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Physicochemical properties of lard oil and rubber seed oil blends and their comprehensive characterization

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Physicochemical properties of lard oil and rubber seed oil blends and their comprehensive characterization
This research investigates the potential of blending complementary lard oil with rubber seed oil as feed-stock for biodiesel production.Rubber seed oil,obtained through hexane extraction using the Soxhlet method,contains the major fatty acids of oleic acid(C18∶1),palmitic acid(C16∶0),linoleic acid(C18∶2),and stearic acid(C18∶0),while rubber seed oil primarily consists of linoleic acid(C18∶2),oleic acid(C18∶1),linolenic acid(C18∶3),palmitic acid(C16∶0),and stearic acid(C18∶0).The least acid value of lard oil(0.55 mg KOH/g)can benefit of reducing soap formation of rubber seed oil during transesterification process in biodiesel pro-duction due to its substantial-high acid value(16.28 mg KOH/g).Blending at ratios below 80:20 volume ratio produced biodiesel exceeding 85％,utilizing CaO as a catalyst.Lard oil demonstrated a higher reaction rate constant(11.88 × 10-3 min-1)than rubber seed oil(2.11 × 10-3 min-1),indicating a significant dif-ference in performance.High acid value and free fatty acids in rubber seed oil correlated with lower re-action rates.Maintaining a mixture ratio below 80:20 volume ratio optimized reaction rates during biodiesel production.Biodiesel obtained from blends below 80∶20 volume ratio met ASTM D6751 and EN 14214 standards,demonstrating suitability for bio-auto fuel.The drawbacks of using rubber seed oil as a raw material for biodiesel production are overcome by blending with lard oil,giving rise to expanding renewable energy options for rural communities,community enterprises,and large-scale biodiesel production.

Biodiesel oilRubber seed oilLard oilHigh free fatty acidPhysicochemical propertiesLiquid biofuels

Amonrat Thangthong、Wuttichai Roschat、Phongsakorn Pholsupho、Aekkaphon Thammayod、Sunti Phewphong、Tappagorn Leelatam、Preecha Moonsin、Boonyawan Yoosuk、Pathompong Janetaisong、Vinich Promarak

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Program of Environment Science,Faculty of Science and Technology,Sakon Nakhon Rajabhat University,Mueang District,Sakon Nakhon 47000,Thailand

Biomass Energy Research Laboratory,Center of Excellence on Alternative Energy,Research and Development Institution,Sakon Nakhon Rajabhat University,Mueang District,Sakon Nakhon 47000,Thailand

Program of Chemistry,Faculty of Science and Technology,Sakon Nakhon Rajabhat University,Mueang District,Sakon Nakhon 47000,Thailand

Innovation in Chemistry for Community Research Unit,Faculty of Science and Technology,Sakon Nakhon Rajabhat University,Mueang District,Sakon Nakhon 47000,Thailand

Appropriated Technology Center,Faculty of Science and Technology,Sakon Nakhon Rajabhat University,Mueang District,Sakon Nakhon 47000,Thailand

Program of Chemistry,Faculty of Science,Ubon Ratchathani Rajabhat University,Mueang District,Ubon Ratchathani 34000,Thailand

National Energy Technology Center(ENTEC),114 Thailand Science Park,Phahonyothin Road,Klong Luang,Pathumthani 12120,Thailand

Department of Material Science and Engineering,School of Molecular Science & Engineering,Vidyasirimedhi Institute of Science and Technology,Wangchan,Rayong 21210,Thailand

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Biodiesel oil Rubber seed oil Lard oil High free fatty acid Physicochemical properties Liquid biofuels

2024

10.1016/j.cjche.2024.07.010

中国化学工程学报(英文版)
中国化工学会

中国化学工程学报(英文版)

CSTPCDEI
影响因子：0.818
ISSN：1004-9541
年,卷(期)：2024.75(11)