摘要
针对中国海油珠海天然气液化装置在运行期间的分子筛再生气气量与燃气透平所需燃料气量不相匹配而导致多余再生气浪费的问题,在对分子筛两塔脱水工艺流程作了简要介绍的基础上,提出了3种解决再生气量与燃料气量不匹配的改造方案,即增设压缩机、增设分子筛塔及提高分子筛再生温度措施。通过分析对比,最终选用增设一台往复式压缩机对放空再生气回收方案,投入运行后多余的再生气得到回收利用,装置液化率提高了约5%,每年取得了较为可观的直接经济效益,并达到了节能减排的目的。
During an operation of molecular sieve, a LNG facility under CNOOC Zhuhai Company, the gas regeneration content didn't accord with fuel-gas content needed by gas turbine, which resulted in a waste of surplus gas regeneration. So, in this study, three modification schemes of installing a new compressor and a new molecular-sieve tower, and increasing regeneration temperature, are presented to solve this discordance. After that, these three schemes are analyzed and compared. Results show that one scheme of installing the new reciprocating compressor can cycle the surplus gas generation content and increase liquefied fraction by 5 %. Afterits application, we can not only obtain considerably direct economic benefits but also achieve the goal of saving energy and reducing emission.
出处
《天然气技术与经济》
2014年第2期57-59,79-80,共3页
Natural Gas Technology and Economy
