随着近几年深海油气田的深入开发，含H2S油气越来越多。考虑生产人员的身体健康、环境保护以及设施防腐等方面的要求，处理H2S势在必行。相关系统和工艺在国内海上设施未有应用前例，可靠性和适应性有待验证，尤其是在晃动方向较随机的圆筒形FPSO中。在圆筒型FPSO中，首次应用OR-GREEN硫磺回收系统。在海上大风浪、FPSO晃动剧烈的情况下，OR-GREEN硫磺回收系统的油气处理反应器也会随之晃动，有可能造成反应器内的气液两相流偏流，影响反应与传质时间，进而影响天然气脱硫处理效果。本文用ANSYS Fluent软件模拟了风浪条件下反应器内的气液两相流。通过模拟，验证了设计的结构在一年一遇的风浪条件下，不会影响系统的正常运行，设计的OR-GREEN系统可以抵御一年一遇的风浪。

With the in-depth development of deep-sea oil and gas fields in recent years, there are more and more H2S-containing oil and gas. Considering the requirements of health of production personnel, environmental protection and corrosion protection of facilities, it is imperative to deal with H2S. The relevant system and process have not been used in domestic offshore facilities before, and the reliability and adaptability need to be verified, especially in cylindrical FPSO with random shaking direction. 
The OR-GREEN sulfur recovery system was used for the first time in a cylindrical FPSO. In the case of strong wind and waves at sea and severe swaying of FPSO, the oil-gas treatment reactor of OR-GREEN sulfur recovery system will also sway, which may cause the gas-liquid two-phase flow bias in the reactor, affect the reaction and mass transfer time, and further affect the effect of natural gas desulfurization treatment. In this paper, the gas-liquid two-phase flow in a reactor under wind and wave conditions is simulated by Ansys Fluent software. Through simulation, it is verified that the designed structure will not affect the normal operation of the system under the once-a-year wind and wave conditions, and the designed OR-GREEN system can resist the once-a-year wind and wave conditions.