Correction to: Brazilian Journal of Chemical Engineering https://doi.org/10.1007/s43153-020-00079-x

Dear readers,

In the original publication of this article the author noticed an important correction.

In Eq. 10a, the index of the second sum appeared before the sum symbol instead of under it:

$$\mathop {\min }\limits_{{{\mathbf{\Delta }}\user2{u}}} \sum\limits_{{i = 1}}^{p} {\left\| {\user2{y}_{{k + i}} - \user2{y}_{{k + i}}^{{rt}} } \right\|_{{\user2{W}_{\user2{y}} }}^{2} ~ + } \sum\limits_{{i = 0}}^{{m - 1}} {\left[ {\left\| {\user2{u}_{{k + i}} - \user2{u}_{{k + i}}^{{rt}} } \right\|_{{\user2{W}_{\user2{u}} }}^{2} + \left\| {{\mathbf{\Delta }}\user2{u}_{{k + i}} } \right\|_{{\user2{W}_{{{\mathbf{\Delta }}\user2{u}}} }}^{2} } \right]}$$
(10a)

We apologize for this error.