Due to the limitations of technical conditions and knowledge, at that time they didn't set low-grade heat recovery system in the process of acid.

由于受建设时期技术条件和认识的局限，其制酸装置的中、低温位余热回收不够完善。

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Measures of energy saving for carbon dioxide removal section in Xiangjiang nitrogenous fertilizer plant are introduced and compared with other lower grade heat recovery system.

介绍湘江氮肥厂脱碳节能措施，并与其他的低位热能回收系统进行了比较。

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