Optimisation Strategies for Coalbed Methane Extraction and Utilisation Based on Economic and Environmental Equilibrium, Under Carbon Trading Mechanism

In the context of carbon peaking and carbon neutralization, China has undertaken the task of carbon emission reduction. The exploitation and utilization of coalbed methane can reduce the carbon emission of the industry supplement the energy structure and reduce the mining risk. The coal-bed methane enterprises and power plants are closely related and there are related interests. However, due to the game relationship between the buyer and the seller on the price of coalbed methane, some decision-making conflicts are caused. In the actual operation process, enterprises should consider the complex relationship between multiple subjects. Thus, this paper constructs a bi-level multi-objective programming model to describe the complex relationship. In order to obtain the optimal solution of the model, the double-layer model is transformed into a single-layer model according to the Karush-Kuhn-Tucher (KKT) condition of the lower model. \(\epsilon \) - constraint method transforms the upper multi-objective optimization problem into a single objective optimization problem. Through the example analysis to verify the rationality and effectiveness of the model, it is concluded coalbed methane enterprise should reasonably apply \(CO_{2}\) -ECBM technology to vigorously exploit coalbed methane, and power plants should actively remove coal and reduce coal and expand the scale of coalbed methane power generation.