A process for controllably supplying a chemical agent to a flowing process fluid for effecting generation of treated flowing fluid comprising a chemical agent-derived fluid component material, wherein the chemical agent-derived fluid component material is derived from the chemical agent, wherein the controllably supplying comprises:
- while discharging a chemical agent from a chemical agent supply system, modulating distribution of the chemical agent that is being discharged, between at least a flowing process fluid and a fluid bypass, with a chemical agent supply modulation system, in accordance with a system operating cycle, wherein the system operating cycle includes a single system supply mode and a single system bypass mode, and wherein the system bypass mode follows the system supply mode, and wherein the system operating cycle is repeated at least once such that alternating is effected as between the system supply mode and the system bypass mode, and such that a corresponding plurality of occurrences of the system supply mode and a corresponding plurality of occurrences of the system bypass mode are provided;
- wherein, over the entire duration of the system supply mode, fluid communication between the chemical agent supply system and the flowing process fluid is being effected;
- and wherein, over the entire duration of the system bypass mode, fluid communication between the chemical agent supply system and the fluid bypass is being effected;
- and wherein the chemical agent supply modulation system includes a bypass fluid flow interference device and a fluid pressure-responsive scaling device;
- and wherein, over the entire duration of the system supply mode, the bypass fluid flow interference device is disposed in a supply mode condition, and over the entire duration of the system bypass mode, the bypass fluid flow interference device is disposed in a bypass mode condition;
- and wherein the bypass fluid flow interference device is disposed between the chemical agent supply system and the fluid bypass, and is configured for selectively interfering with fluid communication between the chemical agent supply system and a fluid bypass, and when disposed in the supply mode condition, the bypass fluid flow interference device is disposed so as to effect relatively more interference with fluid communication between the chemical agent supply system and the fluid bypass, than when disposed in the bypass mode condition;
- and wherein the fluid pressure-responsive sealing device is disposed between the chemical agent supply system and the flowing process fluid, and is urged by downstream fluid pressure, for effecting sealing, or substantial sealing, of the fluid communication between the chemical agent supply system and the flowing process fluid, and the fluid pressure-responsive sealing device is configured to effect the scaling, or substantial sealing, while fluid pressure upstream of the fluid pressure-responsive sealing device is failing to sufficiently exceed the downstream fluid pressure, wherein the downstream fluid pressure is being communicated by the flowing process fluid;
- and wherein the bypass fluid flow interference device and the fluid pressure-responsive sealing device are co-operatively configured such that, while the chemical agent supply system is pressurizing the chemical agent upstream of both of the bypass fluid flow interference device and the fluid pressure-responsive scaling device, the fluid pressure upstream of the fluid pressure-responsive sealing device, which opposes the downstream fluid pressure that is urging the fluid pressure-responsive sealing device to effect sealing, or substantial scaling, of the fluid communication between the chemical agent supply system and the flowing process fluid, is responsive to the degree of interference being effected, to the fluid communication between the chemical agent supply system and the fluid bypass, by the bypass fluid flow interference device.