A process for recovering catalyst from a fluidized catalytic reactor effluent is disclosed comprising reacting a reactant stream by contact with a stream of fluidized catalyst to provide a vaporous reactor effluent stream comprising catalyst and products. The vaporous reactor effluent stream is contacted with a liquid coolant stream to cool it and transfer the catalyst into the liquid coolant stream. A catalyst lean vaporous reactor effluent stream is separated from a catalyst rich liquid coolant stream. A return catalyst stream is separated from the catalyst rich liquid coolant stream to provide a catalyst lean liquid coolant stream, and the return catalyst stream is transported back to said reacting step.

A process for recovering catalyst from a fluidized catalytic reactor effluent is disclosed comprising reacting a reactant stream by contact with a stream of fluidized catalyst to provide a vaporous reactor effluent stream comprising catalyst and products. The vaporous reactor effluent stream is contacted with a liquid coolant stream to cool it and transfer the catalyst into the liquid coolant stream. A catalyst lean vaporous reactor effluent stream is separated from a catalyst rich liquid coolant stream. A return catalyst stream is separated from the catalyst rich liquid coolant stream to provide a catalyst lean liquid coolant stream, and the return catalyst stream is transported back to said reacting step.

A utility vehicle is configured for independently controlling torque at each of the ground-engaging members.

A process for recovering catalyst from a fluidized catalytic reactor effluent is disclosed comprising reacting a reactant stream by contact with a stream of fluidized catalyst to provide a vaporous reactor effluent stream comprising catalyst and products. The vaporous reactor effluent stream is contacted with a liquid coolant stream to cool it and transfer the catalyst into the liquid coolant stream. A catalyst lean vaporous reactor effluent stream is separated from a catalyst rich liquid coolant stream. A return catalyst stream is separated from the catalyst rich liquid coolant stream to provide a catalyst lean liquid coolant stream, and the return catalyst stream is transported back to said reacting step.

A utility vehicle is configured for independently controlling torque at each of the ground-engaging members.

Filtering panel 100 for passively adsorbing micro particles such as atmospheric pollutants or the like, the panel having a first outer layer 10, a second outer layer 30 and an intermediate filtering layer 20 arranged between the first and second outer layers 10 and 30, the intermediate filtering layer 20 having a support structure impregnated with porous active carbons, where at least one of the outer layers 10 and 30 is optionally suitable for painting and/or coloring and/or printing, the panel 100 being therefore suitable for use for displaying information and/or directions, for example of an advertising or commercial nature, as well as an urban, extra-urban and domestic design element.

The invention relates to gas separation, particularly to a process for separating CO.sub.2 from a CO.sub.2 containing gas stream with varying CO.sub.2 concentration using a membrane-based separation system. The process for separating CO.sub.2 comprises: (i) feeding the CO.sub.2 containing gas stream into a membrane-based separation system comprising one or more membrane stages in-line, each membrane stage producing a CO.sub.2-depleted retentate stream and a rich CO.sub.2 permeate stream, and (ii) recycling a part of the CO.sub.2-rich permeate stream from at least one membrane stage as a recycled stream, into a preceding feed stream of one or more membrane stages in the membrane-based separation system to adjust the CO.sub.2 concentration of the feed stream. The process could stabilize the CO.sub.2 concentration in the feed steam by recirculation of a fraction of the high purity CO.sub.2 permeate to the feed of the membrane system, which would result in a lower incremental auxiliary load than other options such as compression of the entire gas stream.

In variants, an air treatment module can include a sorption module defining a sorption cavity, an air intake channel, an air exhaust channel, and a target substance exhaust channel. The air treatment module can include a sorbent encapsulated within a sorbent structure (e.g., microencapsulated carbon sorbent) which can sorb carbon dioxide from air passing through the sorption cavity. The air treatment module can desorb carbon dioxide from the air and store the carbon dioxide in long term storage.

In variants, an air treatment module can include a sorption module defining a sorption cavity, an air intake channel, an air exhaust channel, and a target substance exhaust channel. The air treatment module can include a sorbent encapsulated within a sorbent structure (e.g., microencapsulated carbon sorbent) which can sorb carbon dioxide from air passing through the sorption cavity. The air treatment module can desorb carbon dioxide from the air and store the carbon dioxide in long term storage.

The invention relates to gas separation, particularly to a process for separating CO.sub.2 from a CO.sub.2 containing gas stream with varying CO.sub.2 concentration using a membrane-based separation system. The process for separating CO.sub.2 comprises: (i) feeding the CO.sub.2 containing gas stream into a membrane-based separation system comprising one or more membrane stages in-line, each membrane stage producing a CO.sub.2-depleted retentate stream and a rich CO.sub.2 permeate stream, and (ii) recycling a part of the CO.sub.2-rich permeate stream from at least one membrane stage as a recycled stream, into a preceding feed stream of one or more membrane stages in the membrane-based separation system to adjust the CO.sub.2 concentration of the feed stream. The process could stabilize the CO.sub.2 concentration in the feed steam by recirculation of a fraction of the high purity CO.sub.2 permeate to the feed of the membrane system, which would result in a lower incremental auxiliary load than other options such as compression of the entire gas stream.