | Nippon Seiko Kk | Dynamic pressure type composite bearing device |
| JPS62246619A (en) * | 1986-04-17 | 1987-10-27 | Matsushita Electric Ind Co Ltd | Dynamic pressure type fluid bearing device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5447701A (en) * | 1990-12-28 | 1995-09-05 | Nikki-Universal Co., Ltd. | Gas purification method |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3025792B2 (en) | 2000-03-27 |
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