Technology - 27/March/2019

Methane sequestered and waste heat put to work

Germany is testing whether a nitrate salt thermal storage system could aid the provision of process steam for industry while earning subsidies for capturing emissions of methane, a potent greenhouse gas, and combusting it for energy supply

A combined heat and power station in Germany is exploring the business viability of a nitrate salt thermal storage system that supports the provision of process steam to industry while earning subsidies for capturing emissions of methane, a potent greenhouse gas, and combusting it for energy supply


Industrial steam: The temperature of steam used to drive turbines for electricity is neither high enough nor sufficiently stable for use in industrial processes that need super-hot steam in a continuous flow

Experiment: Can a nitrate salt thermal energy storage system charged with waste heat from the combustion of methane replace one of two boilers that supply super-hot steam derived from burning natural gas

Deciding factor: The real test will be whether the value of the system’s fuel savings and greenhouse gas reductions from burning less natural gas is greater than the cost of the thermal salt storage ...

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