Ancillary embodiments and modifications to a homogenizer unit (“PPH”), and methods of use directed to purification of biogas or other raw methane streams. The apparatus includes a homogenizer body, one or more stream inlets (for the raw methane), one or more chilled water inlets, a mixing zone where the water stream is commingled with the raw methane stream, and a venturi immediately downstream from the mixing zone such that the commingled streams are pulled into the venturi resulting in homogenization. The PPH components are insulated to maintain the chilled water of the various streams at a cooled, below ambient temperature, increasing dissolution of the contaminant gases into the chilled water, and producing a purified methane stream including little or no H.sub.2S and CO.sub.2.

A chemistry dispensing assembly for a laundry appliance includes a reservoir that dispenses a laundry chemistry to a treatment chamber. A mixing channel is positioned below the reservoir that receives the laundry chemistry dispensed from the reservoir. A fluid assembly delivers a fluid carrier through a flow path that includes the mixing channel. The mixing channel is defined between an underside of the reservoir and an upper surface of the mixing channel.

A powder transfer bag includes a balloon or a membrane sealing its mouth. A connector to be used with the bags allows the bag to connect to a hydration device. A method of hydrating material in a powder transfer bag is provided.

A mixer for an exhaust system of an internal combustion engine includes a first mixer part (12) with a plate shape body (14) having an incoming upstream flow side (18), with respect to an exhaust gas main flow direction (A) and a downstream outflow side (22), and a second mixer part (24), on an outflow side, with a bottom wall (26) spaced apart from the plate shape body and with two side walls (28, 30), extending from the bottom wall (26) towards the plate shape body and fixed at the first mixer part. The mixer parts define a reactant injection duct (32) receiving reactant in a main injection direction (R). An exhaust gas main passage opening (54) the plate shape body opens towards the reactant injection duct with a plurality of exhaust gas secondary passage openings (78, 80, 82, 84, 86, 88, 90, 92) run past the injection duct.

A flow reactor has a module having a process fluid passage with an interior surface, a portion of the passage including a cross section along the portion having a cross-sectional shape, and a cross-sectional area with multiple minima along the passage. The cross-sectional shape varies continually along the portion and the interior surface of the portion includes either no pairs of opposing flat parallel sides or only pairs of opposing flat parallel sides which extend for a length of no more than 4 times a distance between said opposing flat parallel sides along the portion and the portion contains a plurality of obstacles distributed along the portion.

An exhaust system includes a mixer assembly unit (26a) with a mixer body (48a) with an incoming flow side (58a) and with an outflow side (60a) and with a plate shaped carrier element (24a) with a radially outward carrier element body (44a). The mixer body includes a plurality of flow deflection elements (62a) and a holding area (70a). The carrier element includes a counter-holding area (46a) connected in substance to a holding area. The mixer assembly unit is arranged in a junction area of two tubular exhaust gas guide elements (14a, 16a). The exhaust gas guide elements include flange shaped coupling sections. The carrier element body is arranged between the flange shaped coupling sections of the exhaust gas guide elements. A coupling element engages the flange shaped coupling sections and extends over the coupling sections on axial sides oriented facing away from one another radially inwards.

A mixer assembly unit, especially for an exhaust system of an internal combustion engine of a vehicle, includes a mixer body (48a) with an incoming flow side (58a) and with an outflow side (60a) and with a plurality of flow deflection elements (62b). A carrier area (24a) is provided radially outwards in relation to a mixer longitudinal axis (L) at the mixer body (48a). The carrier area (24a) has an exhaust gas guide element connection area (72a) for permanent connection to a preferably tubular exhaust gas guide element (16a). Radially outside of the exhaust gas guide element connection area (72a), a flange coupling section (88a) couples with a flange coupling section (98a) of another exhaust gas guide element (14a).

A mixer assembly for a vehicle exhaust system includes a mixer shell defining an internal cavity, wherein the mixer shell includes an upstream end configured to receive exhaust gases and downstream end, and a reactor positioned within the internal cavity. The reactor has a reactor inlet configured to receive injected fluid and a reactor outlet that directs a mixture of exhaust gas and injected fluid into the internal cavity. An inlet baffle is mounted to the upstream end of the mixer shell. The inlet baffle includes at least one opening that directs exhaust gas into at least one exhaust gas inlet to the reactor and a plurality of bypass openings that direct exhaust gas to bypass entry into the reactor. The inlet baffle includes a crowned portion that curves away from the reactor to provide for an increased open area within the internal cavity between the inlet baffle and the reactor.

A method for operating an oxycombustion engine system includes passing a nitrogen-depleted gas, a fuel, and a recycled exhaust gas into a combustion chamber, combusting a mixture of the nitrogen-depleted gas, the fuel, and the recycled exhaust gas, thereby producing an exhaust gas including carbon dioxide, detecting a pressure of the recycled exhaust gas passed to the combustion chamber, determining whether the detected pressure of the recycled exhaust gas is less than a configurable pressure threshold, and in response to determining that the detected pressure of the recycled exhaust gas is less than the configurable pressure threshold, increasing the pressure of the recycled exhaust gas passed to the combustion chamber.

One or more techniques and/or systems are disclosed for saturating a gas with a liquid-borne compound. A bubbler container may be configured to contain a carrier liquid, which comprises a desired compound. The container may comprise at least one channeling plane, disposed between the top and bottom of the container, which may be configured to allow gas bubbles to travel through a circuitous, channeling route. The gas can be introduced to the container at a bottom portion of the container, into the carrier liquid comprising the compound. Carrier gas bubbles formed in the liquid may be forced to travel the channeling route to a top portion of the container, where gas saturated with the compound may be collected.