摘要
分析了中国石化集团北京燕山石油化工有限公司蒸汽系统布局分散、燃料种类多、燃动成本增加明显、机炉运行效能低、自用损耗高等问题的原因,提出并实施天然气系统提压改造、用能结构调整、用能成本降低、产汽品质及设备效能提高等优化提升措施。结果表明:与2018年相比,2021年燃料消耗减少燃用煤焦550 kt,增用天然气170 kt,增用燃料气和燃料油共50 kt,折合减少标准煤246 kt;增加外购电量约5×10^(8)kW·h;开展绿电交易和14.76 MW分布式光伏项目,按照二类光伏地区年发电1 400~1 600 h和华北区域电网基准线排放因子核算,年减排约55 kt二氧化碳。实施上述改造后,实现煤焦清零,同比装置用汽量降低21.5%,锅炉产汽量减少24.9%,实现年减排约760 kt二氧化碳,取得了较好效果。
This paper analyzes the main problems of decentralized steam system layout, many types of fuels, obvious increase in fuel cost, low operation efficiency of turbine and boiler and high self consumption loss of SINOPEC Beijing yanshan Petrochemical Co.,Ltd., and puts forward and implements optimization and improvement measures such as pressure raising transformation of natural gas system, adjustment of energy consumption structure, reduction of energy consumption cost, improvement of steam production quality and equipment efficiency. The results show that compared with the fuel consumption in 2018, the consumption of coal coke will be reduced by 550,000 t, the consumption of natural gas will be increased by 170,000 t, and the total consumption of fuel gas and fuel oil will be increased by 50,000 t, equivalent to 246,000 t of standard coal;Increase purchased electricity by about 5×10^(8)kW·h;Green power trading and 14.76 MW distributed photovoltaic projects are carried out. According to the calculation of 1 400~1 600 h annual power generation in class Ⅱ photovoltaic areas and the emission factor of North China regional power grid baseline, the annual emission reduction is about 55,000 t carbon dioxide in 2021. After the above transformation, the goal of zero-coking is achieved, the steam consumption of the unit is reduced by 21.5%, the steam production of the boiler is reduced by 24.9%, and the annual emission reduction of about 760,000 t carbon dioxide is achieved, which has achieved good results.
作者
高建新
Gao Jianxin(SINOPEC Beijing Yanshan Petrochemical Co.,Ltd.,Power plant,Beijing 102500)
出处
《炼油技术与工程》
CAS
2022年第5期55-59,共5页
Petroleum Refinery Engineering
关键词
蒸汽系统
燃料结构
用能结构
设备效能
蒸汽损耗
优化
节能
降碳
steam system
fuel structure
energy structure
equipment efficiency
steam loss
optimization
energy saving
carbon reduction
