碳排放履约下炼化企业热电机组运行调节优化研究

随着我国碳排放交易市场的建立，炼化企业自备电站作为重点排放单位将会纳入其中，其碳配额的分配方法采用基准线法。由于炼化企业自备电站生产的蒸汽和电力要满足炼化装置要求，因此需要经常进行运行调节，其对自备电站的碳排放履约会产生重要影响。通过建立汽轮机蒸汽-电转化模型预测不同抽汽量时的机组运行数据，以该数据为基础研究了供热负荷变化对机组配额量、碳排放量及配额缺口量的影响。采用某石化企业生产数据，分析了汽轮机恒进汽量和恒凝汽量运行调节对配额的影响：当供热量由179.2万GJ增加到287.5万GJ时，恒进汽量方式下，配额总量由376.76kt增加到434.68kt，恒凝汽量方式下配额总量由355.98kt增加到502.76kt，对指导企业生产运行具有重要意义。

OPTIMIZATION OF SELF-OWNED POWER STATION ADJUSTMENT IN PETROCHEMICAL PLANT UNDER CARBON EMISSION TRADING MARKET

With the establishment of China's carbon emission trading market，the self-owned power stations of refinery and petrochemical enterprises are included as key emission units，and the allocation method of carbon quota is calculated by the benchmark method. As the requirements of refineries demand for steam and power produced by the self-owned power stations need to meet firstly，it is necessary to adjust their operation regularly，which has an important impact on the carbon emission performance of the self-owned power stations. In this paper，the steam-electric conversion model of steam turbine was established to predict the operation data with different heating extraction capacity. Based on this data，the influence of heating extraction on carbon emission，emission allowance and the allowance gap were studied. Based on the production data of a petrochemical enterprise，the influence of constant inlet adjust mode and constant condensation adjust mode on the quota was analyzed. When the heat supply increased from 1.792×103 TJ to 2.875×103 TJ，the total quota increased from 376.76 kt to 434.68 kt under constant intake mode，and the total quota increased from 355.98 kt to 502.76 kt under constant condensation mode. It is of great significance to guide the production and operation of enterprises.