NOVELTY - Device comprises transmission device for transmitting unprocessed organic carbon containing feedstock (414) comprising free water, intercellular water, intracellular water, intracellular water-soluble salts, and plant cells comprising cell walls that include lignin, hemicellulose, and microfibrils to reaction chamber (400). The reaction chamber comprises entrance passage, exit passage for fluid, exit passageway for processed organic carbon containing feedstock, and three sections i.e. wet fibril disruption section (410) for interacting with lignin and hemicellulose between the fibrils.    USE - Device for removing water and water soluble salts from organic carbon containing feedstock used as input for processes that produce energy-producing products such as liquid hydrocarbon fuels, solid fuel to supplant coal, and synthetic natural gas.    DETAILED DESCRIPTION - Device comprises transmission device for transmitting unprocessed organic carbon containing feedstock (414) comprising free water, intercellular water, intracellular water, intracellular water-soluble salts, and plant cells comprising cell walls that include lignin, hemicellulose, and microfibrils to reaction chamber (400). The reaction chamber comprises entrance passage, exit passage for fluid, exit passageway for processed organic carbon containing feedstock, and three sections i.e. wet fibril disruption section (410) for interacting with lignin and hemicellulose between the fibrils to obtain regions of the cell wall susceptible to outflow water-soluble salts. The vapor explosion section is connected with wet fibril disruption section and to volatilize plant fibril permeable fluid through rapid decompression to penetrate more susceptible regions of the cell wall so as to create porous organic carbon containing feedstock. The compaction section (430) is connected with the vapor explosion section (420) to compress the porous organic carbon containing feedstock between pressure plates. The collection device is connected with the reaction chamber to gather the processed organic carbon containing feedstock having a water content of less than or equal to 40 wt.% and water-soluble intracellular salt content decreased by 50%. An INDEPENDENT CLAIM is included for a method for removing water and water-soluble salts from organic carbon containing feedstock, which involves:    (A) transferring unprocessed organic carbon containing feedstock comprising free water, intercellular water, intracellular water, intracellular water-soluble salts, and plant cells comprising cell walls that include lignin, hemicellulose, and microfibrils into reaction chamber;    (B) exposing the feedstock to hot solvent under pressure for certain time at conditions specific to the feedstock to obtain regions of the cell wall comprising crystallized cellulosic fibrils, lignin, and hemicellulose;    (C) penetrating water-soluble salts without dissolving 25% lignin and hemicellulose;    (D) removing the pressure so as to penetrate the more penetrable regions to create porous feedstock with open pores in the plant cell walls; and    (E) pressing the porous feedstock with conditions that include adjustable compaction pressure versus time profile and compaction time duration, between pressure plates to prevent felt from forming and blocking escape from the reaction chamber of intracellular and intercellular water, and intracellular water-soluble salts, and to create processed organic carbon containing feedstock.    DESCRIPTION OF DRAWING(S) - The drawing shows a side view of a reaction chamber.    Reaction chamber (400)    Wet fibril disruption section (410)    Unprocessed organic carbon containing feedstock (414)    Vapor explosion section (420)    Compaction section (430)