| 摘要 |
Methods and apparatus for reacting materials to provide a product. In a reactor (20) having an inner column (A) and an adjacent coaxial outer column (B), and having an upper zone (II) and an adjacent lower zone (I), both zones (I,II) are filled with a liquid (C). A gas (4) is fed into the liquid (C) at the lower end of the upper zone (II). The liquid (C) and a part of the gas (4) are circulated generally upward in one column (A or B) and generally downward in the other column (B or A) in the upper zone (II). Particles (15) of a solid substance are provided in a column (A or B) in the lower zone (I). The liquid (C) is circulated between the lower zone (I) and the upper zone (II) in such manner that the liquid (C) contacts and fluidizes the solid particles (15) while confining them to the lower zone (I), while the gas (4) contacts the liquid (C) and is confined to the upper zone (II).
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