Antifouling and anticorrosion behaviors of modified heat transfer surfaces with coatings in simulated hot-dry-rock geothermal water

Preparation and anti-coking application of sol–gel SiO2 coating in a delayed coking furnace

“…On the inner surface of the heating furnace tubes, the surface roughness an important factor that affects the transportation, adhesion, and removal of coke. 40,41 The surface roughness of the uncoated sample after pre-treatment with 400–2000 grit sandpaper ( Fig. 9a ) and that of the coated sample after heat treatment at 550 °C ( Fig.…”

The situation analysis of hot dry rock geothermal energy development in China-based on structural equation modeling

“…Water is not only a highly polar solvent, but also easy to react with chemicals in rocks, forming sediments and other substances, blocking pipelines and limiting the efficient utilization of geothermal resources [ 42 , 43 ].…”

A novel and efficient CaCO3 scale inhibitor in high‐temperature and high‐salinity geothermal systems: A deprotonated quadripolymer

“…At a certain pH (6.9-8.8), middle temperature (100 C-120 C), calcium carbonate (CaCO 3 ) is oversaturated, resulting in scaling in plant surface equipment, reinjection lines and wells, and becomes the main scale component. [2][3][4] This will cause increasing operating costs and a reduction in geothermal power. 5 To prevent the precipitation of CaCO 3 , adding scale inhibitors is an effective method in EGSs.…”

“…At the mid‐temperature of an EGS, scaling often occurs. At a certain pH (6.9–8.8), middle temperature (100°C–120°C), calcium carbonate (CaCO 3 ) is oversaturated, resulting in scaling in plant surface equipment, reinjection lines and wells, and becomes the main scale component 2–4 . This will cause increasing operating costs and a reduction in geothermal power 5 .…”