For a four-component feed, Kaibel (1987) proposed a single dividing wall column (DWC) with two side-streams. We will show that an analytic minimal energy expression for the Kaibel-arrangement is straightforward to deduce based on the methods presented by Halvorsen (2001). The expression is very similar to the expression for the 3-product Petlyuk column. Minimum energy for the generalized nprodu...

The distillation process remains as the most common method ofseparation in chemical process industries. The energy used from this process accounts for an estimated 3% of <span style="font-size: 10pt; c...

The extractive distillation of a methanol and dimethyl carbonate (DMC) azeotrope system was taken as an example, the simulation optimization conventional process (CEP) dividing wall column (EDWC) were carried out by Aspen Plus software. In order to meet requirements separation, lower energy consumption investment cost obtained using univariate analysis optimal operating parameters EDWC. couplin...

Dual systems of steel moment frame and reinforced concrete shear wall have combined the advantages of steel frames and reinforced concrete shear wall. These walls have increased the lateral stiffness of steel frames and have reduced seismic demands on steel frames thus providing opportunities to use such system. In this research intermediate dual system of steel moment frame was chosen with int...

The "Petlyuk" or "dividing-wall" or "fully thermally coupled" distillation column is an interesting alternative to the conventional cascaded binary columns for separation of multi-component mixtures. The industrial use has been very limited, and difficulties in control has been reported as one reason. Since we have more manipulated variables than controlled variables, the column is a candidate ...

The development of floating liquefied natural gas (FLNG) plants has resulted in a focus on reducing the weight and size of the topside processing facilities for these units. The conventional fractionation of natural gas liquids (NGL) in LNG plants implies a direct sequence of three or more conventional distillation columns requiring different levels of refrigeration. The results of a feasibilit...

dual systems of steel moment frame and reinforced concrete shear wall have combined the advantages of steel frames and reinforced concrete shear wall. these walls have increased the lateral stiffness of steel frames and have reduced seismic demands on steel frames thus providing opportunities to use such system. in this research intermediate dual system of steel moment frame was chosen with int...

Acetic acid is an essential chemical used in the production of many products. Using methanol as bio-building block, acetic produced may be incorporated bio-based This study deals with enhancing efficiency separations a process using homogeneous catalyst, which most applied today industrially. Several configurations for downstream processing by distillation are investigated effective combination...