Results 31 to 40 of about 2,482,900 (177)

Sustainable Manufacturing Platforms for Closed‐Cycle Bioeconomy Applications

open access: yesAsia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT The transition to a circular bioeconomy requires innovative production platforms that prioritize sustainability, resource efficiency, and waste minimization. Organic waste from agriculture, aquaculture, and food production represents an underutilized feedstock for biomanufacturing, contributing to a circular economy.
Yelizaveta Chernysh   +2 more
wiley   +1 more source

Effect of Pyrolysis Temperature and Adhesive Type on the Quality of Biobriquette from Coffee Stem Biomass [PDF]

open access: yesE3S Web of Conferences
Biobriquette is organic waste charcoal printed in such a way that has a high energy density and calorific value. The biobriquette quality is influenced by several factors, including the pyrolysis temperature and the adhesive type.
Hasibuan Rosdanelli   +6 more
doaj   +1 more source

Utilization of Cassava Peel (Manihot utilissima) Waste as an Adhesive in the Manufacture of Coconut Shell (Cocos nucifera) Charcoal Briquettes

open access: yesInternational Journal of Renewable Energy Development, 2023
Coconut shells and waste cassava peels could be used as the main raw material for biomass briquettes for alternative energy sources in Indonesia. This study aims to analyze the quality of briquettes based on a coconut shell and cassava peel adhesive ...
Bayu Rudiyanto   +6 more
doaj   +1 more source

Locking Ni Atoms in Ordered PtNi for Durable Hydrogen Production: From Electrocatalyst Design to Practical AEMWE Stack Validation

open access: yesCarbon Energy, EarlyView.
DFT‐guided atomic ordering of PtNi intermetallic catalysts enhances HER activity and durability by optimizing hydrogen adsorption and increasing dissolution potential. Experimental validation from half‐cell to practical AEMWE stack demonstrates outstanding performance with less than 2% degradation over 3,000 h.
Song Jin   +14 more
wiley   +1 more source

Degradation mechanism and lifetime determination of pyrotechnic igniter used in composite fuel rockets

open access: yesNext Materials
Lifetime of magnesium/teflon/viton pyrotechnic material was determined at different time periods. Samples were obtained by rapid aging at 45 ºC for periods equivalent to 10–20–30 years.
Kaan Turgay Ozkan   +3 more
doaj   +1 more source

Techno‐Economic Assessment of Biomethane and Biohydrogen Production From Victorian Wheat Straw

open access: yesCarbon Energy, EarlyView.
Techno‐economic assessment of biomethane and biohydrogen production from Victorian wheat straw. Off‐grid renewable photovoltaic energy with a price down to 0.95 ¢/kWh was applied. Both approaches can make positive profits and negative carbon footprints.
Shuanglong Tan   +7 more
wiley   +1 more source

Methanol With Increased Water Content in Internal Combustion Engines

open access: yesChemie Ingenieur Technik, EarlyView.
This study investigates the potential to improve overall Well‐to‐Wheel efficiency by using low‐purity methanol from synthesis of hydrogen and furnace gas as CO2‐source. Combustion efficiency is comparable to pure methanol, while distillation energy could be saved.
Maximilian Dobberkau   +3 more
wiley   +1 more source

Clinical factors associated with trabecular bone score.

open access: yes, 2013
Dual-energy X-ray absorptiometry (DXA) measurement of bone mineral density (BMD) is the reference standard for diagnosing osteoporosis but does not directly reflect deterioration in bone microarchitecture.
Hans, D.   +3 more
core   +1 more source

PEMBUATAN BRIKET DAUN DARI LIMBAH PENGOLAHAN MINYAK KAYU PUTIH

open access: yesJurnal Penelitian Hasil Hutan (Journal of Forest Products Research), 2017
The  experimental   study   on  briqueting   from   leaf waste  of  cayeput  oil distillation prepared   by using  the hydraulic press proess  is presented   in  this paper.
Djeni Hendra
doaj   +1 more source

A novel bubbling fluid bed reactor for the autothermal pyrolysis of waste plastics

open access: yesThe Canadian Journal of Chemical Engineering, EarlyView.
Abstract A new pilot‐scale fluidized bed reactor operated under continuous conditions was developed and tested for the thermal pyrolysis of high‐density polyethylene (HDPE). The study focused on assessing the reliability and operability of the system under different operating conditions (400–550°C), while monitoring mass and energy balances, product ...
Khadija Olivia Ogoula Igouwe   +4 more
wiley   +1 more source

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