T. A. B, Onoghwarite EO. IMPROVING THE EFFICIENCY OF NIGERIAN REFINERIES USING PINCH TECHNOLOGY A CASE STUDY OF THE CRUDE DISTILLATION UNIT OF PORT HARCOURT REFINERY, ALESA ELEME. bj [Internet]. 2026 Apr. 14 [cited 2026 Jun. 3];. Available from: https://www.bwjournal.org/index.php/bsjournal/article/view/3938