NOVELTY - A modified bio-slurry (S1) comprises: pyrolysis condensate, and a combustible that does not originate from pyrolysis of biomass.    USE - As a modified bio-slurry, which is useful for a gasification, in an integrated-gasification-combined-cycle (IGCC) plant that works with co-production of liquid fuels, IGCC plant that works without co-production of liquid fuels, biomass-to-liquids plant, or coal-to-liquids Plant (claimed).    ADVANTAGE - The modified bio-slurry includes pyrolysis condensate, and further a combustible that does not originate from pyrolysis of biomass. Since further combustible does not originate from pyrolysis of biomass, availability of the combustible does not depend on availability of biomass or on availability of products of pyrolysis of biomass. Addition of further combustible to the bio-slurry may lower the water content of the bio-slurry, and further increases heating value of the bio-slurry. Thus, the modified bio-slurry can be tailored to compensate variations of the heating value and the water content of a non-modified bio-slurry, and risk of feeding the gasifier suddenly only with pyrolysis condensate with a high water content may be reduced when gasifying the modified bio-slurry. Also the combustible or slurry that contains the combustible can be added in any amount to a bio-slurry in order to obtain modified bio-slurry. The process for gasification of the modified-bio-slurry may further comprise gasification of bio-slurry in gasifier prior to or after gasification of modified bio-slurry. A bio-slurry differs from modified-bio-slurry in that bio-slurry does not include combustible which does not originate from biomass and/or pyrolysis of biomass. Hence, gasification of modified bio-slurry allows continuous or discontinuous switching from gasification of bio-slurry to gasification of modified bio-slurry and vice versa and/or of at least one second modified bio-slurries and further to the gasification of coal-slurry and vice versa. Thus if biomass and accordingly slurries including pyrolysis condensate originating from pyrolysis of biomass are of only limited availability, process for gasification of modified bio-slurry allows the switching from gasification of a modified bio-slurry to gasification of a second modified bio-slurry having higher content of combustible which does not originate from biomass and lower content of pyrolysis condensate compared to the modified bio-slurry. This switching enables to compensate for the lower availability of biomass and of its derivates, like pyrolysis condensate and/or pyrolysis char. In case of an even lower availability of biomass and of its derivates, the gasification of a modified bio-slurry even allows to switch from gasification of modified bio-slurry to gasification of coal slurry. Since at least one second modified bio-slurries may differ only slightly in composition compared to the modified bio-slurry, continuous switching to second modified bio-slurries including increasing fractions of the combustible which does not originate from pyrolysis of biomass is possible. Hence, this process for gasification of a modified bio-slurry allows one to continuously switch from gasification of a bio-slurry via gasification of a modified bio-slurry and/or gasification of at least one second modified bio-slurries to gasification of a coal-slurry. In addition, gasification of modified bio-slurry allows varying the amount of the combustible which does not originate from pyrolysis of biomass with objective to compensate variations in composition and/or water content of modified bio-slurry.    DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for the following:    (1) process (P1) for gasification of the modified bio-slurry (S1) involving: injecting the modified bio-slurry (S1) into a gasifier, and gasifying the modified bio-slurry in the gasifier; and    (2) process (P2) for production of the modified bio-slurry (S1), involving: adding a combustible that does not originate from pyrolysis of biomass to a bio-slurry comprising pyrolysis condensate.    DESCRIPTION OF DRAWING(S) - The figure shows a flowchart of process for gasification of the modified bio-slurry.