Modular pulse jet fabric filter

A pulse jet fabric filter (PJFF) for a power plant having a furnace producing exhaust gas, comprising:

• a plurality of compartments, each compartment comprising opposed outer walls and opposed side walls enclosing a plurality of filter bags for removing particulates from the exhaust gas, each compartment further comprising a hopper for collecting and removing the particulates from the compartment;
• a first compartment comprising modular quarter sections, wherein each of the modular quarter sections of the first compartment comprises a portion of an outer wall and a portion of an adjacent side wall, wherein adjacent modular quarter sections are bolted and field welded to each other along an edge such that each of the outer and side walls of the first compartment comprises a portion of an outer or side wall from a first quarter section and a portion of an outer or side wall from a second quarter section,
• wherein each quarter section comprises a corner separate from the edge, wherein the corner comprises a shop weld.