Injection of superheated C1 and C3 alcohols in non-edible Pongamia pinnata oil for semi-continuous uncatalyzed biodiesel synthesis

2021 ◽  
Author(s):  
Bisheswar Karmakar ◽  
Sucharita Pal ◽  
Konga Gopikrishna ◽  
Onkar Nath Tiwari ◽  
Gopinath Halder
Keyword(s):  
Pongamia Pinnata ◽  
Biodiesel Synthesis

scholarly journals Biodiesel synthesis from Pongamia Pinnata oil over modified CeO2 catalysts

2017 ◽  
Vol 58 (4) ◽  
Author(s):  
Sathgatta Zaheeruddin Mohamed Shamshuddin ◽  
Venkatesh -- ◽  
Manjunatha Shyamsundar ◽  
Vanagoor Thammannigowda Vasanth
Keyword(s):  
Large Scale ◽  
Surface Acidity ◽  
Pongamia Pinnata ◽  
Biodiesel Production ◽  
Molar Ratio ◽  
Solid Base ◽  
Incipient Wetness Impregnation ◽  
Impregnation Method ◽  
Surface Basicity ◽  
Biodiesel Synthesis

This study investigates the use of CeO<sub>2</sub>, ZrO<sub>2</sub>, MgO and CeO<sub>2</sub>-ZrO<sub>2</sub>, CeO<sub>2</sub>-MgO, CeO<sub>2</sub>-ZrO<sub>2</sub>-MgO mixed oxides as solid base catalysts for the transesterification of Pongamia Pinnata oil with methanol to produce biodiesel.  SO<sub>4</sub><sup>2-</sup>/CeO<sub>2 </sub>and SO<sub>4</sub><sup>2-</sup>/CeO<sub>2</sub>-ZrO<sub>2</sub> were also prepared and used as solid acid catalysts for esterification of Pongamia pinnata oil (P-oil) to reduce the % of free fatty acid (FFA) in P-oil. These oxide catalysts were prepared by an incipient wetness impregnation method and characterized by techniques such as NH<sub>3</sub>-TPD for surface acidity, CO<sub>2</sub>-TPD for surface basicity and powder X-ray diffraction for crystalinity.  The effect of nature of the catalyst, methanol to P-oil molar ratio and reaction time in esterification as well as in transesterification was investigated.  The catalytic materials were reactivated &amp; reused for five reaction cycles and the results showed that the ceria based catalysts have reasonably good reusability both in esterification and transesterification reaction.  The test results also revealed that the CeO<sub>2</sub>-ZrO<sub>2</sub> modified with MgO could have potential for use in the large scale biodiesel production.

Dialeurodes pongamiae - A new species of whitefly (Hemiptera: Aleyrodidae) from India

ENTOMON ◽  
2019 ◽  
Vol 44 (1) ◽  
pp. 79-80
Author(s):  
R. Sundararaj ◽  
D. Vimala
Keyword(s):  
New Species ◽  
Pongamia Pinnata ◽  
A New Species

A new whitefly species, Dialeurodes pongamiae breeding on Pongamia pinnata from Bengaluru (Karnataka: India) is described and illustrated.

An Overview of Metal-organic Frameworks-based Acid/Base Catalysts for Biofuel Synthesis

2020 ◽  
Vol 24 (16) ◽  
pp. 1876-1891
Author(s):  
Qiuyun Zhang ◽  
Yutao Zhang ◽  
Jingsong Cheng ◽  
Hu Li ◽  
Peihua Ma
Keyword(s):  
Alternative Fuels ◽  
Heterogeneous Catalysts ◽  
Supported Catalysts ◽  
Metal Organic Framework ◽  
Metal Organic Frameworks ◽  
Flexible Structures ◽  
Biodiesel Production ◽  
Biodiesel Synthesis ◽  
Metal Organic ◽  
Organic Framework

Biofuel synthesis is of great significance for producing alternative fuels. Among the developed catalytic materials, the metal-organic framework-based hybrids used as acidic, basic, or supported catalysts play major roles in the biodiesel production. This paper presents a timely and comprehensive review of recent developments on the design and preparation of metal-organic frameworks-based catalysts used for biodiesel synthesis from various oil feedstocks, including MILs-based catalysts, ZIFs-based catalysts, UiO-based catalysts, Cu-BTC-based catalysts, and MOFs-derived porous catalysts. Due to their unique and flexible structures, excellent thermal and hydrothermal stability, and tunable host-guest interactions, as compared with other heterogeneous catalysts, metal-organic framework-based catalysts have good opportunities for application in the production of biodiesel at industrial scale.

Biodiesel synthesis from algae (Chlorella sp.) in condition of subcritical methanol

2016 ◽  
Vol 04 ◽  
pp. 1 ◽  
Author(s):  
Phong, H.Q. ◽  
Dat, N.V. ◽  
Huong, H.L. ◽  
Au, T.D.
Keyword(s):  
Chlorella Sp ◽  
Biodiesel Synthesis

scholarly journals Antioxidant, Antimicrobial Properties and Phenolics of Different Solvent Extracts from Bark, Leaves and Seeds of Pongamia pinnata (L.) Pierre

Molecules ◽  
2012 ◽  
Vol 17 (4) ◽  
pp. 3917-3932 ◽  
Author(s):  
Zahid Iqbal Sajid ◽  
Farooq Anwar ◽  
Ghulam Shabir ◽  
Ghulam Rasul ◽  
Khalid M. Alkharfy ◽  
...  
Keyword(s):  
Antimicrobial Properties ◽  
Pongamia Pinnata

scholarly journals Bio-Derived Catalysts: A Current Trend of Catalysts Used in Biodiesel Production

Catalysts ◽  
2021 ◽  
Vol 11 (7) ◽  
pp. 812
Author(s):  
Hoang Chinh Nguyen ◽  
My-Linh Nguyen ◽  
Chia-Hung Su ◽  
Hwai Chyuan Ong ◽  
Horng-Yi Juan ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Fossil Fuels ◽  
Current Trend ◽  
Biodiesel Production ◽  
High Catalytic Activity ◽  
Promising Alternative ◽  
Advantages And Disadvantages ◽  
Biodiesel Synthesis ◽  
Alkali Catalysts ◽  
A Current

Biodiesel is a promising alternative to fossil fuels and mainly produced from oils/fat through the (trans)esterification process. To enhance the reaction efficiency and simplify the production process, various catalysts have been introduced for biodiesel synthesis. Recently, the use of bio-derived catalysts has attracted more interest due to their high catalytic activity and ecofriendly properties. These catalysts include alkali catalysts, acid catalysts, and enzymes (biocatalysts), which are (bio)synthesized from various natural sources. This review summarizes the latest findings on these bio-derived catalysts, as well as their source and catalytic activity. The advantages and disadvantages of these catalysts are also discussed. These bio-based catalysts show a promising future and can be further used as a renewable catalyst for sustainable biodiesel production.

Sign in / Sign up

Export Citation Format

Share Document