The H2S Corrosion Effect On The Stationary Turbine Blade

Thomas Agus Bayu Prasetyo,Ova Kurniawan,Sunardi Sunardi,Hamdan Akbar Notonegoro

doi:10.36055/fwl.v0i0.11213

Thomas Agus Bayu Prasetyo, Ova Kurniawan + Show 2 more

Open Access

https://doi.org/10.36055/fwl.v0i0.11213

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Abstract

The Geothermal fluids were disturbed by volcanic gas sulfide deposit reactions which form by reaction of metal(s) with H2S. this sulfate acid is one of the most corrosive compounds in the steam which lead the pitting, stress corrosion cracking and other corrosion mechanisms. An optical microscope, XRF dan X-ray diffraction is used to observe the sediment samples that came from stationary blades. The results show that it mainly consists of 89.7%wt iron sulfide (FeS) and 10.3%wt arsenic trisulfide (As2S3). This phase is toxic by inhalation and ingestion. Downstream steam pipeline treatment is required to reduce sulfide carried away into steam turbines such as scrubbing or washing steam. For this reason, special handling is needed for the toxic waste resulting from washing.

Highlights

Darajat is one of the largest vapor-dominated geothermal fields globally, with a current total capacity of 271 MWe, accommodated by three power plants [1,2]. This power plan is located in West Java, Indonesia the location is 150 km from Jakarta and is at an altitude of 1750 m above sea level. This geothermal energy is relatively environmentally friendly. the heat it generates converts the water that enters the earth into pressurized steam which can be used to drive power generation turbines
The cost required to build geothermal power plants is more expensive than building power plants that use fossil fuels
After starting operations, the cost of producing electricity is cheaper than the cost of producing electricity from fossil fuel power plants

Summary

Introduction

Darajat is one of the largest vapor-dominated geothermal fields globally, with a current total capacity of 271 MWe, accommodated by three power plants [1,2]. This power plan is located in West Java, Indonesia the location is 150 km from Jakarta and is at an altitude of 1750 m above sea level. The steam generated by geothermal descends bringing other particles from within the earth. This is caused by the interaction between the water that goes into the bowels of the earth with rocks and magma. The content is divided into rock-forming constituents, e.g., Si, Al, Na, K, Ca, Mg, Fe, Mn, and incompatible constituents, e.g., Cl, B, Br [3]

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