NOVELTY - Composition comprises a processed biochar pellet composition comprising processed biochar made from processed organic-carbon-containing feedstock (OCCF) and having energy density of at least 21 MMBTU/ton (24 GJ/MT) and water content of less than 10 wt.%, where intracellular water-soluble salt content in processed OCCF is decreased more than 60 wt.% on dry basis from that of unprocessed OCCF. The processed biochar pellet is made from unprocessed OCCF i.e. converted into processed OCCF with beneficiation sub-system, processed biochar with heating sub-system, and processed biomass pellet.    USE - The composition is useful for producing solid char fuel, and as a clean coal substitute in devices to generate heat and electricity.    ADVANTAGE - The composition: can be prepared by a process, which reduces a cost per weight of removing the water and water-soluble salt by less than 60% of the cost per weight of similar water removal from known mechanical, known physiochemical or known thermal processes (claimed), and eliminates the need of catalyst; has low salt content, hence reduces adverse corrosive wear and maintenance cleaning of the devices; reduces the requirement of energy; is prepared form a renewable source; and exhibits improved purity.    DETAILED DESCRIPTION - Composition comprises a processed biochar pellet composition comprising a processed biochar made from a processed organic-carbon-containing feedstock (OCCF) and having an energy density of at least 21 MMBTU/ton (24 GJ/MT) and a water content of less than 10 wt.%, where an intracellular water-soluble salt content in the processed OCCF is decreased more than 60 wt.% on a dry basis from that of unprocessed OCCF that is the source of the processed OCCF. The processed biochar pellet is made from unprocessed OCCF that is converted into a processed OCCF with a beneficiation sub-system, into the processed biochar with a heating sub-system, and into the processed biomass pellet with a pelletizing sub-system. An INDEPENDENT CLAIM is also included for making the processed biochar pellet comprising processed biochar, comprising: inputting into a system comprising a first, a second and a third subsystem, the unprocessed OCCF that includes free water, intercellular water, intracellular water, intracellular water-soluble salts, and at least some plant cells comprising cell walls that include lignin, hemicellulose and microfibrils within fibrils; passing the unprocessed OCCF through the first subsystem, a beneficiation sub-system process, to result in processed OCCF having a water content of less than 20 wt.% and a water soluble intracellular salt content that is reduced by at least 60 wt.% on a dry basis from that of the unprocessed OCCF; passing the processed OCCF through the second subsystem, a heating sub-system process, to result in a processed biochar; and passing the processed biochar through the third subsystem, a pelletizing sub-system process, to result in the pelletized processed biohchar pellets made from the processed organiccarbon-containing feedstock.