Abstract:
Chemical production processes are provided that include exposing a reactant composition to a catalyst composition to form a product composition, with the reactant composition including a multihydric alcohol compound and the catalyst composition being effective to dehydrate at least a portion of the multihydric alcohol compound. Embodiments of the process provide that the reactant composition is exposed to the catalyst composition for less than about 0.25 seconds and/or that the catalyst is maintained at a temperature of from about 2800C to about 3200C. Processes utilizing a reactant composition including a multihydric alcohol compound and an inert compound are also provided.
Abstract:
Chemical production processes are provided that can include exposing a reactant composition to a catalyst composition to form a product composition. The reactant composition can include a multihydric alcohol compound and the product composition can include a carbonyl compound. The catalyst composition can include a metal effective to facilitate catalyst activation. Processes disclosed also include supplementing a dehydration catalyst with a promoter, and activating the supplemented catalyst in the presence of oxygen. Processes also include providing a supplemented dehydration catalyst to within a reactor, and exposing a multihydric alcohol compound to the dehydration catalyst, with the exposing forming coke within the reactor. Oxygen can be provided to the reactor to remove at least a portion of the coke.
Abstract:
Hydrogenolysis processes are provided that can include providing a hydrogenolysis reactor having a catalyst therein. The catalyst can be exposed to a reducing agent in the absence of polyhydric alcohol compound while maintaining a temperature of the catalyst above 290°C. Hydrogenolysis processes can also include providing a passivated catalyst to within a reactor and exposing the catalyst to a reducing atmosphere while maintaining the catalyst at a temperature less than 210°C. Hydrogenolysis catalyst preparation methods are provided that can include exposing the catalyst to a first reducing atmosphere while maintaining the catalyst at a first temperature to reduce at least a portion of the catalyst. The method can also include passivating at least the portion of the catalyst and depassivating the portion of the catalyst in the presence of a second reducing atmosphere while maintaining the portion of the catalyst at a second temperature less than the first temperature.
Abstract:
Chemical production processes are provided that can include exposing a reactant composition to a catalyst composition to form a product composition. Catalyst compositions are also provided that can include metal phosphate compositions, metal phosphorous compositions, and/or solid support compositions with the solid support compositions including one or more of F-AI2O3, ZrO2-CO2, SiO2-AI2O3- CO2, SiO2 AI2O3, Alundum, and Silica such as Ludox AS-30.
Abstract translation:提供化学生产方法,其可以包括将反应物组合物暴露于催化剂组合物以形成产物组合物。 还提供了催化剂组合物,其可以包括金属磷酸盐组合物,金属磷组合物和/或固体支持组合物,其中固体支持物组合物包括F-Al 2 O 3,ZrO 2 -CO 2,SiO 2 -Al 2 O 3 -CO 2,SiO 2 Al 2 O 3,Alundum中的一种或多种 ,和二氧化硅如Ludox AS-30。