Patent ID: 6497844
Filing Date: 2002-12-24
Classification: G01N

Abstract:
Equipment for pretreatment of a catalyst and/or for catalyst testing that makes it possible to draw up the material balance of a chemical reaction in the presence of very small amounts of solid catalyst under operating conditions of industrial use which comprises:a reactor (16), capable of containing a catalyst at least one system for injecting into said reactor at least one fluid comprising liquid or liquid mixture (4), optionally at least one system for injecting at least one gas or reactive gas mixture (2), and optionally at least one gas or gas mixture (1) that is necessary for the pretreatment of the catalyst, via a switching valve (13), intermediate between said at least one system and the reactor, means for regulating and/or measuring the flow rate and composition of said liquid or liquid mixture, and said gas and/or gas mixture (8), downstream of the latter means, at least one means associated with the reactor for heating (15) said liquid or liquid mixture and/or said gas or mixture or mixture of gas and said liquid, at least one means for separation (23) of liquid and gaseous effluents withdrawn from the reactor after or at the same time as their condensation, if condensation is required, which allows for discontinuous sampling in which the liquid level and the sampling of gaseous and liquid effluents are managed by at least one valve (25) downstream of said at least one means for separation (23), downstream of the reactor, a switching valve (18) connecting the reactor (16) to said means for separation (23) and a reservoir (31), and at least one means to provide a regulation sequence that alternately ensures the accumulation and sampling of the liquid phase comprising: said separator (23) for accumulating the liquid phase, and at least one collector of samples of liquid effluents (28) and means for discontinuously transferring the liquid phase from said separator (23) to said at least one collector of samples of liquid effluent (28), or optionally to said reservoir (31), said means for discontinuously transferring comprising said at least one valve (25), at least one collector of samples of gaseous effluents (36), that comprise or are associated with means for measuring the volumes of liquid and gas that are collected, at least one pressure regulation means, (33) directly coupled with said reservoir (31).