NOVELTY - A gasification system has gasification reactors (a-d) (301-304), a single catalyst loading unit, a single heat exchanger unit, heat exchanger units (h1-h4) (401-404) to remove heat energy from the hot gas streams (i) from the gasifying reactor unit (a-d), a single methane removal unit (600) and a single steam source.    USE - Gasification system is used for production of pipeline-quality natural gas (claimed) from carbonaceous feedstock such as biomass, coal and petroleum coke.    ADVANTAGE - The gasification system has excellent durability, and produces gaseous products efficiently.    DETAILED DESCRIPTION - A gasification system has gasification reactors (a-d), a single catalyst loading unit to supply catalyzed carbonaceous feedstock to feed inlets of gasification reactors (a-d), catalyst loading units (c1,c2) to supply catalyzed carbonaceous feedstock to feed inlets of gasification reactors (a-d), catalyst loading units (c1-c3) to supply the catalyzed carbonaceous feedstock to feed inlets of gasification reactors (a-d) or catalyst loading unit (c1-c4) (201-204) to supply catalyzed carbonaceous feedstock to the feed inlets of gasification reactors (a-d), a single heat exchanger unit to remove heat energy from hot gas streams (i) from gasification reactors (a-d) to generate steam and produce a single cooled gas stream (g1), heat exchanger units (h1,h2) to remove heat energy from hot gas streams (i) to generate steam and a cooled gas streams (g1,g2), or heat exchanger units (h1-h4) to remove heat energy from hot gas streams (i) to generate steam and produce cooled gas streams (g1-g4), a single methane removal unit to separate and recover methane from single acid gas-depleted gas stream, to produce a single methane-depleted gas stream and a single methane product stream, and a single steam source to supply steam to the steam inlets of gasification reactors (a-d) or steam sources (s1,s2) to supply stream to the steam inlets of gasification reactors (a-d). The gasifying reactor unit has a reaction chamber in which a catalyzed carbonaceous feedstock and steam are converted to gaseous products of methane, hydrogen, carbon monoxide, carbon dioxide, hydrogen sulfide and unreacted steam, unreacted carbonaceous fines and a solid char product of entrained catalyst, a feed inlet to supply the catalyzed carbonaceous feedstock into reaction chamber, a steam inlet to supply steam into reaction chamber, a hot gas outlet to exhaust hot gas stream (i) of gaseous products, a char outlet to withdraw solid char product from reaction chamber and a fines remover unit to remove a substantial portion(s) of the unreacted carbonaceous fines entrained in hot gas stream (i). The catalyst loading unit has a loading tank to receive carbonaceous particulates and to load catalyst onto particulates to form catalyzed carbonaceous feedstock and a dryer to thermally treat catalyzed carbonaceous feedstock to reduce moisture content. When only the single catalyst loading unit is present, a single carbonaceous material processing unit to supply carbonaceous particulates to the loading tank of the single catalyst loading unit is provided to system, when only catalyst loading units (c1 and c2) are present, a single carbonaceous material processing unit to supply carbonaceous particulates to loading tanks of the catalyst loading units (c1 and c2), or carbonaceous material processing units (m1 and m2) to supply carbonaceous particulates to loading tanks of the catalyst loading units (c1 and c2) is provided to system, when only the catalyst loading units (c1-c3) are present, a single carbonaceous material processing unit to supply carbonaceous particulates to loading tanks of the catalyst loading units (c1-c3), carbonaceous material processing units (m1 and m2) to supply the carbonaceous particulates to the loading tanks of the catalyst loading units (c1-c3) or carbonaceous material processing units (m1-m3) to supply carbonaceous particulates to the loading tanks of catalyst loading units (c1 and c2) is provided to system, or when the catalyst loading units (c1-c4) are present, a single carbonaceous material processing unit to supply carbonaceous particulates to the loading tanks of catalyst loading units (c1, c2, c3 and c4), carbonaceous material processing units (m1 and m2) to supply carbonaceous particulates to the loading tanks of catalyst loading units (c1, c2, c3 and c4), carbonaceous material processing units (m1, m2 and m3) to supply carbonaceous particulates to loading tanks of the catalyst loading units (c1, c2, c3 and c4), or carbonaceous material processing units (m1, m2, m3 and m4) to supply carbonaceous particulates to loading tanks of the catalyst loading units (c1, c2, c3 and c4) is provided to system. The single carbonaceous material processing unit has a receiver to receive and store carbonaceous material, and a grinder to grind carbonaceous material into carbonaceous particulates, and the grinder in communication with the receiver. When only the single heat exchanger unit is present, a single acid gas remover unit to remove a substantial portion(s) of carbon dioxide and a substantial portion(s) of the hydrogen sulfide from single cooled gas stream (b1) is provided to system, to produce a single acid gas-depleted gas stream comprising a substantial portion(s) of methane, a substantial portion(s) of hydrogen and optionally a portion(s) of carbon monoxide from single cooled gas stream (b1), or when only the heat exchanger units (h1 and h2) are present, a single acid gas remover unit to remove a substantial portion(s) of carbon dioxide and a substantial portion(s) of hydrogen sulfide from cooled gas streams (g1 and g2) to produce a single acid gas-depleted gas stream comprising a substantial portion(s) of methane, a substantial portion(s) of hydrogen and optionally a portion(s) of carbon monoxide from the cooled gas streams (g1 and g2) is provided to system, or when the heat exchanger units (h1, h2, h3 and h4) are present, a single acid gas remover unit to remove a substantial portion(s) of carbon dioxide and a substantial portion(s) of hydrogen sulfide from cooled gas streams (g1, g2, g3 and g4) to produce a single acid gas-depleted gas stream comprising a substantial portion(s) of methane, a substantial portion(s) of hydrogen and optionally a portion(s) of carbon monoxide from cooled gas streams (g1, g2, g3 and g4) is provided to system. The single methane product stream comprises a substantial portion(s) of methane from the single acid gas-depleted gas stream.    DESCRIPTION OF DRAWING(S) - The drawing shows the schematic view of the gasification system.    Catalyst loading units (201-204)    Gasification reactors (301-304)    Heat exchangers (401-404)    Acid gas removal unit (500)    Methane removal unit (600)