JP7169779B2 - 少なくとも1種のマラカイト粉体と酸化物粉体との混合物から固体を調製する方法および前記固体の使用 - Google Patents
少なくとも1種のマラカイト粉体と酸化物粉体との混合物から固体を調製する方法および前記固体の使用 Download PDFInfo
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- JP7169779B2 JP7169779B2 JP2018109897A JP2018109897A JP7169779B2 JP 7169779 B2 JP7169779 B2 JP 7169779B2 JP 2018109897 A JP2018109897 A JP 2018109897A JP 2018109897 A JP2018109897 A JP 2018109897A JP 7169779 B2 JP7169779 B2 JP 7169779B2
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- malachite
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Images
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Description
本発明は、固体の調製方法であって、以下の工程:
a) 少なくとも1種のCu2(OH)2CO3粉体、銅、亜鉛、鉄、マンガンおよびそれらの混合物からなる金属の群から選択される1種の金属酸化物粉体、および少なくとも1種のバインダを含む一式の化合物を混合する工程;
b) 工程a)の混合物を水溶液と接触させ、これにより得られたペースト状物を混錬する工程;
c) 工程b)において混錬されたペースト状物を、3~25MPaの圧力で押し出す工程;
d) 酸素を含むガス流下に10分~6時間の継続期間にわたって140℃~500℃の温度で押出物を焼成する工程
を含む、方法に関する。
以降の説明において、用語「本発明により調製された固体」は、限定なく、前記固体の用途に応じて吸着剤並びに触媒または捕捉塊を意味するとしても理解される。
本発明によると、本調製方法は、少なくとも1種のCu2(OH)2CO3粉体、銅、亜鉛、鉄、マンガンおよびそれらの混合物からなる金属の群から選択される1種の金属酸化物粉体、および少なくとも1種のバインダを含む一式の化合物を混合する工程a)を含む。
Cu2(OH)2CO3粉体は、当業者に知られているあらゆる供給源に由来する。中位径(D50)は、有利には1~100μm、好ましくは4~80μm、好ましくは4~50μmである。特定の配置において、前記一式の化合物は、1種のマラカイト粉体のみを含み、その中位径は、1~100μm、好ましくは4~80μm、好ましくは4~50μmである。
CuOは、当業者に知られているあらゆる供給源に由来してよい。それは、有利には、沈殿法またはCuO前駆体、例えば、式Cu2(OH)2CO3を有するマラカイトの焼成に由来する。
ZnO粉体は、有利には、当業者に知られているあらゆる供給源に由来し、例えば、酸化亜鉛を製造するための2つの主要な工業的方法が、フレンチ法として知られている間接的方法およびアメリカン法として知られている直接法として当業者に知られており、例えば、FR 2940967に記載されている。
酸化鉄粉体および酸化マグネシウム粉体は、当業者に知られているあらゆる供給源に由来する。
工程a)において混合される一式の化合物は、少なくとも1種のバインダを含む。前記バインダにより、良好な機械的強度を提供しながら前記吸着剤を形成することが可能となる。前記バインダは、有利には、粉体の形態である。
本発明によると、吸着剤の調製方法は、工程a)の混合物を水溶液と接触させ、得られたベースト状物を混錬する工程b)を含む。
本発明によると、吸着剤の調製方法は、工程b)において混錬されたペースト状物を、3~25MPaの圧力で押し出す工程c)を含む。
本発明によると、吸着剤の調製方法は、140℃~500℃の温度で、10分~6時間の継続期間にわたって、酸素を含むガス流下に押出物を焼成する工程d)を含む。
・ 50~99重量%、好ましくは60~95重量%、より好ましくは75~85重量%の質量相当のCuO酸化物+場合により存在する金属元素の酸化物;550℃での2時間にわたる強熱減量の後に測定され、含有率は、前述の式により決定される;
・ 1~50重量%、好ましくは5~40重量%、より好ましくは15~25重量%のバインダ;質量百分率は、強熱減量の後に測定される。
機械的特性は、ASTM D 6175-3法によって記載されている粒子ごとの破砕試験(EGG)によって決定される。これは、少なくとも50個の粒子を含む代表的サンプルの各粒子の破壊強度を測定することからなる。結果は、押出物の長さによって荷重される。EGG値は、サンプル粒子の全てについての測定されかつ押出物の単位長さに縮小された破壊強度(daN・mm-1で表される)の平均である。
図1は、下記の固体による不純物捕捉容量を測定する手順により得られ得る破過曲線の略図である。図1において、tpは、破過時間であり、tfは、破過時間の終わりである。
(調製された固体による不純物捕捉容量を測定する手順)
本発明による方法によって調製された固体の不純物捕捉容量は、破過試験を用いて測定される。
qi:固体によって捕捉された種iの質量(g)である、
Di E:種iの流入量(mol・分-1)である、
Mi:種iのモル質量(g・mol-1)である、
Ci E:流入ガスの種iの含有率である、
Ci S:反応器出口における種iの含有率である、
tp:図1に示されるような種iの破過に必要とされる時間(分)である。
実施例1において、参照固体A1、A2、A3、A4およびA5は、以下の加工方法:
a) Cu2(OH)2CO3粉体およびバインダを含む一式の化合物を混合する工程;
b) 工程a)の混合物を水溶液と接触させ(解膠)、それにより得られたペースト状物を、Z-アーム混合器において30分にわたり25回転・分-1のアーム回転スピードで混錬する工程;
c) 工程b)において混錬されたペースト状物を、ピストン押出機によって、3mmの径および5~10mmの長さに、固体に応じた可変圧力で押し出す工程;
d) 固体に応じた可変温度で押出物を焼成する工程であって、1時間にわたって、空気流下に行われる、工程
により調製される。
実施例2において、本発明に合致するB1~B4として参照される固体は、以下の手順:
a) Cu2(OH)2CO3粉体、CuO粉体、およびバインダを含む一式の化合物を混合する工程;
b) 工程a)の混合物を水溶液と接触させ(解膠)、こうして得られたペースト状物を、Z-アーム混合器において30分にわたり、25回転・分-1のアーム回転スピードで混錬する工程;
c) 工程b)において混錬されたペースト状物を、ピストン押出機により、3mmの径および5~10mmの長さに、固体に応じた可変の圧力で押し出す工程;
d) 実施例に応じた可変温度で押出物を焼成する工程であって、1時間にわたって空気流下に行われる、工程
による混錬および押出の工程によって調製される。
実施例3において、本発明に合致するC1およびC2として参照される固体は、以下の手順:
a) Cu2(OH)2CO3粉体、ZnO粉体、およびバインダを含む一式の化合物を混合する工程;
b) 工程のa)の混合物を水溶液と接触させ(解膠)、このようにして得られたペースト状物を、Zアーム混合器において30分にわたって25回転・分-1のアーム回転スピードにより混錬する工程;
c) 工程b)において混錬されたペースト状物を、ピストン押出機により、3mmの径および5~10mmの長さに、固体に応じた可変圧力で押し出す工程;
d) 実施例に応じた可変温度で押出物を焼成する工程であって、1時間にわたって空気流下に行われる工程
による混錬および押出の工程によって調製される。
実施例4は、本発明に合致する固体B3の捕捉性能を示す。固体B3の調製は実施例2において記載されている。
Claims (12)
- 固体の調製方法であって、以下の工程:
a) 少なくとも1種のマラカイトCu2(OH)2CO3粉体、銅、亜鉛、鉄、マンガンおよびそれらの混合物からなる金属の群から選択される1種の金属酸化物粉体、および少なくとも1種のバインダを含む一式の化合物を混合する工程であって、前記金属酸化物粉体の含有率は、金属酸化物の質量対工程a)において混合された一式の化合物に導入されるマラカイトCu 2 (OH) 2 CO 3 粉体および金属酸化物粉体の全質量の比として表されて、0.05~0.7である、工程;
b) 工程a)の混合物を水溶液と接触させ、これにより得られたペースト状物を混錬する工程;
c) 工程b)において混錬されたペースト状物を、3~25MPaの圧力で押し出す工程;
d) 140℃~500℃の温度で10分~6時間の継続期間にわたって、酸素を含むガス流下に押出物を焼成する工程
を含む、方法。 - 工程d)において焼成する前に、工程c)から得られた押出物を、70~160℃の温度で1~24時間の継続期間にわたって乾燥させる、請求項1に記載の方法。
- 前記金属酸化物の粉体の含有率は、工程a)において混合される一式の化合物に導入される金属酸化物の粉体の質量対工程a)おいてに混合される一式の化合物に導入されるマラカイトCu 2 (OH) 2 CO 3 粉体および金属酸化物粉体の全質量の比として表されて、0.1~0.6である、請求項1または2に記載の方法。
- 前記マラカイトCu2(OH)2CO3粉体は、二峰性分布を有する、請求項1~3のいずれか1つに記載の方法。
- 前記マラカイトCu2(OH)2CO3粉体は、0.1~99.9重量%の、そのD50が1~15μmである、マラカイト粒子と、99.9~0.1重量%の、そのD50が25~100μmであるマラカイト粒子とを含み、重量百分率は、前記マラカイトCu 2 (OH) 2 CO 3 粉体の全重量に対して表される、請求項1~4のいずれか1つに記載の方法。
- 前記工程a)の一式の化合物中に含まれる前記金属酸化物は、酸化銅であり、前記一式の化合物は、酸化亜鉛を含まない、請求項1~5のいずれか1つに記載の方法。
- 前記工程a)の一式の化合物中に含まれる前記金属酸化物は酸化亜鉛であり、前記一式の化合物は、酸化銅を含まない、請求項1~5のいずれか1つに記載の方法。
- 前記工程b)の前記水溶液は、酸性または塩基性の解膠剤を含有する、請求項1~7のいずれか1つに記載の方法。
- 前記水溶液は、硝酸を含有し、HNO3の質量対前記金属酸化物粉体の質量の比は、0.5~10重量%である、請求項8に記載の方法。
- 前記塩基性解膠剤は、水酸化ナトリウム、水酸化カリウム、アンモニア水、テトラエチルアンモニウムヒドロキシド(TEAOH)、炭酸アンモニウムおよびそれらの混合物からなる群から選択され、塩基性解膠剤の質量対前記金属酸化物粉体の質量の比は、1~10重量%である、請求項8に記載の方法。
- 前記工程b)の水溶液は、脱イオン水である、請求項1~7のいずれか1つに記載の方法。
- 焼成の工程d)を、200℃~500℃の温度で行う、請求項1~11のいずれか1つに記載の方法。
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JP2010500920A (ja) | 2006-08-17 | 2010-01-14 | ジョンソン、マッセイ、パブリック、リミテッド、カンパニー | 水銀の除去 |
US20120000855A1 (en) | 2009-01-12 | 2012-01-05 | IFP Energies Nouvelles | Preparation of a solid based on zinc oxide for use in purifying a gas or a liquid |
JP2014521497A (ja) | 2011-07-22 | 2014-08-28 | ジョンソン、マッセイ、パブリック、リミテッド、カンパニー | 酸化亜鉛上に支持された銅を含む脱硫材 |
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FR2352588A1 (fr) * | 1976-05-28 | 1977-12-23 | Catalyse Soc Prod Francais | Catalyseur renfermant de l'oxyde de cuivre et de l'oxyde de zinc, sa preparation et son utilisation dans les reactions de conversion de l'oxyde de carbone |
US4582819A (en) * | 1984-12-11 | 1986-04-15 | Union Oil Company Of California | Catalytic absorbent and a method for its preparation |
GB8610196D0 (en) * | 1986-04-25 | 1986-05-29 | Ici Plc | Sulphur compounds removal |
JPH074506B2 (ja) * | 1987-06-01 | 1995-01-25 | 日本パイオニクス株式会社 | 排ガスの浄化方法 |
GB9405269D0 (en) * | 1994-03-17 | 1994-04-27 | Ici Plc | Absorbents |
GB0201015D0 (en) * | 2002-01-17 | 2002-03-06 | Ici Plc | Hydrocarbon treating |
GB0916161D0 (en) * | 2009-09-15 | 2009-10-28 | Johnson Matthey Plc | Desulphurisation process |
CN106423175A (zh) * | 2016-11-02 | 2017-02-22 | 复旦大学 | 一种制备催化二氧化碳加氢还原的铜基催化剂的方法 |
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JP2003164756A (ja) | 2001-11-30 | 2003-06-10 | Nippon Shokubai Co Ltd | 窒素酸化物および/または硫黄酸化物の吸着剤 |
JP2010500920A (ja) | 2006-08-17 | 2010-01-14 | ジョンソン、マッセイ、パブリック、リミテッド、カンパニー | 水銀の除去 |
US20120000855A1 (en) | 2009-01-12 | 2012-01-05 | IFP Energies Nouvelles | Preparation of a solid based on zinc oxide for use in purifying a gas or a liquid |
JP2014521497A (ja) | 2011-07-22 | 2014-08-28 | ジョンソン、マッセイ、パブリック、リミテッド、カンパニー | 酸化亜鉛上に支持された銅を含む脱硫材 |
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CN109078605B (zh) | 2023-08-22 |
JP2019001702A (ja) | 2019-01-10 |
EP3415232A1 (fr) | 2018-12-19 |
CN109078605A (zh) | 2018-12-25 |
CN116618004A (zh) | 2023-08-22 |
US20180353929A1 (en) | 2018-12-13 |
FR3067265A1 (fr) | 2018-12-14 |
FR3067265B1 (fr) | 2019-07-26 |
US11241667B2 (en) | 2022-02-08 |
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