A gas conversion apparatus (100) for converting a process gas to one or more other gases comprises: means (105) for introducing process gas into a liquid medium in a column (125); and an ultrasonic energy generator (140) arranged to generate ultrasonic energy, the apparatus (100) being configured to launch ultrasonic energy generated by the generator (140) into the liquid medium such that process gas is exposed to ultrasonic energy, the apparatus (100) being arranged to allow collection of process gas that has been exposed to ultrasonic energy. The apparatus (100) also preferably comprises a microbubble generator (120) to generate microbubbles of the process gas for exposure to the ultrasonic energy. The ultrasonic energy generator (140) may be configured to generate ultrasonic energy as a consequence of a flow of a drive gas therethrough.

The invention relates to a method for cleaning a phosgene-conducting apparatus by pressurization with ammonia gas to constant pressure. In this way, phosgene residues in the apparatus to be cleaned are decomposed effectively.

A catalytic reactor comprises a filter unit which extracts and collects particles from the fluid flow stream above the reactor internals, the filter unit comprises elements which are safely, easily and quickly handled without the need for tools.

The present invention provides a process for a production of light olefins and aromatics from cracked light naphtha by selective cracking. The present invention thus provides a process for up grading cracked olefinic naphtha to high value petrochemical feed stocks. This process is based on catalytic cracking in which the catalyst activity is optimized by depositing coke for production of light olefins and aromatics. The proposed process has high flexibility and can be operated either in maximizing olefins as reflected from the PIE ratio or in maximizing aromatics (BTX) at different modes of operation depending upon the product requirement.

An apparatus that may entirely be contained in a glovebox for the removal of at least one contaminant from an inert atmosphere. The apparatus includes a body, a media in the body for the removal of at least one of the contaminants from the inert atmosphere flowing through the media, a fan for causing the inert atmosphere to flow through the media and body, and a motor for driving the fan. The apparatus may be provided in combination with a glovebox. A method of purification of the inert atmosphere using such an apparatus is also provided.

Aspects of the invention provide a process for upgrading a hydrocarbon feed. The process includes providing a hydrocarbon feed and a utility fluid. Then selectively extracting from the feed at least a portion of particulates to produce a raffinate and an extract. Third hydroprocessing at least a portion of the raffinate.

Provided is a process for producing satisfactory particles held in porous silica. The process comprises (a) the step of preparing porous silica, (b) the step of bringing the porous silica into contact with a liquid which contains either a metal or a compound that has the metal as a component element and infiltrating the liquid into the pores of the porous silica, and (c) the step of subjecting, after the step (b), the impregnated porous silica to a heat treatment to thereby form fine particles comprising the metal or the metal compound in the pores of the porous silica. When porous silica is synthesized by hydrolyzing an alkoxysilane in a solvent-free system, it is possible to synthesize porous silica having a fine pore diameter. Use of this porous silica as a template facilitates formation of particles (e.g., W, Cu, Cr, Mn, Fe, Co, or Ni or an oxide of any of these metals) that show peculiar properties not observed in the bulk material.

Aspects of the invention provide a process for upgrading a hydrocarbon feed. The process includes providing a hydrocarbon feed and a utility fluid. Then selectively extracting from the feed at least a portion of particulates to produce a raffinate and an extract. Third hydroprocessing at least a portion of the raffinate.

Aspects of the invention provide a process for upgrading a hydrocarbon feed. The process includes providing a hydrocarbon feed and a utility fluid. Then selectively extracting from the feed at least a portion of particulates to produce a raffinate and an extract. Third hydroprocessing at least a portion of the raffinate.

A reactor for hydrocarbon production that separates wax reaction products from lightweight gaseous reaction products. The reactor has a housing, a catalyst bed, a product recovery zone, and a stripping zone. The catalyst bed can be provided in multi-tubular and other fixed bed configurations. The stripping zone receives light-weight gas reaction products from the product recovery zone, while a gas outlet of the housing receives non-lightweight gaseous hydrocarbon reaction products from the product recovery zone. A wax outlet of the housing receives wax products from the product recovery zone.