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中文摘要：
整体煤气化联合循环（IGcc）是最有前景的清洁煤发电技术之一，但由于经济性和操作灵活性的不足，其发展受到了限制．将IGCC系统与甲醇合成系统耦合，通过联产甲醇可以提高系统的负荷调节能力，同时改善IGCC电站的经济性．以实际案例定量地分析了保持联产系统气化单元满负荷运行时，调节合成气在化工单元和电力单元的分配来调节电力负荷的能力．结果表明：通过设计合成单元设备容量盈余，可以实现保持气化炉运行工况不变而改变电力输出负荷；而联产甲醇增强了煤气化发电的操作灵活性．
英文摘要：
Integrated gasification combined cycle （IGCC） is considered one of the most promising clean coal technologies for power generation. But its development is limited by high cost and complicated operation. The load modulation capability of IGCC systems can be improved by coproducing methanol which is obtained by coupling IGCC systems with methanol synthesis systems. Meanwhile, the operational economy of IGCC power plant can be improved as well. The load modulation capability, governed by supplying syngas to chemical industry and power units, has been investigated through quantitative analysis of actual cases gasification units of the cogeneration system is kept in full load operation. Results indicate that, by providing capacity allowance when designing facilities of synthesis units, a change of power output can be achieved with the operation condition of gasifier kept the constant. Operationing flexibility of gasification power has been enhanced by coproducing methanol.
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