NOVELTY - The three-train catalytic gasification system comprises reactor units, catalyst loading units, carbonaceous material processing units, heat exchanger units, acid gas remover units (500), methane removal units (600), and steam sources (700). The gasifying reactor unit independently comprises: a reaction chamber in which a catalyzed carbonaceous feedstock and steam are converted to gaseous products, unreacted carbonaceous fines and a solid char product; a feed inlet to supply the catalyzed carbonaceous feedstock into the chamber; and a steam inlet to supply steam into the reaction chamber.    USE - The three-train catalytic gasification system is useful for producing a product stream of pipeline-quality natural gas (claimed) e.g. methane from a catalyzed carbonaceous feedstock such as biomass, coal and petroleum coke.    ADVANTAGE - The three-train catalytic gasification system is capable of energy efficiently and economically generating the gases from the catalyzed carbonaceous feedstock with high throughput, and minimizes the losses in overall production capacities of gaseous products.    DETAILED DESCRIPTION - The three-train catalytic gasification system comprises reactor units, catalyst loading units, carbonaceous material processing units, heat exchanger units, acid gas remover units (500), methane removal units (600), and steam sources (700). Each gasifying reactor unit independently comprises: a reaction chamber in which a catalyzed carbonaceous feedstock and steam are converted to gaseous products, unreacted carbonaceous fines and a solid char product; a feed inlet to supply the catalyzed carbonaceous feedstock into the chamber; a steam inlet to supply steam into the reaction chamber; a hot gas outlet to exhaust a hot first gas stream out of the reaction chamber; a char outlet to withdraw the solid char product from the reaction chamber; and fines remover unit to remove unreacted carbonaceous fines that are entrained in the hot first gas stream. The first, second and third catalyst loading units are arranged to supply a carbonaceous feedstock (10) to feed inlets of the gasifying reactor units. The acid gas remover unit, the acid gas remover units, the first and second acid gas remover units, the acid gas remover unit, the first and second acid gas remover units, or the first, second and third acid gas remover units are arranged: to remove carbon dioxide and hydrogen sulfide from the cooled first gas stream and to produce acid gas-depleted gas streams; to remove the carbon dioxide and hydrogen sulfide from the first and second cooled first gas streams and to produce acid gas-depleted gas streams; to remove the carbon dioxide and hydrogen sulfide from the first and second cooled first gas streams and to produce first and second acid gas-depleted gas streams; to remove carbon dioxide and hydrogen sulfide from the first, second and third cooled gas streams and to produce acid gas-depleted gas streams; to remove the carbon dioxide and hydrogen sulfide from the first, second and third cooled first gas streams and to produce first and second acid gas-depleted gas streams; or to remove the carbon dioxide and hydrogen sulfide from the first, second and third cooled first gas streams and to produce first, second and a third acid gas-depleted gas streams, when only the single heat exchanger unit is present, or the first and second heat exchanger units are present, or the first, second and third heat exchanger units are present respectively. The hot first gas stream comprises gaseous products. Each catalyst loading unit independently comprises a loading tank to receive carbonaceous particulates and to load catalyst onto the carbonaceous particulates to form the catalyzed carbonaceous feedstock, and a dryer to thermally treat the catalyzed carbonaceous feedstock to reduce moisture content. Each carbonaceous material processing unit comprises a unit to receive and store a carbonaceous material, and a grinder in communication with the receiver to grind the carbonaceous material into the carbonaceous particulates. The system further comprises: first, second and third trace contaminant removal units arranged between the first, second and third heat exchanger units and the acid gas remover unit to remove trace contaminants from the first, second and third cooled first gas streams respectively; a reformer unit to convert the single methane product stream into a syngas; a methane compressor unit to compress the methane product stream; a carbon dioxide recovery unit to separate and recover carbon dioxide removed by the single acid gas remover unit; a sulfur recovery unit to extract and recover sulfur from hydrogen sulfide removed by the single acid gas remover unit; first, second and third catalyst recovery units to extract and recover the entrained catalyst from the solid char product from the first, second and third gasifying reactor units and to recycle the recovered catalyst to the single catalyst loading unit respectively; a gas recycle loop to recycle the single methane-depleted gas stream to the first, second and third gasifying reactor units; a treatment unit to treat waste water generated by the system; a unit to superheat the steam in or from the single steam source; a steam turbine to generate electricity from the steam supplied by the single steam source; first, second and third sour shift units arranged between the first, second and third heat exchanger units and the single acid gas remover unit to convert carbon monoxide in the first, second and third cooled first gas streams to carbon dioxide respectively; and a trim methanator between an acid gas remover unit and a methane removal unit.    DESCRIPTION OF DRAWING(S) - The figure shows a flow diagrammatic view of a gasification system.    Carbonaceous Feedstock (10)    Carbonaceous particulate (20)    Acid gas removal unit (500)    Methane removal unit (600)    Steam source. (700)