阅读说明：本技术 用于具有多种产物的分隔壁塔和双分隔壁塔的先进过程控制方案 (Advanced process control scheme for divided wall and double divided wall columns with multiple products ) 是由 R·皮什切克 P·德胡格 D·A·霍坎森 E·克鲁文 于 2019-08-20 设计创作，主要内容包括：提供用于改进在单个塔内包括一个或多个分隔壁的分离系统的过程控制的系统和方法。已经发现,通过基于能量平衡而非质量平衡控制分隔壁塔,可实现改进的过程控制。能量平衡可部分基于控制塔的第一分隔部分内的进料侧上的多个位置的温度进行。使用基于进料侧上的多个位置的温度控制的能量平衡可促进分隔壁塔的运行保持在单一的相空间区域内,所述相空间可合适地近似为线性模型。这可允许常规过程控制器管理操纵变量和被控变量。除控制进料侧上的多个位置的温度外,还可使用多个其它特征作为操纵变量或被控变量。任选地,多变量控制器可用于提供塔的进一步改进的控制。(Systems and methods are provided for improving process control of a separation system including one or more dividing walls within a single column. It has been found that by controlling the dividing wall column based on energy balance rather than mass balance, improved process control can be achieved. The energy balance may be based in part on controlling the temperature at a plurality of locations on the feed side within the first divided portion of the column. The use of energy balance based on temperature control at multiple locations on the feed side can facilitate maintaining operation of the divided wall column within a single phase space region, which can be suitably approximated as a linear model. This may allow a conventional process controller to manage manipulated and controlled variables. In addition to controlling the temperature at various locations on the feed side, various other characteristics may be used as manipulated or controlled variables. Optionally, a multivariable controller may be used to provide further improved control of the column.)