of throughput of the solvent extractor in the next phase the batt manufacture is important to maximize phytoleum yield because the consistency of the mat will allow for predictable levels of solvent flow for optimum oil extraction in the dry milling of this biomass meaning no additional process water is added during milling an aqueous solution will also be produced this aqueous portion arising from the milling will be recovered and added into the solvent extraction stream or juice as shown in fig3 part 2 f the overall resulting product from this first series of steps is a solvent permeable fibrous mat of material suitable for solvent extraction see fig3 part 2 h and a liquid aqueous solution representing lysed cellular contents and vascular water that was in the fresh biomass that will be defined as press water or u201c juice u201d see fig3 part 2 h the next step is to subject the batt material to a phased multi wash solvent system the solvent of preferable use in the methodology is hexane however other non polar solvent solutions can be used in this process the multi wash solvent system also is conducive to multiple types of solvent solutions if a sequentially selected removal of hydrocarbon oil constituents is desired the multi phase wash system is defined by a continuous system of washing solvent through the mat to where a gradient of solvent oil mixture is achieved the preferable method would be to use gravity however other systems using pressure and mechanical forces could be used to achieve a similar effect the solvent oil gradient is crucial to this aspect of the invention as this allows for the most economical level of solvent to be used to extract the oil this correlates with lower volumes of solvent needed to extract.