NOVELTY - Apparatus comprises a source of carbonaceous fuel chunks containing volatile matter; a steam boiler (88) source of superheated steam; a receiver of de-volatilized coke chunks; a receiver of steam and volatile matter; a sealable, and preferably insulated, pressure vessel de-volatilization reactor chamber (11) containing a refuel end and a coke removal end; refuel transfer unit; coke removal transfer unit; a steam inlet pipe with steam inlet valve; a steam outlet pipe with steam outlet valve; carbonaceous fuel control and actuator unit; and steam control and actuator unit (127).    USE - As an apparatus for separating carbonaceous fuels such as coal and biomass into at least two separated fuel products, a de-volatilized coke product, and volatile matter products (claimed) used as fuel source, for electric power generation, surface transport industries such as railroad locomotive diesel engines, tug and barge diesel engines, open cast mine shovels, trucks and draglines, cargo ships, farm tractor and harvester diesel engines, long haul highway trucks; and in commercial and military transportation applications.    ADVANTAGE - The apparatus avoids need of coke quenching; and replaces expensive petroleum distillate fuels, with fuels derived from low cost coal and non food farm harvest biomass.    DETAILED DESCRIPTION - Apparatus for separating carbonaceous fuels, such as coal and biomass, into at least two separated fuel products, a de-volatilized coke product, and volatile matter products, comprises a source of carbonaceous fuel chunks containing volatile matter; a steam boiler (88) source of superheated steam at a steam boiler pressure; a receiver of de-volatilized coke chunks; a receiver of steam and volatile matter at a receiver pressure less than the steam supply pressure; a sealable, and preferably insulated, pressure vessel de-volatilization reactor chamber (11) containing a refuel end and a coke removal end, and further comprises refuel transfer unit for intermittently, and sealably, transferring a single refuel batch of carbonaceous fuel chunks, from the source of carbonaceous fuel chunks, into the refuel end of the de-volatilization reactor chamber; coke removal transfer unit for intermittently and sealably transferring, a single batch of de-volatilized coke chunks, from the coke removal end of the de-volatilization chamber, into the receiver of de-volatilized coke chunks; a steam inlet pipe with steam inlet valve for transferring superheated steam, from the source of superheated steam, into the coke removal end of the de-volatilization reactor chamber, at steam boiler pressure; a steam outlet pipe with steam outlet valve for transferring steam and volatile matter, from the refuel end of the de-volatilization reactor chamber, into the receiver of steam and volatile matter, at receiver pressure; carbonaceous fuel control and actuator unit for operating the refuel transfer unit, and the coke removal transfer means, intermittently at refuel time intervals, so that the de-volatilization reactor chamber is maintained essentially filled with a number of batches of carbonaceous fuel chunks; and steam control and actuator unit (127) for opening and closing the steam inlet valve. An INDEPENDENT CLAIM is included for dividing a batch of carbonaceous fuel chunks such as coal or biomass fuel into a de-volatilized solid coke product, and a separated volatile matter product, involving placing the batch of carbonaceous fuel inside a pressure vessel chamber; applying a compression and release steam cycle to the batch of carbonaceous fuel chunks, by compressing superheated steam into the batch of carbonaceous fuel chunks, up to a compression pressure, followed by discharging steam and a separated volatile matter batch together out of the batch of carbonaceous fuel chunks, down to a discharge pressure less than the compression pressure; compressing superheated steam into the interchunk spaces and pore spaces of the carbonaceous fuel chunks during each steam compression, and heat is transferred rapidly into the carbonaceous fuel chunks, by direct contact, over pore and interchunk areas, between steam and carbonaceous fuel chunks, to increase its temperature, where as carbonaceous fuel temperature is thusly increased the volatile matter portions become vaporized and liquefied and thermally cracked, and are forced out of the carbonaceous fuel chunks by such vaporization, and are mixed into the steam, thus creating additional pore spaces in the carbonaceous fuel chunks; and discharging volatile matter batch, forced out of the carbonaceous fuel chunks and mixed into the steam, from the pressure vessel chamber during the steam release portion of each steam cycle, and is thus separated from each carbonaceous fuel batch; repeating the compression and release steam cycle several times on each the batch of carbonaceous fuel chunks; and separating additional volatile matter batches from each batch of carbonaceous fuel chunks, during each of the several repeated steam cycles; where each batch of carbonaceous fuel chunks is separated into a solid de-volatilized coke product and several batches of volatile matter product mixed into steam and removed from the de-volatilized coke product.    DESCRIPTION OF DRAWING(S) - The figure shows view of diagram of coal and biomass de-volatilization apparatus.    De-volatilization reactor chamber (11)    Superheated steam pipe (12)    Steam inlet valve (13)    Steam boiler (88)    Steam control and actuator unit (127)