Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
METHOD FOR PRODUCING TRANSITION ALUMINA CATALYST MONOLITHS
A method for producing a three-dimensional porous transition alumina catalyst monolith of stacked catalyst fibers, comprising the following steps: a)Preparing a suspension paste in a liquid diluent ofhydroxide precursor particles or oxyhydroxide precursor particles of transition alumina particles or mixtures thereof and which suspension can furthermore comprise a binder material in a maximum amount of 20 wt%, based on the amount of hydroxide precursor particles or oxyhydroxide precursor particles of transition alumina particles or mixtures thereof and/or a plasticizer and/or a dopant in a maximum amount of 10 wt%, based on the amount of hydroxide precursor particles or oxyhydroxide precursor particles of transition alumina particles or mixtures thereof, all particles in the suspension having a number average particle size in the range of from 0.05 to 700 [mu]m, b)extruding the paste of step a) through one or more nozzles to form fibers, and deposit- ing the extruded fibers to form a three-dimensional porous catalyst monolith precursor, c)drying the porous catalyst monolith precursor to remove the liquid diluent, d)performing a temperature treatment of the dried porous catalyst monolith precursor of step c) at a temperature in the range of from 500 to 1000 DEG C, to form the transition alumina catalyst monolith, wherein no temperature treatment of the porous catalyst monolith precursor or porous catalyst monolith at temperatures above 1000 DEG C is performed and wherein no further catalytically active metals, metal oxides or metal compounds are applied to the surface of thetransition alumina precursor particles, the catalyst monolith precursor or transition alumina catalyst monolith.no further catalytically active metals, metal oxides or metal compounds are present inthe suspension paste.
一种生产堆叠催化剂纤维的三维多孔过渡型氧化铝催化剂整料的方法，其包括下列步骤：a)制备过渡型氧化铝粒子的氢氧化物前体粒子或羟基氧化物前体粒子或其混合物在液体稀释剂中的悬浮体糊料，且所述悬浮体还可包含基于过渡型氧化铝粒子的氢氧化物前体粒子或羟基氧化物前体粒子或其混合物的量计最多20重量％的粘结剂材料，和/或基于过渡型氧化铝粒子的氢氧化物前体粒子或羟基氧化物前体粒子或其混合物的量计最多10重量％的增塑剂和/或掺杂剂，所述悬浮体中的所有粒子具有0.05至700μm的数均粒度，b)经由一个或多个喷嘴挤出步骤a)的糊料以形成纤维，并沉积挤出的纤维以形成三维多孔催化剂整料前体，c)干燥所述多孔催化剂整料前体以除去液体稀释剂，d)在500至1000℃的温度下进行步骤c)的干燥多孔催化剂整料前体的温度处理，以形成过渡型氧化铝催化剂整料，其中没有进行在高于1000℃的温度下对所述多孔催化剂整料前体或多孔催化剂整料的温度处理，并且其中没有将其它催化活性金属、金属氧化物或金属化合物施加到过渡型氧化铝前体粒子、催化剂整料前体或过渡型氧化铝催化剂整料的表面上，在悬浮体糊料中不存在其它催化活性金属、金属氧化物或金属化合物。
METHOD FOR PRODUCING TRANSITION ALUMINA CATALYST MONOLITHS
A method for producing a three-dimensional porous transition alumina catalyst monolith of stacked catalyst fibers, comprising the following steps: a)Preparing a suspension paste in a liquid diluent ofhydroxide precursor particles or oxyhydroxide precursor particles of transition alumina particles or mixtures thereof and which suspension can furthermore comprise a binder material in a maximum amount of 20 wt%, based on the amount of hydroxide precursor particles or oxyhydroxide precursor particles of transition alumina particles or mixtures thereof and/or a plasticizer and/or a dopant in a maximum amount of 10 wt%, based on the amount of hydroxide precursor particles or oxyhydroxide precursor particles of transition alumina particles or mixtures thereof, all particles in the suspension having a number average particle size in the range of from 0.05 to 700 [mu]m, b)extruding the paste of step a) through one or more nozzles to form fibers, and deposit- ing the extruded fibers to form a three-dimensional porous catalyst monolith precursor, c)drying the porous catalyst monolith precursor to remove the liquid diluent, d)performing a temperature treatment of the dried porous catalyst monolith precursor of step c) at a temperature in the range of from 500 to 1000 DEG C, to form the transition alumina catalyst monolith, wherein no temperature treatment of the porous catalyst monolith precursor or porous catalyst monolith at temperatures above 1000 DEG C is performed and wherein no further catalytically active metals, metal oxides or metal compounds are applied to the surface of thetransition alumina precursor particles, the catalyst monolith precursor or transition alumina catalyst monolith.no further catalytically active metals, metal oxides or metal compounds are present inthe suspension paste.
一种生产堆叠催化剂纤维的三维多孔过渡型氧化铝催化剂整料的方法，其包括下列步骤：a)制备过渡型氧化铝粒子的氢氧化物前体粒子或羟基氧化物前体粒子或其混合物在液体稀释剂中的悬浮体糊料，且所述悬浮体还可包含基于过渡型氧化铝粒子的氢氧化物前体粒子或羟基氧化物前体粒子或其混合物的量计最多20重量％的粘结剂材料，和/或基于过渡型氧化铝粒子的氢氧化物前体粒子或羟基氧化物前体粒子或其混合物的量计最多10重量％的增塑剂和/或掺杂剂，所述悬浮体中的所有粒子具有0.05至700μm的数均粒度，b)经由一个或多个喷嘴挤出步骤a)的糊料以形成纤维，并沉积挤出的纤维以形成三维多孔催化剂整料前体，c)干燥所述多孔催化剂整料前体以除去液体稀释剂，d)在500至1000℃的温度下进行步骤c)的干燥多孔催化剂整料前体的温度处理，以形成过渡型氧化铝催化剂整料，其中没有进行在高于1000℃的温度下对所述多孔催化剂整料前体或多孔催化剂整料的温度处理，并且其中没有将其它催化活性金属、金属氧化物或金属化合物施加到过渡型氧化铝前体粒子、催化剂整料前体或过渡型氧化铝催化剂整料的表面上，在悬浮体糊料中不存在其它催化活性金属、金属氧化物或金属化合物。
METHOD FOR PRODUCING TRANSITION ALUMINA CATALYST MONOLITHS
生产过渡型氧化铝催化剂整料的方法
SCHWAB MATTHIAS (Autor:in) / GROENEVELD ESTHER (Autor:in) / BERBEN PETER (Autor:in) / BOUWMAN HARRY (Autor:in) / DIJKSTRA WILLEM (Autor:in) / MICHIELSEN BART (Autor:in) / LEFEVERE JASPER (Autor:in)
01.01.2021
Patent
Elektronische Ressource
Chinesisch
IPC:
B01J
Chemische oder physikalische Verfahren, z.B. Katalyse oder Kolloidchemie
,
CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY
/
B29C
Formen oder Verbinden von Kunststoffen
,
SHAPING OR JOINING OF PLASTICS
/
B33Y
ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
,
Additive (generative) Fertigung, d. h. die Herstellung von dreidimensionalen [3D] Bauteilen durch additive Abscheidung, additive Agglomeration oder additive Schichtung, z. B. durch 3D- Drucken, Stereolithografie oder selektives Lasersintern
/
C04B
Kalk
,
LIME
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