摘要:
A process for fermenting syngas is provided which is effective for decreasing an amount of time needed to inoculate a main reactor. The process includes propagating a culture of acetogenic bacteria to provide an inoculum for a main reactor and fermenting syngas in the main reactor.
摘要:
Provided are a treatment method for a barren solution, and a treatment device for a barren solution, with which hydrogen sulfide can be efficiently removed from the barren solution. In an aeration tank provided with a vertical-type cylindrical reaction vessel 110, stirring blades 120 arranged in the reaction vessel 110, and an annular aeration tube 130 having a large number of air outlets 131, which is arranged to a bottom part of the reaction vessel 110, aeration is performed by blowing gas for aeration into the reaction vessel 120 from a large number of air outlets 131 of the aeration tube 130 while stirring a liquid by rotation of the stirring blades 120.
摘要:
The present invention relates to a kneading machine (1) of the type comprising a tank (2) and a stirrer (4) rotating in the tank (2) around an axis substantially coinciding with a transmission shaft (3) which extends into the tank (2) to convey a driving motion to the stirrer (4), also comprising fixed blades (5) housed in the tank (2) protruding radially with respect to the rotation axis of the stirrer (4); a further object of the invention relates to a functioning method of said machine (1).
摘要:
The present invention relates to a kneading machine (1) of the type comprising a tank (2) and a stirrer (4) rotating in the tank (2) around an axis substantially coinciding with a transmission shaft (3) which extends into the tank (2) to convey a driving motion to the stirrer (4), also comprising fixed blades (5) housed in the tank (2) protruding radially with respect to the rotation axis of the stirrer (4); a further object of the invention relates to a functioning method of said machine (1).
摘要:
A process for fermenting syngas is provided which is effective for decreasing an amount of time needed to inoculate a main reactor. The process includes propagating a culture of acetogenic bacteria to provide an inoculum for a main reactor and fermenting syngas in the main reactor.
摘要:
Apparatus and methods of mixing and dispensing small samples are described. Samples may be mixed in a small vessel (12) which is provided with an impeller (20) located at or adjacent its base (14) and driven by a shaft (22) extending through the base. Mounted for rotation within the vessel, either with the impeller or independently thereof, is an agitator means. Samples may be dispensed from the vessel using a piston member (40) having a through passage (44). The piston member is insertable into the vessel to force the sample therefrom through the passage.
摘要:
A mixer capable of developing suitable stirring characteristics by forming a sufficient vertical circulation flow over the entire part of the inside of a tank, wherein an opening (4) is formed in a stirring blade (3) under the following conditions: (i) the ratio of the opening area of the opening (4) in the upper half (U) of the stirring blade (3) to the overall area of the upper part (U) of the stirring blade (3) (the opening rate in the upper half (U) of the stirring blade (3)) is 45 to 80%, (ii) the ratio of the opening area of the opening (4) in the lower half (D) of the stirring blade to the overall area of the lower half (D) of the stirring blade (3) (the opening rate in the lower half (D) of the stirring blade (3)) is 18 to 50%, and (iii) the ratio of the opening rate in the lower half (D) of the stirring blade (3) to the opening rate in the upper half (U) of the stirring blade (3) is 31 to 71%.
摘要:
A mixer apparatus accordant with the invention includes a closed reactor (20); two mixers at different heights (28, 29), which are on the same shaft (27), a gas feed pipe (30) below the lower mixer and baffles. The blades of the mixers are mostly rectangular in shape and a minimum of six in number. The angle of inclination of the blades of the lower mixer is around 50-70° and that of the upper mixer around 25-35°. The number of baffles (23) is at least six and their range around 20% of the reactor diameter. The invention also concerns a corresponding method.