System and method for blending hydrogen gas

A method of blending hydrogen gas with natural gas to produce a consistent stream of usable fuel, the method comprising the steps of:

• providing a movable modular system for blending hydrogen gas to produce a consistent stream of usable fuel, the system comprising:
• a system of detachably connected pipe segments for transporting and blending hydrogen gas and natural gas, the system of detachably connected pipe segments having at least one inlet for receiving natural gas from a natural gas source, at least one inlet for receiving hydrogen gas from a hydrogen gas source, and at least one outlet for producing a consistent stream of usable fuel comprising a consistent blend of natural gas to hydrogen gas;
• a programmable logic system controller having a display screen and control panel, the programmable logic system controller detachably connected to the system of detachably connected pipe segments, the programmable logic system controller programmed for providing customizable, modular, pre-programmed and custom programmed settings for automatically and selectively controlling real-time active flow of natural gas and hydrogen gas and for blending hydrogen gas with natural gas at the consistent blend of natural gas to hydrogen gas to produce the consistent stream of usable fuel;
• a hydrogen gas flow control valve controlled by the programmable logic system controller, the hydrogen gas flow control valve detachably connected to the system of detachably connected pipe segments and configured for regulating hydrogen gas flow;
• a natural gas pressure control valve controlled by the programmable logic system controller, the natural gas pressure control valve detachably connected to the system of detachably connected pipe segments and configured for regulating natural gas pressure to a pre-set value;
• one or more precision flow meters in communication with the programmable logic system controller, the precision flow meters detachably connected to the system of detachably connected pipe segments, the precision flow meters for measuring mass flow of natural gas and mass flow of hydrogen gas and communicating data to the programmable logic system controller;
• an inlet pressure regulator detachably connected to the system of detachably connected pipe segments, the inlet pressure regulator for regulating inlet natural gas pressure and inlet hydrogen gas pressure;
• and
• a hydrogen analyzer controlled by the programmable logic system controller, the hydrogen analyzer detachably connected to the system of detachably connected pipe segments, the hydrogen analyzer for measuring hydrogen concentration;
• opening the natural gas pressure control valve from the programmable logic system controller of the movable modular system and maintaining a constant set discharge pressure on the programmable logic system controller of the movable modular system;
• calibrating the hydrogen analyzer and setting the hydrogen analyzer flow control loop on the programmable logic system controller based on daily natural gas composition;
• confirming on the programmable logic system controller that constant natural gas discharge pressure and flowrate is achieved so that the movable modular system is ready for hydrogen injection and blending;
• selecting a blend percentage of hydrogen gas and natural gas on the programmable logic system controller;
• opening the hydrogen gas flow control valve from the programmable logic system controller and activating the hydrogen analyzer flow control loop on the programmable logic system controller;
• once the hydrogen flow stabilizes, confirming on the programmable logic system controller the blend of hydrogen gas to natural gas from the hydrogen analyzer;
• and
• producing from the movable modular system a consistent stream of usable fuel at the consistent blend of natural gas to hydrogen gas.