Zobrazeno 1 - 10
of 63
pro vyhledávání: '"Herry Purnama"'
Publikováno v:
Bulletin of Chemical Reaction Engineering & Catalysis, Vol 19, Iss 2, Pp 340-349 (2024)
Glycerol in large quantities as a by-product of biodiesel production is a promising feedstock to be converted into more valuable products such as acetin. In this work, acetin converted from glycerol acetylation with acetic acid was performed over gra
Externí odkaz:
https://doaj.org/article/eeb77448c2cc49eea440a35d2b68b3a1
Publikováno v:
South African Journal of Chemical Engineering, Vol 48, Iss , Pp 254-264 (2024)
Glycerol diversification from biodiesel production can be improved by converting it into high-value acetin products, for example, glyceryl monoacetate (MAG), glyceryl diacetate (DAG) and glyceryl triacetate (TAG) via the glycerol acetylation process
Externí odkaz:
https://doaj.org/article/6d6621d027cd4b798f93c7a40ca70bfb
Autor:
Envrinda Arief Fauzia, Herry Purnama
Publikováno v:
Techno, Vol 22, Iss 2, Pp 99-106 (2021)
Activated carbon also known as activated charcoal is a common term for carbon materials, which comprises charcoal. Activated carbon has a good adsorption capacity against gases and pollutants in liquids because of its wide surface. The material used
Externí odkaz:
https://doaj.org/article/b6bc31ec887e4747a43b246b778bd2ff
Publikováno v:
Jurnal Kimia Sains dan Aplikasi, Vol 23, Iss 12, Pp 414-423 (2021)
Biodiesel is a substitute fuel that is environmentally friendly, biodegradable, and sustainable. The need for biodiesel continues to increase. Biodiesel is made through the process of transesterification of triglycerides and alcohol. Glycerol is a si
Externí odkaz:
https://doaj.org/article/fa9b37826e1b4ee4badc7f7d0cb13be6
Publikováno v:
Bulletin of Chemical Reaction Engineering & Catalysis, Vol 14, Iss 3, Pp 683-688 (2019)
A series of fly ash-based heterogeneous acid catalysts were prepared by chemical and thermal treatment. Fly ash was chemically activated using sulfuric acid and followed by thermal activation. Characterization methods of XRD, BET, SEM-EDX, and the pe
Externí odkaz:
https://doaj.org/article/63cc0426a8234ad2a2a4958c38feb1cd
Publikováno v:
Automotive Experiences, Vol 3, Iss 1 (2020)
Direct Methanol Fuel Cell (DMFC) can operate at low temperatures, but efficiency and performance are greatly influenced by the material. On the other hand, sulfonated ketone polyether ethers (sPEEK) which have high thermal resistance, ductile, chemic
Externí odkaz:
https://doaj.org/article/827177210efe474683dcfc64d7605737
Publikováno v:
Warta LPM, Vol 18, Iss 1, Pp 1-9 (2015)
Recently the condition of agriculture in Indonesia needs to be addressed. Soil fertility getting damaged due to chemical fertilizer that is not impartial. In addition, the impact of excessive use of synthetic pesticides can cause damage to the ecosys
Externí odkaz:
https://doaj.org/article/d141e80d94164cab903a8e8515776395
Publikováno v:
International Journal of Photoenergy, Vol 2008 (2008)
The activity of titania photocatalysts is highly dependent on the synthesis procedure. This work reports a study of the correlation between the photocatalytic activity and the physicochemical and photoelectrochemical properties of sol-gel TiO2 powder
Externí odkaz:
https://doaj.org/article/a5c663625e684224b0161fc8577a0c0f
Autor:
Anisa Nur Fadhila, Herry Purnama
Publikováno v:
Jurnal Teknik Kimia USU. 11:21-27
The problem that has been difficult to overcome until now is the waste problem. Landfilling remains a method that is often used but has a disadvantage in the form of leachate production. Leachate or leachate is defined as wastewater produced from Fin
Publikováno v:
THE 2ND INTERNATIONAL SYMPOSIUM OF INDONESIAN CHEMICAL ENGINEERING 2021: Enhancing Innovations and Applications of Chemical Engineering for Accelerating Sustainable Development Goals.