Minimizing Hot and Cold Utility Requirements for Vegetable Oil Refinery Plant Using Pinch Analysis *

2015 ◽  
Vol 4 (5) ◽  
pp. 298-301
Author(s):  
Bello Zubairu, ◽  
Bitrus K. Highina , ◽  
Babagana Gutti
2021 ◽  
Vol 1078 (1) ◽  
pp. 012028
Author(s):  
Md Zahangir Alam ◽  
Md Nazmus Sakib ◽  
Minarul Islam ◽  
Mohammad Jalal Uddin

2012 ◽  
Author(s):  
Sharifah Rafidah Wan Alwi ◽  
Muhammad Azan Tamar Jaya ◽  
Zainuddin Abdul Manan

Kilang penapisan minyak sawit lazimnya melibatkan proses penggunaan tenaga yang tinggi. Peningkatan kecekapan tenaga adalah amat penting bagi memastikan keuntungan tercapai. Kertas kerja ini menggunakan teknik analisis jepit bagi memaksimumkan penggunaan semula haba dan meningkatkan kecekapan sistem rangkaian haba sedia ada di kilang penghasilan minyak sawit, tertakluk kepada kekangan–kekangan proses. Langkah–langkah yang terlibat ialah penetapan sasaran guna semula haba maksimum diikuti dengan reka bentuk rangkaian haba yang ekonomik. Aplikasi teknik berkenaan kepada kilang penghasilan minyak sawit telah menghasilkan pengurangan penggunaan haba panas dan sejuk sebanyak 700 kW (21%), atau penjimatan kos utiliti sebanyak RM370,787, dengan pelaburan kapital sebanyak RM656,293 dan jangka pulangan balik selama 1.77 tahun. Kata kunci: Analisis jepit; minyak kelapa sawit; sedia ada; rangkaian pemindahan haba; kitar semula haba maksimum A palm oil refinery involves energy–intensive processes. Maximizing thermal efficiency of palm oil refinery is crucial for the plant profitability. This work implements a pinch analysis retrofit technique to maximize heat recovery and thermal efficiency of a palm oil refinery, subject to the existing process constraints. The procedures involve setting the maximum heat recovery targets and cost–effective retrofit of the heat exchanger network (HEN). Application of the technique on a palm oil refinery results in reduction of 700 kW (21%) heating and cooling loads or a saving of RM370,787, incurring a capital investment of about RM656,293 and a payback period of 1.77 years. Key words: Pinch analysis; palm oil; retrofit; heat exchanger network; maximum heat recovery


2014 ◽  
Vol 16 (8) ◽  
pp. 1725-1734 ◽  
Author(s):  
Ariana M. A. Pintor ◽  
Vítor J. P. Vilar ◽  
Cidália M. S. Botelho ◽  
Rui A. R. Boaventura

2020 ◽  
Vol 82 (10) ◽  
pp. 2134-2147
Author(s):  
Somayeh Kazemzadeh ◽  
Nafiseh Sadat Naghavi ◽  
Zarrindokht Emami-Karvani ◽  
Giti Emtiazi ◽  
Masoud Fouladgar

Abstract This study aimed to find biosurfactant producing and crude oil-degrading bacteria able to decontaminate crude oil from wastewater. The bacteria that were isolated from contaminated sites in an oil refinery plant in Isfahan, Iran, were identified by 16S rDNA sequencing as Achromobacter kerstersii strain LMG3441, Klebsiella pneumonia strain SKBA6, and Klebsiella variicola strain SKV2. According to the results obtained from different tests for the production of biosurfactant among three strains, only Achromobacter kerstersii strain LMG3441 was selected for further study. The pattern of residual hydrocarbons was analyzed by high-resolution gas chromatography-mass spectrometry (GC-MS). This novel and indigenous strain was capable of producing the highest amount of a glycolipid biosurfactant (7.81 g/L) in MSM (mineral salt medium) with 1% (v/v) crude oil as the only source of carbon and energy. The compound showed high surface activation capacity with reduction of surface tension from 40 mN m–1 in the control to 23.3 mN m–1 by the bacterium. The results of GC-MS for assessment of residual hydrocarbons in the MSM and comparison with crude oil as a control showed that 53% of the hydrocarbons in the crude oil were consumed by this novel strain.


2013 ◽  
Vol 36 (7) ◽  
pp. 1131-1137 ◽  
Author(s):  
L. Marmo ◽  
N. Piccinini ◽  
G. Russo ◽  
P. Russo ◽  
L. Munaro

2013 ◽  
Vol 23 (4) ◽  
pp. 342-351 ◽  
Author(s):  
Christian Salerno ◽  
Paola Berchialla ◽  
Lucio Antonio Palin ◽  
Kris Vanhaecht ◽  
Massimiliano Panella

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