Abstract
Currently, offshore areas have become the hotspot of global gas and oil production. They have significant reserves and production potential. Offshore platforms are energy-intensive facilities. Most of them are equipped with gas turbine engines. Many technologies are used to improve their thermal efficiency. Thermochemical recuperation is investigated in this paper. Much previous research has been restricted to analyzing of the thermodynamic potential of the chemically recuperated gas turbine cycle. However, little work has discussed the operation issues of this cycle. The analysis of actual fuel gases for the steam reforming process taking into account the actual load of gas turbines, the impact of steam reforming on the Wobbe index, and the impact of a steam-fuel reforming process on the carbon dioxide emissions is the novelty of this study. The obtained simulation results showed that gas turbine engine efficiency improved by 8.1 to 9.35% at 100% load, and carbon dioxide emissions decreased by 10% compared to a conventional cycle. A decrease in load leads to a deterioration in the energy and environmental efficiency of chemically recuperated gas turbines.
Highlights
We demonstrated a method for increasing the efficiency of gas turbine this paper, wedemonstrated demonstrated amethod methodusing forincreasing increasing theefficiency efficiency gasturbine turbine engines forpaper, offshore energy supplyasystems a thermochemical recuperation stratInInthis we for the ofofgas engines for offshore energy supply systems using a thermochemical recuperation strategy
Recuperated gas turbines for powering offshore platforms were explored in this study and got the following results
Offshore platforms are primarily powered by gas turbines of 1 to 58 MW
Summary
In 2019, primary energy consumption was 583.9 exajoules. Oil extraction was 193.03 exajoules (or 33.06%). Natural gas extraction was 143.62 exajoules (or 24.60%). The extraction of liquid and gaseous hydrocarbon constituted 57.66% of the total primary energy production [1]. In the 21st century, over half of oil and gas deposits were in offshore areas [2]. Offshore oil and gas production is a valuable source of energy. It has a significant impact on the world economy. About 30% of oil and 25% of natural gas are produced from offshore fields. Their proven reserves are 36% and 46%, respectively [3]
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