摘要:
The invention relates to a device (11) for the prevention of liquid overflow from an outside installation comprising a storage tank (10) for said liquid and a liquid retaining means (12) arranged around said tank, said device comprising a plate element (111, 112, 113) to be arranged between the tank and the retaining means, said plate element defining an impact surface (131, 132, 133) hit by the liquid overflowing onto said plate in the event of a rupture of the tank and openings distributed over said surface and through said plate element in order to reduce the kinetic energy of the liquid.
摘要:
The present invention pertains to novel core-shell particles comprising a core of iron oxide and a shell of cobalt oxide, characterized in that they are spherical with a number average diameter, as measured by TEM, of between 1 and 20 nm. This invention is also directed to their uses in the manufacture of a catalyst, and to the method for preparing these particles, by precipitating cobalt oxide onto magnetite or hematite particles which are themselves precipitated from Fe(III) and optionally Fe(II) salts.
摘要:
The present invention concerns a process for the treatment of a feed comprising biomass, said process comprising at least the following steps: a) a step for drying said feed at a temperature in the range 20° C. to 180° C. for a period in the range 5 to 180 minutes, b) a step for torrefaction of the dried feed obtained from step a) in order to produce at least one solid torrefied biomass effluent, and c) a step for co-grinding the solid torrefied biomass effluent obtained from step b) in the presence of a second biomass feed in order to obtain a powder.
摘要:
The invention relates to an injection device (10) for atomizing a liquid into droplets using a gas, comprising a hollow tubular body (12) having a longitudinal direction (X). An inner wall (13) defines a first region, referred to as contact region (Z1), and a second region (Z2). The body includes: —at least two inlet ports (14; 16) for injecting liquid and an inlet port for injecting gas, all of said ports extending to the first region (Z1); —at least one outlet port (18), located downstream of the first and second regions, for discharging the atomized liquid. The body (12) has an inner cross-section that varies continuously or constantly over the entire length thereof. Between regions (Z1) and (Z2), the inner wall (13) includes at least one baffle (261) which is shaped such that in each plane running perpendicularly to the longitudinal direction of the body containing said baffle, the baffle reduces an inner cross-section of the body over the entire periphery of the inner wall (13).
摘要:
Process for the treatment of a feedstock containing biomass, the process including a) drying the feedstock at a temperature between 20 and 180° C. for a duration between 5 and 180 minutes, b) torrefaction of the feedstock originating from step a) in order to produce at least one torrefied biomass solid effluent, c) co-grinding the torrefied biomass solid effluent originating from step b), in the presence of at least one solid fossil feedstock in order to obtain a powder.
摘要:
The present invention is a process for recovering an isoprenoid compound produced by fermentation from a fermentation medium comprising: (a) demulsifying the fermentation medium or a fraction thereof in presence of a salt and a surfactant, thereby generating a stream having an organic phase containing the isoprenoid compound and a phase heavier than the organic phase, and (b) separating the stream obtained in step (a) into the organic phase containing the isoprenoid compound, the phase heavier than the organic phase, and optionally a solid phase containing host cell debris and cells.
摘要:
A cylindrical wall for filtering solid particles in a fluid is disclosed herein, through which a fluid is likely to circulate. This wall includes at least one perforated plate having a finite radius of curvature, and at least one grating element superposed on this perforated plate. The grating element includes a plurality of rigid wires extending in a longitudinal direction and positioned adjacent to one another in order to filter the solid particles, characterized in that the grating element is arranged for the wires to be secured to one another only by means of links between adjacent wires, each link between two adjacent wires occupying only a portion of the length of the wires, and having a thickness less than or equal to the thickness of these wires in proximity to this link.
摘要:
The invention relates to a metal anchoring mesh intended to be secured to a metal wall of a chamber of a fluid catalytic cracking unit, in order to form cells (64). Said metal anchoring mesh comprises a plurality of wavy elementary parts (12, 14) connected successively together, forming cylindrical surfaces that are able to respectively define said cells, said cylindrical surfaces each having a central axis of symmetry A, the wavy elementary parts (12, 14) each having protruding tongues (42′, 44′), said protruding tongues being able to extend respectively inside said cells (64). Said tongues (42′, 44′) extend along a length less than a quarter of the distance d that extends between said cylindrical surface and said central axis of symmetry A of said cylindrical surface.
摘要:
The present invention is a process for recovering an isoprenoid compound produced by fermentation from a fermentation medium comprising: (a) demulsifying the fermentation medium or a fraction thereof in presence of a salt and a surfactant, thereby generating a stream having an organic phase containing the isoprenoid compound and a phase heavier than the organic phase, and (b) separating the stream obtained in step (a) into the organic phase containing the isoprenoid compound, the phase heavier than the organic phase, and optionally a solid phase containing host cell debris and cells.