more specifically this invention relates to an integral hydrocarbon recovery unit that is comprised of an evaporation system and a condensation system the actual first evaporation system includes a means for supplying the material to be extracted that includes means for controlling the supply means for conveying said material treatment chamber means including means for internal cleaning means for heating the material means for increasing the heat transfer area means for removing excess material including means for increasing hermeticity and means for conveying the extracted vapors towards the condensation system to further clarify the invention and its advantages compared with the known art following is a description with the help of the attached drawings of possible forms of embodiment including but not limited to the application of said principles fig1 illustrates a schematic view of the evaporation means of the invention unit fig2 corresponds to a schematic view of the means for controlling supply fig3 corresponds to a schematic view of the means for internally cleaning the cylinder fig4 corresponds to an isometric view of the means for increasing the heat transfer area in a first situation fig5 corresponds to a lateral view of fig4 of the means for increasing the heat transfer area in a first situation fig6 corresponds to an isometric view of the means for increasing the heat transfer area in a second situation fig7 corresponds to a lateral view of fig6 of the means for increasing the heat transfer area in a second situation fig8 corresponds to.