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AssigneeChiyoda Chemical Engineering & Construction Co., Ltd.
InventorsHiroshi Yanagiako, Toshio Kanai, Yoshio Kogawa, Michihiro Yoshida, Zenji Mashino, Shin-ichi Shimizu, Teruo Sugiya, Masaki Onozaki
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This invention is directed to a sparging method wherein efficient gas-liquid contact is obtained without causing sloshing by introducing and dispensing gas into the liquid only through openings in the side wall of a specially designed sparger which has a single row of openings in its side wall around the periphery thereof and an open end, the gas being introduced at a rate such that the distance l between the openings in the side wall and the liquid level on the gas introduction side is within a range represented by the formula: 10 mm<l<(L-10) mm wherein L stands for the distance, which is at least 50 mm, between the openings in the side wall of the sparger and the open bottom.
A gas sparging method comprising introducing an exhaust gas containing SO.sub.2 through a tubular member extend into a vessel, the tubular member having (a) a side wall having only a single peripheral row of openings and (b) an open bottom end, said tubular member extending into a liquid containing a calcium compound, said liquid being contained in the vessel and having a liquid level, the openings in said side wall being below the liquid level, to bring down the level of the liquid in the tubular member to a position below the openings in said side wall, but above the open bottom end of the tubular member, the gas being dispersed in the liquid in the vessel surrounding the tubular member only through the openings in the side wall of the tubular member and without producing sloshing, the distance l between the openings in the side wall of the tubular member and the liquid level in the tubular member below said openings being in a range represented by the formula:
A gas sparging method comprising introducing an exhaust gas containing SO.sub.2 into a vessel into which a tubular member extends, the tubular member having (a) a side wall having only a single peripheral row of openings and (b) an open bottom end, said tubular member extending into a liquid containing a calcium compound, said liquid being contained in the vessel and having a liquid level, the openings in said side wall being below the liquid level, to bring down the level of the liquid in the vessel surrounding the tubular member to a position below the openings in said side wall, but above the open bottom end of the tubular member, the gas being dispersed into the liquid in the tubular member only through the openings in the side wall of the tubular member and without producing sloshing, the distance l between the openings in the side wall of the tubular member and the liquid level in the vessel surrounding the tubular member below said openings being in the range represented by the formula:
Dependencies are inferred from the claim text.