Zobrazeno 1 - 10
of 261
pro vyhledávání: '"Karna Wijaya"'
Autor:
Karna Wijaya, Aldino Javier Saviola, Amalia Kurnia Amin, Marini Fairuz Vebryana, Adyatma Bhagaskara, Hilda Anggita Ekawati, Saffana Ramadhani, Dita Adi Saputra, Agustanhakri Agustanhakri
Publikováno v:
Bulletin of Chemical Reaction Engineering & Catalysis, Vol 19, Iss 2, Pp 361-371 (2024)
Human efforts to overcome environmental problems from using fossil fuels continue, such as hydroconversion of biomass into bio-jet fuel. Research on producing a jet fuel range of bio-hydrocarbons from used palm cooking oil catalyzed by sulfated zirco
Externí odkaz:
https://doaj.org/article/b773e8bc6769495c86aacef0a8f10316
Publikováno v:
Communications in Science and Technology, Vol 9, Iss 1, Pp 161-169 (2024)
With the increasing demand for fuel for global usage and CO2 emissions, greener alternatives are needed, especially in biojet fuel production. Catalyst preparation involves the impregnation of Ni and Mo metals into H-ZSM-5 using a dry impregnation me
Externí odkaz:
https://doaj.org/article/b404319bdf9449dd9542d02f10154752
Autor:
Ady Yulianto, Wega Trisunaryanti, Triyono Triyono, Aldino Javier Saviola, Karna Wijaya, Indriana Kartini, Suryo Purwono, Rodiansono Rodiansono, Ady Mara
Publikováno v:
Case Studies in Chemical and Environmental Engineering, Vol 10, Iss , Pp 100894- (2024)
The issue of the depletion of the availability of fossil fuels for the aviation industry and the adverse effects of their use has led researchers to continue to develop biofuels from vegetable oils that are abundant in nature. This research successfu
Externí odkaz:
https://doaj.org/article/cb04e51c701d423cbc594f46359e5551
Autor:
Adyatma Bhagaskara, Dita Adi Saputra, Aldino Javier Saviola, Karna Wijaya, Won-Chun Oh, Sri Rahayu, Muhammad Dikdik Gumelar, Aghni Ulma Saudi, Agustanhakri Agustanhakri, Abdul Hamid Budiman, Surat Indrijarso
Publikováno v:
Case Studies in Chemical and Environmental Engineering, Vol 10, Iss , Pp 100844- (2024)
Nickel-manganese-cobalt (NMC) is a type of cathode material widely used in lithium-ion batteries (LiBs). It performs well on high energy density and thermal stability, but after several charged-discharged cycles, its capacity significantly degrades a
Externí odkaz:
https://doaj.org/article/9297717869034d0db7d1fed2273b75e0
Autor:
Aldino Javier Saviola, Karna Wijaya, Akhmad Syoufian, Wahyu Dita Saputri, Dita Adi Saputra, Ilyas Taufik Abdul Aziz, Won-Chun Oh
Publikováno v:
Case Studies in Chemical and Environmental Engineering, Vol 9, Iss , Pp 100653- (2024)
The objectives of this study were to determine the optimum phosphoric acid concentration that produces a PO4–ZrO2 catalyst with the best acidity and examine its performance in the catalytic hydroconversion of used palm cooking oil. The catalysts we
Externí odkaz:
https://doaj.org/article/cad60f9ec3054618ab576a17ec6892ad
Autor:
Wega Trisunaryanti, Triyono, Karna Wijaya, Indriana Kartini, Suryo Purwono, Rodiansono, Ady Mara, Amsal Budiyansah
Publikováno v:
Communications in Science and Technology, Vol 8, Iss 2, Pp 226-234 (2023)
The research aims to study the effects of Mo metal embedded on H-Mordenite on its activity and selectivity of hydrodeoxygenation (HDO) for Refined Palm Kernel Oil (RPKO) into bioavtur. The RPKO was obtained from the results of degumming and bleaching
Externí odkaz:
https://doaj.org/article/fab7985b9927463589e1a05459fb59ba
Publikováno v:
Indonesian Journal of Chemistry, Vol 23, Iss 2, Pp 285-297 (2023)
Research on the synthesis of mesoporous silica catalyst, as well as its activity and selectivity in the hydrocracking of used palm oil, has been carried out. The research involved the preparation of mesoporous silica catalyst by varying the volume ra
Externí odkaz:
https://doaj.org/article/2bd807fd5af348c49b0a703017fd9ddf
Autor:
Heri Heriyanto, Oki Muraza, Galal A. Nasser, Mohammed Ahmed Sanhoob, Idris A. Bakare, Budhijanto, Rochmadi, Karna Wijaya, Arief Budiman
Publikováno v:
International Journal of Technology, Vol 14, Iss 1, Pp 142-151 (2023)
The use of methanol over ZSM-5 and modified catalysts for the production of light olefins has emerged as an effective new strategy for this industry. In the methanol-to-olefin (MTO) process, the challenges are maintaining product selectivity and p
Externí odkaz:
https://doaj.org/article/93fcf109165149ea81ad03921370940b
Autor:
Saharman Gea, Irvan Irvan, Karna Wijaya, Asma Nadia, Ahmad Pulungan, Junifa Sihombing, Rahayu Rahayu
Publikováno v:
Biofuel Research Journal, Vol 9, Iss 2, Pp 1630-1639 (2022)
Bio-oil includes significant levels of oxygenate molecules, which might induce component instability and reduce its physicochemical qualities. To counteract this, the component must undergo a hydrodeoxygenation (HDO) reaction. Due to the presence of
Externí odkaz:
https://doaj.org/article/1dfc305ec9774f058e8b1e38c5ac387c
Autor:
Iqmal Tahir, Justitia Millevania, Karna Wijaya, Mudasir, Roswanira Abdul Wahab, Widi Kurniawati
Publikováno v:
Results in Engineering, Vol 17, Iss , Pp 100919- (2023)
The production of thiamine chitosan nanoemulsion via sonication treatment has been optimized using response surface methodology (RSM). This study examines the effect of sonication treatment on thiamine chitosan formulation and variations in time, amp
Externí odkaz:
https://doaj.org/article/7d44abb62ddc4fc88c571d3f4d95b831