Abstract: Multi-tubular reactors for fluid processing incorporate reactor tubes containing thermally conductive monolithic catalyst structures with relative dimensions and thermal expansion characteristics effective to establish both a non-interfering or slidably interfering fit between the monolith structures and the reactor tubes at selected monolith mounting temperatures, and geometries at reactor operating temperatures such that the operating gaps between tubes and monoliths under the conditions of reactor operation do not exceed about 250 ?m over tube sections where high heat flux to or from the monoliths is required.

Abstract: Multi-tubular reactors for fluid processing incorporate reactor tubes containing thermally conductive monolithic catalyst structures with relative dimensions and thermal expansion characteristics effective to establish both a non-interfering or slidably interfering fit between the monolith structures and the reactor tubes at selected monolith mounting temperatures, and geometries at reactor operating temperatures such that the operating gaps between tubes and monoliths under the conditions of reactor operation do not exceed about 250 ?m over tube sections where high heat flux to or from the monoliths is required.

Abstract: A multiphase reactor device incorporating a stack of monolith catalysts comprising monolith slabs (spacers) between adjacent monolith blocks, the stack, preferably of larger channel diameters and higher void fractions than the monolith blocks, the spacers (i) reducing hydraulic restriction and channel blocking at the stacking interface, (ii) increasing the number of block interfaces for the disruption and mixing of the laminar film falling down the monolith wall and, (iii) for counter-current applications, raising the resistance of the stack to flooding to broaden the operating window or range of gas and liquid flow velocities operable in the reactor.

Abstract: A multiphase reactor device incorporating a stack of monolith catalysts comprising monolith slabs (spacers) between adjacent monolith blocks, the stack, preferably of larger channel diameters and higher void fractions than the monolith blocks, the spacers (i) reducing hydraulic restriction and channel blocking at the stacking interface, (ii) increasing the number of block interfaces for the disruption and mixing of the laminar film falling down the monolith wall and, (iii) for countercurrent applications, raising the resistance of the stack to flooding to broaden the operating window or range of gas and liquid flow velocities operable in the reactor.

Abstract: A device for extending a flooding limit of a packed column includes a stack of monolith segments having a plurality of channels. The monolith segments are stacked in order of increasing channel diameter so as to effectively increase the effective channel hydraulic diameter of the packed column.

Abstract: A device for extending a flooding limit of a packed column includes a stack of monolith segments having a plurality of channels. The monolith segments are stacked in order of decreasing channel diameter in the direction of liquid flow into the column, the increasing channel diameters toward the top of the stack acting to effectively increase the inlet channel diameter of the column.

Abstract: A channel geometry for monolith and honeycomb catalysts used in two- and three-phase catalytic reactions or gas-liquid mass transfer processes features a desirable channel shape that enhances liquid/structure contacting efficiency and gas/liquid catalytic reaction activity. Gas/liquid catalytic hydrogenation or hydrotreating processes carried with these catalysts use efficient liquid/channel surface contacting and mass transfer of reactants from bulk liquid onto the channel surface to achieve high conversion efficiencies.

Abstract: A method and system for configuring an automotive emissions-control system via the Internet. A user submits an emissions-control system profile which includes fluid flow conditions, substrate parameters, and canning conditions. The supplier Web site system receives the emissions-control system profile and performs a pressure drop calculation, transmitting the results to the customer computer. If pressure drop results are within the range targeted by the user, the user selects that the customer system send a request to the supplier Web site system to provide a selection of all the products from the supplier's product database which satisfy the pressure drop conditions. The user then requests additional information on a specific product or on placing an order. The supplier Web site system directs the request to a supplier representative for processing.