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Open AccessArticle

Heat Integration of a Boiler and Its Corresponding Environmental Study in an Oleochemical Production Plant: An Industry Case Study in Malaysia

1
School of Engineering and Physical Science, Heriot-Watt University Malaysia, Putrajaya 62200, Malaysia
2
KL-Kepong Oleomas Sdn. Bhd; Pulau Indah 42920, Malaysia
*
Author to whom correspondence should be addressed.
ChemEngineering 2019, 3(4), 82; https://doi.org/10.3390/chemengineering3040082
Received: 11 July 2019 / Revised: 12 September 2019 / Accepted: 19 September 2019 / Published: 4 October 2019
(This article belongs to the Special Issue Advanced Heat Exchangers for Waste Heat Recovery Applications)
The growing demands for oleochemical products are expected to reach approximately RM 157.59 billion by 2026 due to an increased drive from the food and beverages, chemicals, and pharmaceutical industries. However, this will lead to an increase in energy consumption and subsequent flue gas emission. Proper utilization of waste gas recovery systems is thus a major research area, focusing on reducing fuel consumption and emissions of greenhouse gases without affecting process performance. In this paper, a palm oil-based oleochemical plant is studied. The fuel consumption and emission of flue gas from a thermal oil boiler were measured and the feasibility of implementation of a waste heat recovery system and its environmental impact study. The results show that the implementation of such a system can reduce natural fuel gas consumption by 17.29% and approximately 149.29 t per annum of carbon dioxide gas (CO2). Moreover, the concentration of CO2 released into highly-populated communities is estimated through a Gaussian Plume Model at different wind speed conditions. The preliminary results show that the CO2 concentration at two locations—an apartment and a local school located within 1.5 km of the plant—is well below the concentration limit of 1.938 g/m3 recommended by the Wisconsin Department of Health and Services.
Keywords: waste heat recovery system; Gaussian Plume model; environmental impact; carbon footprint waste heat recovery system; Gaussian Plume model; environmental impact; carbon footprint
MDPI and ACS Style

Koh, K.S.; Chew, S.J.; Choo, C.M.; Chok, V.S. Heat Integration of a Boiler and Its Corresponding Environmental Study in an Oleochemical Production Plant: An Industry Case Study in Malaysia. ChemEngineering 2019, 3, 82.

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