碳达峰碳中和目标下国内天然气净化厂运行现状与展望

Current status and prospect of domestic natural gas purification plants under the target of carbon peaking and carbon neutralization

关键词:  碳达峰  碳中和  天然气净化  碳捕集、利用与封存  绿色能源拓展 

Key words:  carbon peaking  carbon neutralization  natural gas purification  carbon capture  utilization  and storage (CCUS)  green energy expansion

摘要:

天然气是低碳清洁能源,在我国实现碳达峰、碳中和时代背景下的需求日益增长,天然气净化作为常规气田开发的重要环节,天然气净化装置的优化运行、节能减排及绿色能源业务拓展等对促进天然气增产和行业绿色低碳发展具有重要意义。以国内起步最早、规模最大、工艺技术先进、综合配套齐全、自动化程度高的中国石油西南油气田公司天然气净化总厂为例,分析了现有装置的运行现状和面临产品气质量指标难控制、运行成本增加的挑战,结合国家碳达峰、碳中和的目标,给出了如何提升处理量、完善新兴技术、持续节能减排、革新控制系统和开展碳捕集、利用与封存及绿色能源业务拓展的具体方向和建议。

Abstract:

Natural gas is a low-carbon and clean energy, and the demand is growing under the background of achieving carbon peaking and carbon neutralization in China. Natural gas purification is an important part of the development of conventional gas fields. The optimal operation of natural gas purification device, energy conservation and emission reduction, and green energy business expansion are of great significance for promoting natural gas production and green and low-carbon development of the industry. Taking the natural gas purification plants of PetroChina Southwest Oil & Gasfield Company, which is the earliest in China, the largest in scale, advanced in process technology, fully equipped and highly automated, as an example, the operating status of the existing units and the challenges facing the difficult control of product gas quality indicators and rising operating costs were analyzed. In combination with the goals of carbon peaking and carbon neutralization, this paper gives the specific directions and suggestions on how to increase processing capacity, improve emerging technologies, continue energy conservation and emission reduction, innovate control systems and carry out carbon capture, utilization and storage and green energy business expansion.