Manufacturing of raw materials for the catalyst industry

Diblitz, K.; Feldbaum, Tilo; Ludemann, Thomas

doi:10.1016/s0167-2991(98)80336-4

Cited by 8 publications

(2 citation statements)

References 4 publications

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“…This might be explained by enduring problems associated with the stability of the catalysts, the exothermic character of the synthesis, and the moderate selectivity of the synthesis resulting in a broader product range (e.g., linear vs branched alcohol issue, oligomerization, etc.). As far as yields and control of the selectivity are concerned, the former ALFOL-synthesis involving organo-aluminum reagents and ethylene to yield fatty alcohols and the synthesis of branched long chain alcohols via Guerbet condensation over solid-base catalysts − have been industrially better implemented.…”

Section: Catalytic Chemical Route From Synthesis Gas To C4 Moleculesmentioning

confidence: 99%

The Complex Way to Sustainability: Petroleum-Based Processes versus Biosynthetic Pathways in the Formation of C4 Chemicals from Syngas

Stoll

Boukis

Neumann

et al. 2019

Ind. Eng. Chem. Res.

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The environmental impact of the increasing anthropogenic CO2 emissions and the depletion of essential resources, once subjects of concern only for a minority of specialists, are now in the focus of many institutions and are de facto top priorities in many agendas. The ensuing environmental regulations, improved safety requirements, and growing critical public view on the chemical industry are the main reasons for an intense search for alternative synthetic routes to commodity chemicals and specialty chemicals. The skillful utilization of waste biomass, an inexhaustible resource, is revealed to be an important tool for a balanced CO2 management and the way to promising feedstock for many chemical and biochemical syntheses. The scope of the present contribution is to outline the main differences between chemical and biotechnological synthesis routes starting from waste biomass, focusing on C4-chemicals as an exemplary case study.

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Section: Catalytic Chemical Route From Synthesis Gas To C4 Moleculesmentioning

confidence: 99%

The Complex Way to Sustainability: Petroleum-Based Processes versus Biosynthetic Pathways in the Formation of C4 Chemicals from Syngas

Stoll

Boukis

Neumann

et al. 2019

Ind. Eng. Chem. Res.

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“…From the earliest days of industrial catalysis, boehmites have been used as a support for the production of heterogeneous catalysts and as precursor materials for the synthesis of alumina in various industries [1][2][3][4][5] . Like other nano particulate oxyhydroxides, various factors such as pH, temperature and time influence the morphology of the final boehmite.…”

Section: Introductionmentioning

confidence: 99%

Investigating the crystallite morphologies and aggregation in boehmite powders: a combined analysis of two- and three-dimensional electron microscopy with x-ray diffraction

Rouchon,

Sudheer,

Ihiawakrim

et al. 2024

Sci. Tech. Energ. Transition

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Boehmite (AlOOH) is considered as an important precursor to γ-Al2O3 which when calcinated undergoes topotactic transformation to form the latter. Alumina has extensive applications in fields such as catalysis, abrasives, cosmetics among others. Boehmite falls under the category of hierarchical structures whose structural and textural properties are a result of its compositional and porous hierarchy. Although research has been carried out exquisitely to understand the complete representation of its structure, a true morphological model is an important key to understand and fully explain its transport properties during catalytic processes. 3D electron microscopy helps us to dive deeper into the different hierarchical entities of boehmite, bridging the gaps between the models and assumptions made using some more traditional characterization techniques. We present here deeper insight into the structural and morphological parameters of different commercial boehmites using 3D-TEM. Through the extraction of quantitative descriptors pertaining to hierarchical entities and subsequent comparison with bulk analyses, precise and comprehensive information regarding these microstructures can be obtained. The results of our study indicate that boehmite grades, which appear to be identical in terms of their grades, display discrepancies in the uniformity of particle sizes. Moreover, diverse platelet interactions result in varying types of pores in these grades. Furthermore, it has been observed that the interfacial interactions among various crystallographic planes exhibit variations across different specimens, thereby contributing to the distinctive compositions within the aggregates. The variation in aggregates of different boehmite grades is also reflected in the combination of four distinct quantified morphologies.

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Assessment of the Climate Change and Metal Depletion Impacts of a Cobalt Fischer–Tropsch Catalyst with Prospective Life Cycle Assessment

van den Oever,

Costa,

Messagie

2023

Environmental Science and Engineering

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Manufacturing of raw materials for the catalyst industry

Cited by 8 publications

References 4 publications

The Complex Way to Sustainability: Petroleum-Based Processes versus Biosynthetic Pathways in the Formation of C4 Chemicals from Syngas

The Complex Way to Sustainability: Petroleum-Based Processes versus Biosynthetic Pathways in the Formation of C4 Chemicals from Syngas

Investigating the crystallite morphologies and aggregation in boehmite powders: a combined analysis of two- and three-dimensional electron microscopy with x-ray diffraction

Assessment of the Climate Change and Metal Depletion Impacts of a Cobalt Fischer–Tropsch Catalyst with Prospective Life Cycle Assessment

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