摘要:
Methods of contacting two or more immiscible liquids by means of a unitary thermally-tempered microstructured fluidic device [10] comprising a reactant passage [26] therein with characteristic cross-sectional diameter [11] in the 0.2 to 15 millimeter range, having, in order along a length there of, two or more inlets [A, B or A, B1] for entry of reactants, an initial mixer passage portion [38] characterized by having a form or structure that induces a degree of mixing in fluids passing therethrough. an initial dwell time passage portion [40] characterized by having a volume of at least 0. milliliter and a generally smooth and continuous form or structure and one or more additional mixer passage portions [44], each additional mixer passage portion followed immediately by a corresponding respective additional dwell time passage portion [46]; and flowing the two or more immiscible fluids through the reactant passage, wherein the two or more immiscible fluids are flowed into the two or more inlets [A, B or A, B1] such that the total flow of the two or more immiscible fluids flows through the initial mixer passage portion [38]. Unitary devices [10] in which the method may be performed are also disclosed.
摘要:
A microreaction device or system (4) includes at least one thermal control fluidic passage (C,E) and a principal working fluidic passage (A) with average cross-sectional area in the range of 0.25 to 100 mm 2 , and having a primary entrance (92) and multiple secondary entrances (94) with the spacing between secondary entrances (94) having a length along the passage (A) of at least two times the root of the average cross-sectional area of the passage (A). The device or system (4) also includes at least one secondary working fluidic passage (B) having an entrance (102) and multiple exits (106) including a final exit (106), each exit (106) being in fluid communication with a corresponding one of the multiple secondary entrances (94) of the principal fluidic passage (A).
摘要:
This disclosure is directed to porous ceramic processing; and in particular to a method using selected pore forming materials to avoid high exotherms during the ceramic firing process, and the green bodies formed using the selected pore forming materials. The selected pore forming materials are homogeneous wax/non-ionic surfactant particles formed by a prilling process in which the wax is melted and the non-ionic surfactant is mixed into the wax prior to prilling. The disclosure is useful in the manufacture porous ceramic honeycomb bodies including ceramic honeycomb filter traps.
摘要:
A chemical processing apparatus (10) is disclosed. The apparatus (10) includes a pressure vessel (12) and a microreactor (20) disposed within the pressure vessel (12). The pressure vessel (12) is constructed and arranged to maintain the pressure vessel (12) and the microreactor (20) at elevated pressure when a chemical operation is performed within the apparatus (10). A method of operating a microreactor (20) at high pressure is also disclosed.
摘要:
Methods of contacting two or more immiscible liquids by means of a unitary thermally-tempered microstructured fluidic device [10] comprising a reactant passage [26] therein with characteristic cross-sectional diameter [11] in the 0.2 to 15 millimeter range, having, in order along a length there of, two or more inlets [A, B or A, B1] for entry of reactants, an initial mixer passage portion [38] characterized by having a form or structure that induces a degree of mixing in fluids passing therethrough. an initial dwell time passage portion [40] characterized by having a volume of at least 0. milliliter and a generally smooth and continuous form or structure and one or more additional mixer passage portions [44], each additional mixer passage portion followed immediately by a corresponding respective additional dwell time passage portion [46]; and flowing the two or more immiscible fluids through the reactant passage, wherein the two or more immiscible fluids are flowed into the two or more inlets [A, B or A, B1] such that the total flow of the two or more immiscible fluids flows through the initial mixer passage portion [38]. Unitary devices [10] in which the method may be performed are also disclosed.
摘要:
A wall-flow honeycomb filter comprising a ceramic monolith (102) having a plurality of porous walls (114) formed therein. The plurality of porous walls (114) define a plurality of inlet cells (110) and a plurality of outlet cells (112) extending between an inlet end face (106) and an outlet end face (108) of the monolith. The inlet cells (110) are open at the inlet end face (106) and plugged at or near the outlet end face (108). The outlet cells (112) are open at the outlet end face (108) and plugged at or near the inlet end face (106). The monolith (102) has a ratio of a combined cross-sectional area of the inlet cells (110) to a combined cross-sectional area of the outlet cells (112) greater than 1. The monolith (102) has at least one inlet cell cluster (120) which contains an N x M group of inlet cells (110), N and M being integers greater than 1, each inlet cell cluster (120) consisting of a plurality of inlet cells (110) separated by inlet cluster walls (124).
摘要:
A microreaction device or system (4) includes at least one thermal control fluidic passage (C,E) and a principal working fluidic passage (A) with average cross-sectional area in the range of 0.25 to 100 mm 2 , and having a primary entrance (92) and multiple secondary entrances (94) with the spacing between secondary entrances (94) having a length along the passage (A) of at least two times the root of the average cross-sectional area of the passage (A). The device or system (4) also includes at least one secondary working fluidic passage (B) having an entrance (102) and multiple exits (106) including a final exit (106), each exit (106) being in fluid communication with a corresponding one of the multiple secondary entrances (94) of the principal fluidic passage (A).
摘要:
A microreaction device or system (4) includes at least one thermal control fluidic passage (C, E) and a principal working fluidic passage (A) with average cross-sectional area in the range of 0.25 to 100 mm 2 , and having a primary entrance (92) and multiple secondary entrances (94) with the spacing between secondary entrances (94) having a length along the passage (A) of at least two times the root of the average cross-sectional area of the passage (A). The device or system (4) also includes at least one secondary working fluidic passage (B) having an entrance (102) and multiple exits (106) including a final exit (106), each exit (106) being in fluid communication with a corresponding one of the multiple secondary entrances (94) of the principal fluidic passage (A).