Provided is a method of producing carbon nanotubes by supplying a catalyst and a carbon source to a fluidized bed reactor. The fluidized bed reactor has an expanded zone. A flow velocity (linear velocity) of a raw material supplied to the fluidized bed reactor is equal to or higher than a terminal velocity of an internal material in the fluidized bed reactor.

The present disclosure provides devices and systems that utilize concurrent and countercurrent exchange platforms to produce purified silicon.

The present disclosure provides devices and systems that utilize concurrent and countercurrent exchange platforms to produce purified silicon.

The invention provides a continuous process for the preparation of ethylene glycol and 1, 2-propylene glycol from starting material comprising one or more saccharides, said process being carried out in a reactor system comprising a reactor vessel equipped with an external recycle loop and said process comprising the steps of: i) providing the starting material in a solvent, via an inlet, to the external recycle loop and contacting it therein with a retro-aldol catalyst composition to provide an intermediate stream; ii) then contacting said intermediate stream with hydrogen in the presence of a hydrogenation catalyst composition in the reactor vessel; iii) withdrawing a product stream comprising glycols from the reactor vessel; iv) providing a portion of said product stream, via an outlet, for separation and purification of the glycols contained therein; and v) recycling the remainder of said product stream via the external recycle loop.

Disclosed herein are methods of preparing a composition comprising crystalline biomolecules, for example, crystalline antibodies. In exemplary embodiments, the method comprises forming a fluidized bed of crystalline biomolecules using, for example, a counter-flow centrifuge to exchange buffer and/or to concentrate the crystalline biomolecules in a solution. Also provided are methods of detecting crystalline biomolecules and/or amorphous biomolecules in a sample.

Disclosed herein are methods of preparing a composition comprising crystalline biomolecules, for example, crystalline antibodies. In exemplary embodiments, the method comprises forming a fluidized bed of crystalline biomolecules using, for example, a counter-flow centrifuge to exchange buffer and/or to concentrate the crystalline biomolecules in a solution. Also provided are methods of detecting crystalline biomolecules and/or amorphous biomolecules in a sample.

The present disclosure relates generally to new forms of portable energy generation devices and methods. The devices are designed to covert formic acid into released hydrogen, alleviating the need for a hydrogen tank as a hydrogen source for fuel cell power.

The present disclosure provides devices and systems that utilize concurrent and countercurrent exchange platforms to produce purified silicon.

The present disclosure provides devices and systems that utilize concurrent and countercurrent exchange platforms to produce purified silicon.

The invention relates to the field of processing petroleum products and more particularly to processes of hydroconversion and hydrocracking. A hydrocracking system for petroleum feedstock comprises a liquid-phase hydrocracking (LPH) section that comprises at least one LPH reactor; a gas-phase hydrocracking (GPH) section that comprises at least one GPH reactor; a separation section between the LPH section and the GPH section, comprising at least one high-pressure separator and at least one low-pressure separator; at least one stream supply line from the high-pressure separator to the low-pressure separator, wherein said at least one stream supply line comprises a reducing valve and a throttling cartridge arranged in the supply line downstream of the reducing valve; a heat-transfer medium feed line to the stream supply line and the pressure reducing valve. The technical result is to provide reliable operation of the hydrocracking system due to the prevention of erosive wear and destruction of the system components in the separation section.