A system for vibrational loading is provided. The system includes: one or more pilot plant reactor tubes; at least one vibrator attached to and configured to impart vibrational energy to a corresponding at least one of the reactor tubes during the vibrational loading; and a portable reactor loading station. The loading station includes: a base structure; a plurality of rolling members attached to the base structure which is configured to contact and roll across a horizontal surface while remaining attached to the base structure and separate the base structure from the horizontal surface; a frame attached to and extending vertically from the base structure; and one or more clamps attached to the frame to secure the reactor tubes in a vertical orientation. The clamps are attached to the frame through corresponding elastomeric members vibrationally isolating the secured reactor tubes from the frame during the vibrational loading.

An apparatus for enhancing a yield and a transfer rate of a packed bed includes a packed bed, a vessel having a reaction chamber, a support frame and acoustic attenuator for holding the packed bed in the reaction chamber, at least one acoustic transducer adapted to transmit acoustic energy into the packed bed and an acoustic generator. The acoustic generator has impedance matching functionality.

A support structure for a structured catalytic packing is disclosed. The support structure is in a fixed position relative to the reactor tube containing it. It supports catalyzed casings that are free to move relative to the support structure. The support structure and casings are inserted in the reactor tube such that the support structure is located proximate the longitudinal axis of the tube and the casings are located between the support structure and the reactor tube wall. The support structure comprises a central support tube or rod proximate to, and impervious or perforated discs perpendicular to, the longitudinal axis of the reactor tube, and may comprise spacers separating the discs.

The present invention relates to a process for producing LPG and BTX from a mixed feedstream comprising C5-C12 hydrocarbons by contacting said feedstream in the presence of hydrogen with a first hydrocracking catalyst and contacting the thus obtained first hydrocracked product in the presence of hydrogen with a second hydrocracking catalyst to produce a second hydrocracked product stream comprising LPG and BTX.

Fluid mixing and distribution device for a downflow catalytic reactor, the said device comprising a mixing zone comprising at least one fluid-mixing space of length L1′ and a fluid-exchange space of length L2′, situated underneath and superposed with said mixing space, it being understood that the length L2′ of the said exchange space is strictly greater than the length L1′ of the said mixing space so as to create a roof at the level of the said exchange space, the said roof comprising at least one longitudinal opening suited to the passage of the following its from the said exchange space to the said distribution zone.

A naphtha hydrotreating process containing a first step in the presence of the first catalyst containing a support; a second step in the presence of the second catalyst containing a support and an active phase, which active phase contains a Group 9 or 10 metal and a Group 6 metal; a third step in the presence of the third catalyst containing a support and an active phase, which active phase contains a Group 6 metal; wherein the content of Group 6 metal of the third catalyst is less than the content of Group 6 metal of the second catalyst; the ratio of the loaded specific surface area of the first catalyst to that of the second catalyst is greater than or equal to 1.20; the ratio of the loaded specific surface area of the third catalyst to that of the second catalyst is greater than 1.07.

A pilot plant for chemical looping hydrogen generation using a single-column packed bed and hydrogen generation method. The plant has a feeding system, reaction system, tail gas treatment and analysis system, and auxiliary system. The reaction system has a packed bed reactor, inside which a thermal storage layer, oxygen carrier layer and supporting layer are arranged successively from top to bottom. The feeding system has a delivery pipe, metering pump, mass flow controller and fuel mixer. The tail gas treatment and analysis system has a cooler, gas-liquid separator, mass flow meter, gas analyzer and tail gas pipe. The packed bed reactor is subjected to fuel reduction, purge, steam oxidation, purge, air combustion and purge stages successively under control of the feeding system. The pilot plant enables evaluation for oxygen carriers and identification for technological difficulties and can generate high-purity hydrogen without using complex gas purification devices.

A reactor for accommodating high contaminant feedstocks includes a reactor vessel having an inlet for introducing a feedstock containing contaminants into an interior of the reactor vessel. A basket is located within the reactor vessel interior and contains a particulate material for removing contaminants from the feedstock to form a purified feedstock that is discharged to a purified feedstock outlet. A catalyst is located within the reactor vessel and in fluid communication with the purified feedstock outlet of the basket for contacting the purified feedstock to form a desired product.

A method for facilitating the distribution of the flow of one or more streams within a bed vessel is provided. Disposed within the bed vessel are internal materials and structures including multiple operating zones. One type of operating zone can be a processing zone composed of one or more beds of solid processing material. Another type of operating zone can be a treating zone. Treating zones can facilitate the distribution of the one or more streams fed to processing zones. The distribution can facilitate contact between the feed streams and the processing materials contained in the processing zones.

The present invention relates to multi-bed catalytic reactor with a cylindrical shape comprising a mixing device mounted between two catalyst beds in the reactor, said mixing device has a circular outer rim which corresponds to the inner wall of the reactor, the mixing device comprises; collecting means disposed in a collecting section for collecting fluid from an upstream catalytic bed, mixing means disposed in a mixing section for mixing the collected fluid comprising guide vanes and guide ramps, and discharging means disposed in a discharging section for discharging the mixed fluid to a down-stream catalytic bed; wherein the collecting section, the mixing section and the discharging section are disposed outside the center of the circular cross-section of the reactor, as well as associated methods for mixing and the use of such a mixing device in catalytic reactors.