摘要:
A cyclic metals deactivation system unit for the production of equilibrium catalyst materials including a cracker vessel configured for cracking and stripping a catalyst material; and a regenerator vessel in fluid communication with the cracker vessel, the regenerator vessel configured for regeneration and steam deactivation of the catalyst material.
摘要:
Procédé de chargement d'un catalyseur dans un réacteur (40) comprenant une boucle de séparation (21) comprenant les étapes suivantes : a) on remplit le réacteur (40) avec un solvant S1; b) on remplit la boucle de séparation (21) avec ledit solvant S1; c) on fait circuler ledit solvant S1 dans le réacteur de synthèse (40) et la boucle de séparation (21); d) on chauffe le réacteur (40) à une température inférieure ou égale à 100°C; e) on injecte en fond du réacteur (40) un gaz inerte; f) on mélange ledit catalyseur avec un solvant S2 dans une capacité (30) pour obtenir un mélange liquide/solide; g) on augmente la pression dans la capacité (30) puis on envoie le mélange liquide/solide vers le réacteur (40); h) on soutire ledit solvant S1 et/ou S2.
摘要:
The invention relates to a gas phase polymerisation process for the production of ethylene polymers in the presence of a catalyst composition based on a chromium compound, a titanium compound and a silica support material. The silica support material has a surface area (SA) between 685 m 2 /g and 800 m 2 /g, a pore volume (PV) between 1.65 and 1.85 cm 3 /g and an average particle size in the range between 25 and 35 micrometres.The catalyst composition is injected by a dry catalyst feeder into the polymerization reactor.
摘要:
A process and apparatus for heating catalyst is presented. Cooler catalyst is removed from a reactor and heated with a hot gas in a riser, heated in a heating tube or heated in a heating chamber. Heated catalyst is disengaged from the hot gas if necessary and returned to the reactor. The process and apparatus can be used for producing light olefins. The hot gas may be a flue gas from an FCC regenerator or a combustion gas from a heater.
摘要:
Die vorliegende Erfindung betrifft ein Verfahren zur Herstellung von Metallchlorid M x+ Cl x - , bei dem Metallcarbonat (1) als Feststoff mit einem Chlorierungsmittel (2) ausgewählt aus Chlor und Oxalylchlorid zu Metallchlorid M x+ Cl x - (1') umgesetzt wird, wobei das Metall M ausgewählt ist aus der Gruppe der Alkalimetalle, Erdalkalimetalle, AI und Zn, bevorzugt Li und Mg, besonders bevorzugt Li, und x der Wertigkeit des Metallkations entspricht, wobei als Edukt zusätzlich Metal M (3) zugesetzt wird. Die vorliegende Erfindung betrifft ebenfalls eine Vorrichtung (R) zur Durchführung des Verfahrens.
摘要:
The disclosed invention enables secured debug of an integrated circuit (300) which has a test operation mode and a secure mission operation mode. The integrated circuit has a processing unit (340), a test interface (312) through which the test operation mode is controllable, an on-chip memory (350) which is accessible in the test operation mode and in the secure mission operation mode, and one or more protected resources (360, 364, 370) which are inaccessible in the test operation mode. The processing unit is configured, in the test operation mode, to receive (401) an authenticated object (401) through the test interface, and store (401) the received authenticated object in the on-chip memory. The processing unit is moreover configured, upon reset into the secure mission operation mode, to execute a boot procedure (362) to determine (501) that the authenticated object is available in the on- chip memory, authenticate (502) the authenticated object, and-upon successful authentication -render (503a, 503b) the more protected resources accessible to a debug host (310) external to the integrated circuit.
摘要:
The invention relates to a thermosiphon esterifier design comprising a riser baffle in the vapor separator. Advantageously, the thermosiphon esterifier design can provide an economic benefit as compared with traditional thermosiphon esterifier designs. Methods of using the thermosiphon esterifier design in a system for the production of polyethylene terephthalate are also described.
摘要:
The invention relates to recycling steam at elevated temperature and/or pressure generated within a thermosiphon esterifier design comprising a riser baffle in the vapor separator. Advantageously, the thermosiphon esterifier design can provide steam that can be employed in various additional processes and can thus provide an overall energy savings in operating the thermosiphon esterifier. Methods of using the steam are also described.
摘要:
Improved systems and processes for storing resins are disclosed herein. These systems and processes are especially useful for reducing the tendency of resins to sinter. In polymerization processes, the improvements disclosed herein can reduce the tendency of resins to sinter while also allowing downstream operations to continue.
摘要:
Embodiments include a reactor and feed distribution assembly. The reactor and feed distribution assembly can include a reactor vessel, a gaseous feed conduit, a catalyst feed conduit, a catalyst feed conduit housing, and a catalyst backflow diverter.