JP5884128B2 - 一酸化炭素の選択酸化方法 - Google Patents
一酸化炭素の選択酸化方法 Download PDFInfo
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- JP5884128B2 JP5884128B2 JP2013501910A JP2013501910A JP5884128B2 JP 5884128 B2 JP5884128 B2 JP 5884128B2 JP 2013501910 A JP2013501910 A JP 2013501910A JP 2013501910 A JP2013501910 A JP 2013501910A JP 5884128 B2 JP5884128 B2 JP 5884128B2
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- hydrocarbon
- catalyst
- carbon monoxide
- gas
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- 150000003057 platinum Chemical class 0.000 description 1
- 239000002574 poison Substances 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 229920001643 poly(ether ketone) Polymers 0.000 description 1
- 229920002492 poly(sulfone) Polymers 0.000 description 1
- 229920001197 polyacetylene Polymers 0.000 description 1
- 229920002239 polyacrylonitrile Polymers 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 229920002480 polybenzimidazole Polymers 0.000 description 1
- 229920002577 polybenzoxazole Polymers 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920000570 polyether Polymers 0.000 description 1
- 229920006393 polyether sulfone Polymers 0.000 description 1
- 229920001601 polyetherimide Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920001721 polyimide Polymers 0.000 description 1
- 229920002981 polyvinylidene fluoride Polymers 0.000 description 1
- 229910000027 potassium carbonate Inorganic materials 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000010926 purge Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000012495 reaction gas Substances 0.000 description 1
- 230000009257 reactivity Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 238000010517 secondary reaction Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 238000007873 sieving Methods 0.000 description 1
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 description 1
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 1
- 229910052911 sodium silicate Inorganic materials 0.000 description 1
- 239000007790 solid phase Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 230000002123 temporal effect Effects 0.000 description 1
- VZCYOOQTPOCHFL-UHFFFAOYSA-N trans-butenedioic acid Natural products OC(=O)C=CC(O)=O VZCYOOQTPOCHFL-UHFFFAOYSA-N 0.000 description 1
- 239000010457 zeolite Substances 0.000 description 1
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Description
Techniques de l’Ingenieur J3 390 1−20
(a)少なくとも一種の炭化水素と、酸素または酸素含有ガスを適当な触媒と接触させて、少なくとも一種の炭化水素誘導体と、未変換炭化水素と、酸素と、一酸化炭素とを含むガス混合物にし、
(b)段階(a)からの反応流から上記炭化水素誘導体を分離または抽出し、
(c)所定温度で一酸化炭素を二酸化炭素に酸化できる固体触媒を含む流動床を使用してガス流体中に存在する一酸化炭素を二酸化炭素に変換して、一酸化炭素が減少したガス流を作り、
(d)上記の一酸化炭素が減少したガス流を段階(a)に再循環する。
(1)一般に使用される温度、圧力条件下で非凝縮性の軽質化合物:窒素、未変換酸素、未変換プロピレン、プロパン中に存在するか、熱バラストとして加えたプロピレン、最終酸化で生じるか、再循環によってプロセス中を循環する少量の一酸化炭素および二酸化炭素、
(2)凝縮可能な軽質化合物:特にプロピレンの酸化反応で生じる水、未変換アクロレイン、軽質アルデヒド、例えばホルムアルデヒドおよびアセトアルデヒド、酸、例えば酢酸、反応帯域でできる主要不純物、
(3)重質化合物:フルフラール、ベンズアルデヒド、マイレン酸、無水マレイン酸、安息香酸、2−ブテン酸、フェノール等。
実験の部
酸化試験は触媒高さが30cm(すなわち164g)の融解塩浴から成る内径が25.4mmの応装置中でジョンソン・マッセイ社からの触媒(CeO2上に2%のプラチナ)を使用して純粋化合物で実行した。
CO: 2.8モル%
プロピレン: 0.75モル%
アクロレイン:0.75モル%
プロパン: 50モル%
必要に応じて水
固定触媒床で、下記濃度の化合物CO、CO2、プロパン、プロピレン、アクロレイン、水および酸素の混合物から成る流れを用いて実施例1を繰り返して、COをCO2に選択酸化した:
CO: 2.8モル%
プロピレン: 0.75モル%
アクロレイン: 0.75モル%
水: 20モル%
酸素: 3モル%
プロパン: 50モル%
CO>プロピレン>アクロレイン>プロパン
一酸化炭素の選択酸化用触媒の調整
触媒Aの調整
200のgの80ミクロンの直径を有する多孔質シリカ球に、10.2gのクエン酸と、20.2gのテトラアンミン白金(II)水素炭酸塩(50.6%の白金を含む)と、8gの鉄(III)硝酸九水和物と、103.5gの脱塩水とから成る溶液を初期湿分含浸法によって含浸した。撹拌下に穏やかに加熱して過剰な水を蒸発させ、凝集を防ぐために固形物を回転オーブン中で回転状態に維持する。最後に、粉末を105℃で乾燥し、空気中で500℃で2時間、か焼した。
触媒はSasol社のアルミナ(Puralox(登録商標)SCCA 5-150)に下記プロトコルに従って含浸して調製した:
Hg全細孔容積(cm3/g) 0.87
D50:粒子の50%個体群の見かけ平均径: 85μm
気孔率ピーク(nm): 9
流動床を使用すること以外、実施例2を繰り返した。
顆粒の形で得られる下記で定義する触媒C、D、Eを315ミクロン以下の粒径に粉砕した。得られた粉末の150gを篩に掛けて80〜160ミクロンのフ粒度のものを選別した。
触媒C:
N.E.Chemcat社のND−520触媒、3mmビーズの形をしたプラチナ/アルミナ、濃度=0.74kg/l
触媒D:
N.E.Chemcat社のDASH 220の触媒、3.2mm顆粒形の0.5%プラチナ/アルミナ、比表面積=100のm2/g
触媒E:
N.E.Chemcat社のND103触媒、3mmの直径を有するビーズ形をした0.5%Pd/アルミナ、比表面積=250m2/g
触媒の調整
下記触媒を用いて3系列のテストを実行した:
(1)0.5pt触媒(0.5%Pt、0.5%Fe/アルミナAl2O3上に対応)、嵩密度=0.78グラム/ミリリットル、平均粒径=114、
(2)1.5pt触媒(1.5%Pt、1.5%Fe/アルミナAl2O3上に対応)、嵩密度=0.79g/ml、
(3)2Pd触媒(Engelhard/BASFの2%Pd/ゼオライト上、D/URに対応)、嵩密度=0.55グラム/ミリリットル、平均粒径=144。
実施例6の触媒を用いた流動化マイクロリアクターでのテスト
内径が7mmの石英管から成るマイクロリアクターの分配板の役目をする管中央に配置した焼結ガラス(20μm)上に1gの触媒を入れてテストした。組立体全体をコンピュータ制御し、関連する全ての実験パラメータ、温度、ガス流量を記録した。
流動層反応装置でのテスト
300gまでの触媒量でのテストは大型の流動床で可能である。金属製の反応装置を2つのセクションすなわち反応セクション(直径3.5cm、高さ60cm)と取り出しセクション(直径4.5cm、高さ40cm)に分割する。ガスは流量調整弁を介して供給し、流量を調整する。それによってプラントの最大容積流速を4リットル/分にすることができる。外部砂浴を用いて温度を制御し、反応装置の温度の均一性を良好にすることができる。温度を測定するための4つの位置を反応装置内に定めた(触媒ベッド中に2箇所、取出しセクションに2箇所)。また、反応装置を所望圧力まで上げるために、出口ライン上に弁を設けることができる。一定量のアクロレイン水溶液を触媒ベッドにHPLCタイプのポンプで直接導入する。
Claims (13)
- 少なくとも一種の炭化水素または不飽和炭化水素の部分酸化の生成物または不飽和炭化水素への酸素およびハロゲン化合物の付加生成物の中から選択される一種の炭化水素誘導体を含むガス混合物を一酸化炭素を二酸化炭素へ酸化させることができる固体の触媒と所定温度で接触させる段階を含む、上記ガス混合物中に存在する一酸化炭素を選択酸化する方法であって、上記段階を流動床で実行することを特徴とする方法。
- 上記炭化水素を2〜6の炭素原子を有する飽和またはモノ−またはジ不飽和の直鎖または分岐した炭化水素または6〜12の炭素原子を有する芳香族炭化水素の中から選択する請求項1に記載の方法。
- 上記の炭化水素誘導体を無水フタル酸、無水マレイン酸、アクロレイン、メタアクロレイン、アクリル酸、タアクリル酸、アクリロニトリルまたはメタクリロニトリルまたはアトロポニトリル(atroponitril)またはこれらの混合物、エチレンオキシド、プロピレンオキシドまたは、1,2−ジクロロエタンの中から選択する請求項1または2に記載の方法。
- 上記触媒が、粒径が20〜1000ミクロンの固体粒子の形をしている請求項1〜3のいずれか一項に記載の方法。
- 上記触媒が無機担体上に担持された貴金属をベースにした触媒または銅、マンガン、コバルト、ニッケルまたは鉄をベースにした触媒の中から選択される請求項1〜4のいずれか一項に記載の方法。
- 上記流動床の温度が上記炭化水素および/または炭化水素誘導体の酸化反応の開始に対応する温度以下である請求項1〜5のいずれか一項に記載の方法。
- 触媒の容積に対する1時間当たりのガス混合物の容積流速として表される空間速度SVが1000h-1〜30000h-1との間にある請求項1〜6のいずれか一項に記載の方法。
- 酸素の存在下で気相で炭化水素を選択酸化して炭化水素誘導体を製造する方法において、
上記炭化水素誘導体は少なくとも一種の炭化水素または不飽和炭化水素の部分酸化の生成物または不飽和炭化水素への酸素およびハロゲン化合物の付加生成物の中から選択され、
上記炭化水素誘導体を含むガス混合物中に存在する一酸化炭素を、一酸化炭素を二酸化炭素へ酸化させる固体の触媒を含む流動床を用いて二酸化炭素へ所定温度で選択酸化する段階を有する、
ことを特徴とする炭化水素誘導体の製造方法。 - 少なくとも下記(a)〜(d)の段階を有する請求項8に記載の方法:
(a)少なくとも一種の炭化水素と、酸素または酸素含有ガスを触媒と接触させて、少なくとも一種の炭化水素誘導体と、未変換炭化水素と、酸素と、一酸化炭素とを含むガス混合物にし、
(b)段階(a)からの反応流から上記炭化水素誘導体を分離または抽出し、
(c)所定温度で一酸化炭素を二酸化炭素に酸化する固体触媒を含む流動床を使用して上記ガス混合物中に存在する一酸化炭素を二酸化炭素に変換して、一酸化炭素が減少したガス流を作り、
(d)上記の一酸化炭素が減少したガス流を段階(a)に再循環する。 - 段階(c)に入るまたはそこから出る流れの全部または一部を選択浸透装置で分離して、上記流れ中に存在する二酸化炭素の少なくとも一部を除去する請求項8または9に記載の方法。
- 反応条件下で不活性である熱バラストの存在下で段階(a)を実行する請求項9または10に記載の方法。
- 上記炭化水素がプロピレンで、上記炭化水素誘導体がアクリル酸である請求項8〜11のいずれか一項に記載の方法。
- 熱バラストとしてプロパンを使用する請求項が11または12に記載の方法。
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WO2016056851A1 (ko) * | 2014-10-07 | 2016-04-14 | 주식회사 엘지화학 | 프로판 부분산화반응에 의한 연속식 아크릴산 제조방법 및 제조장치 |
EP3178805B1 (en) | 2014-10-07 | 2021-09-29 | LG Chem, Ltd. | Method and apparatus for continuous manufacturing of acrylic acid through propane partial oxidation |
CN106542993A (zh) * | 2015-09-17 | 2017-03-29 | 中国科学院大连化学物理研究所 | 丙烷一步氧化制备丙烯酸的系统及方法 |
CN107935836B (zh) * | 2016-10-13 | 2021-01-22 | 中国科学院大连化学物理研究所 | Co选择性氧化脱除方法、丙烷一步氧化制备丙烯酸的方法及系统 |
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CN108212149A (zh) * | 2017-04-22 | 2018-06-29 | 天津大学 | 高分散型氧化钌催化剂及其制备方法和应用 |
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CN113318763B (zh) * | 2021-02-06 | 2022-05-17 | 南京工业大学 | 碳酸盐溶液制备负载型钯催化剂的方法 |
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