A system for processing a hydrocarbon feed has a final stage reactor and internal separator with cyclone that forms a substantially gas stream and a substantially non-gas stream. The substantially gas stream is sent directly from the final stage reactor and separator to further downstream processing.

Disclosed are insert assemblies with stacked gas flow gaps to add and/or remove gases from a solid/gas mixture travelling through a barrier. An example system may comprise a barrier and an insert assembly in the barrier defining an annulus between the insert assembly and the barrier, wherein the insert assembly comprises stacked flow gaps configured for addition and/or removal of gas from a solid/gas mixture flowing in the annulus.

A chemical vessel utilizing induction heating elements and useful for preparing polyamides, such as nylon. The vessel can utilize an array of induction heating elements located inside a process chamber. Also described are a vessel, a heat exchanger, a process, and an apparatus useful for polyamide preparation.

A system for processing a hydrocarbon feed has a final stage reactor and internal separator with cyclone that forms a substantially gas stream and a substantially non-gas stream. The substantially gas stream is sent directly from the final stage reactor and separator to further downstream processing.

A polyolefin production system is provided. The polyolefin production system includes a plurality of gas-phase polymerization tanks configured to polymerize an olefin gas to form a polyolefin, a compressor comprising an inlet and an outlet and being configured to compress a an olefin-containing gas, an individual gas feed line disposed at each of the gas-phase polymerization tanks and configured to guide the gas fed from the outlet of the compressor to each of the gas-phase polymerization tanks, an individual gas discharge line disposed at each of the gas-phase polymerization tanks and discharging the gas from each of the gas-phase polymerization tanks, and a first valve installed in each of the individual gas feed lines.

A system for processing a hydrocarbon feed has a final stage reactor and internal separator with cyclone that forms a substantially gas stream and a substantially non-gas stream. The substantially gas stream is sent directly from the final stage reactor and separator to further downstream processing.

A method and device for lightening heavy oil by utilizing a suspension-bed hydrogenation process are provided. In the process, a part of a raw oil is mixed with a suspension-bed hydrocracking catalyst to form a first mixture, then the first mixture is subjected to first shear and second shear in sequence so as to realize high dispersion and mixing of the catalyst and the raw oil; through pretreatment of the raw oil, the device can prevent the raw oil from coking in the hydrogenation process; through the adoption of a suspension-bed reactor with a liquid phase self-circulation function or a cold-wall function; and light and heavy components are separated from the suspension-bed hydrogenated product in advance and only medium component is subjected to fixed-bed hydrogenation, thereby reducing the load of the fixed-bed hydrogenation, prolonging the service life of the fixed-bed catalyst, improving the yield and quality of gasoline and diesel, and being beneficial for energy conservation and emission reduction of the whole system.

Sono-chemical reactors and methods of using the same are provided. The sono-chemical reactors may include a plurality of sections that are sequentially connected along a longitudinal direction of the sono-chemical reactor. The plurality of sections may include a sono-reactor section that includes a reactant inlet through which reactants are supplied into the sono-reactor section and a static mixer section that is configured to receive a first reactant/product mixture from the sono-reactor section and is configured mix the first reactant/product mixture therein for reaction between unreacted reactants. An inner space of the sono-reactor section may taper along the longitudinal direction of the chemical reactor away from the reactant inlet. The plurality of sections may also include a product separation section that is configured to receive a second reactant/product mixture from the static mixer section and is configured to separate a product from the second reactant/product mixture.

A polyolefin production system is provided. The polyolefin production system includes a plurality of gas-phase polymerization tanks configured to polymerize an olefin gas to form a polyolefin, a gas transfer series line connecting the plurality of the gas-phase polymerization tanks to each other in series, a compressor having an inlet and an outlet and being configured to compress an olefin-containing gas, a gas main feed line disposed at the frontmost gas-phase polymerization tank and configured to guide the gas fed from the outlet of the compressor to the frontmost gas-phase polymerization tank, a gas discharge line disposed at the rearmost gas-phase polymerization tank, and a first valve installed in the gas main feed line.

Sono-chemical reactors and methods of using the same are provided. The sono-chemical reactors may include a plurality of sections that are sequentially connected along a longitudinal direction of the sono-chemical reactor. The plurality of sections may include a sono-reactor section that includes a reactant inlet through which reactants are supplied into the sono-reactor section and a static mixer section that is configured to receive a first reactant/product mixture from the sono-reactor section and is configured mix the first reactant/product mixture therein for reaction between unreacted reactants. An inner space of the sono-reactor section may taper along the longitudinal direction of the chemical reactor away from the reactant inlet. The plurality of sections may also include a product separation section that is configured to receive a second reactant/product mixture from the static mixer section and is configured to separate a product from the second reactant/product mixture.