PROBLEM TO BE SOLVED: To provide an effective feed system and a related method for use in introducing a comminuted cellulosic fibrous material slurry into a treatment vessel.;SOLUTION: The feed system 111 for the cellulose pulp treatment vessel (such as a continuous digester) is not limited by the required L/W ratio of the pump 121 feeding a wood chip slurry 113 to a high-pressure transfer device 124, and the feed system 111 may be kept at a low temperature to minimize flashing of liquid into steam, and a return conduit from the treatment vessel to the transfer device high-pressure inlet 126 may be eliminated. Some of the liquid is removed from the slurry just before the low-pressure inlet 123 to the transfer device 124, and/or just after the high-pressure outlet 127, to reduce the L/W ratio of the slurry by at least 0.25, e.g. from (3.0:1) to (2.25:1) just before the low-pressure inlet 123, and from (7.0:1) to (5.0:1) substantially immediately after the high-pressure outlet 127.;COPYRIGHT: (C)2003,JPO
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