What is HTHA?

HTHA stands for High Temperature Hydrogen Attack, which is a degradation mechanism that affects steels exposed to hydrogen at elevated temperatures and pressures. HTHA can cause cracking and failure of the steel, especially in welds and stressed areas¹. HTHA occurs when atomic hydrogen penetrates the steel and reacts with the carbon present to form methane … More What is HTHA?

High Temperature Hydrogen Attack for energy underwriters.

High Temperature Hydrogen Attack (HTHA) is a critical concern in the energy industry, particularly for underwriters assessing risk in facilities that handle high-pressure hydrogen-containing environments, such as refineries and petrochemical plants. HTHA occurs when hydrogen atoms diffuse into the steel structure of equipment, causing severe damage over time. This phenomenon is of utmost importance for … More High Temperature Hydrogen Attack for energy underwriters.

Phased Conversion of Combined Cycle Power Plants: Harnessing the Power of Hydrogen and Natural Gas

Introduction As engineers, we constantly seek innovative solutions to enhance the efficiency and sustainability of power generation. One compelling avenue is the phased conversion of combined cycle power plants to utilize a blend of hydrogen and natural gas. This approach not only capitalizes on the benefits of both fuels but also ensures a seamless transition … More Phased Conversion of Combined Cycle Power Plants: Harnessing the Power of Hydrogen and Natural Gas