A device and a process for forming a monolithic substantially closed-porosity ceramic fluidic device having a tortuous fluid passage extending through the device, the tortuous fluid passage having a smooth interior surface, a material of the ceramic body having a continuous and uniform distribution of grains at least between opposed major surfaces of the ceramic body. The process includes positioning a positive fluid passage mold within a volume of binder-coated ceramic powder, pressing the volume of ceramic powder with the mold inside to form a pressed body, heating the pressed body to remove the mold, and sintering the pressed body. A relationship between a first stability characteristic of the volume of ceramic powder and a second stability characteristic of the mold prevents discontinuities in the pressed body after pressing and/or during heating.

The present disclosure provides systems and methods for producing olefins via an oxidative coupling of methane (OCM) process. The systems and methods may comprise the use of a staged process comprising at least one non-adiabatic section that is in thermal communication with a heat transfer medium and at least one substantially adiabatic section. The systems and methods may also comprise the use of a diluent stream which may improve methane conversion in an OCM reactor and an ethylene/ethane ratio in a post-bed cracking unit. The methods and systems may further comprise injecting oxygen (O.sub.2) and a paraffin into a gas stream containing a radical transfer agent to provide a reaction mixture. The reaction mixture may be held in a vessel for a time period greater than an auto-ignition delay time (AIDT), such that the reaction mixture may ignite to liberate heat and convert to a product mixture comprising olefins.

Modular reactors comprising a chassis, reactor tubing and optionally a cover are disclosed. The chassis comprises a plurality of channels of different lengths into which a length of reactor tubing is placed to create the reactor portion of the flow reactor.

The current document is directed to an efficient multi-channel chemical reactor having a multichannel core containing a plurality of parallel channels, with conductive walls, having a varying composition along their lengths. The channels are heated by a frequency-addressing different regions within the reactor with an inductive coil, driven by an agile frequency or spread spectrum emission controller.

The current document is directed to an efficient multi-channel chemical reactor having a multichannel core containing a plurality of parallel channels, with conductive walls, having a varying composition along their lengths. The channels are heated by a frequency-addressing different regions within the reactor with an inductive coil, driven by an agile frequency or spread spectrum emission controller.

A process for continuous preparation of halogenated alkoxyethane of general formula XClHCCF.sub.2OR, where X is Cl or F and OR is C.sub.1-4 alkoxy, the process comprising a step of introducing in a plate reactor reaction components comprising (i) a compound of general formula XClC?CF.sub.2, (ii) a base, and (iii) a C.sub.1-4 alkanol, wherein a) the plate reactor comprises a fluidic module defining one or more fluidic path(s) through which the reaction components flow as a reaction mixture, and b) the halogenated alkoxyethane is formed at least upon the reaction components mixing, with the so formed halogenated alkoxyethane flowing out of the plate reactor in a reactor effluent.

An apparatus includes a substrate having a recess and a multitude of particles arranged in the recess. A first portion of the particles is joined to a porous structure by means of a coating. A second portion of the particles is not joined by means of the coating. The first portion of the particles is arranged closer to an opening of the recess than the second portion of the particles so that a leaking of the second portion of the particles from the recess through the opening is prevented.

A method of controlling the temperature of autothermal microchannel reactors is disclosed. A hierarchical control structure employs a distributed temperature controller including a phase change material and a supervisory control system including the control of one or more inputs into the reactor. The phase change material acts as a fast, distributed controller, and the supervisory controller acts over a longer time horizon to mitigate persistent disturbances. A stochastic optimization method for selecting the phase change layer thickness is employed.

The present invention belongs to the technical field of green catalysis and biosynthesis, and particularly relates to a carbon-based microreactor, and a preparation method and application thereof. According to the present invention, a carbon-based microchannel monolithic column is prepared by utilizing a graded pore structure of regular channels of natural wood in combination with an inorganic salt supporting framework, temperature programmed accurate carbonization and other methods, and then, the multiple advantages of the carbon monolithic column, the microreactor, and immobilized enzyme/chemical catalyst are fully played from the view of key technologies such as carbon-based microreactor construction, operation control, etc. The microreactor has the advantages of low cost, easy access, simple preparation, high flux, high mass and heat transfer efficiency, environmental friendliness, easy mass production, continuity, automation, suitability for homogeneous and heterogeneous reactions, high product quality, and long-term stable operation.

The present invention belongs to the technical field of green catalysis and biosynthesis, and particularly relates to a carbon-based microreactor, and a preparation method and application thereof. According to the present invention, a carbon-based microchannel monolithic column is prepared by utilizing a graded pore structure of regular channels of natural wood in combination with an inorganic salt supporting framework, temperature programmed accurate carbonization and other methods, and then, the multiple advantages of the carbon monolithic column, the microreactor, and immobilized enzyme/chemical catalyst are fully played from the view of key technologies such as carbon-based microreactor construction, operation control, etc. The microreactor has the advantages of low cost, easy access, simple preparation, high flux, high mass and heat transfer efficiency, environmental friendliness, easy mass production, continuity, automation, suitability for homogeneous and heterogeneous reactions, high product quality, and long-term stable operation.