chrysanthemum (dendranthema grandiflorum (ramat.) kitamura cv. pattriot) is one of the most important and marketable cut flowers in the world. however, a relatively limited vase life reduces its marketability. the aim of this study was to evaluate the efficacy of salicylic acid (sa) and citric acid (ca) in extending the vase life of chrysanthemum flowers. therefore, a factorial experiment based...

Bio-oil is a promising source of chemicals and renewable fuels. As the liquid phase obtained from pyrolysis biomass, composition amount bio-oil generated depend not only on type biomass but also conditions under which performed. Most fossil fuels can be replaced by bio-oil-derived products. Thus, used directly or co-fed along with in boilers, transformed into fuel for car engines hydrodeoxygena...

Production of renewable commodity chemicals from bio-oil derived from fast pyrolysis of biomass has received considerable interests, but hindered by the presence of innumerable components in bio-oil. In present work, we proposed and experimentally demonstrated an innovative approach combining atmospheric distillation of bio-oil with co-pyrolysis for mass production of renewable chemicals from b...

Fast pyrolysis bio-oils are feasible energy carriers and a potential source of chemicals. Detailed characterization of bio-oils is essential to further develop its potential use. In this study, quantitative 13C nuclear magnetic resonance (13C NMR) combined with comprehensive two-dimensional gas chromatography (GC × GC) was used to characterize fast pyrolysis bio-oils originated from pinewood, w...

Pyrolysis is an attractive thermal conversion technology used to produce bio-oil and some chemicals. In this study, we investigated the pyrolysis of sewage sludge under N2 and CO2 atmosphere at various temperatures (350-750°C) in a rotating fixed bed reactor. For under N2 atmosphere, thermal gravimetric analysis (TGA) shows two major reaction peaks centered at 300 and 500°C. However, if CO2 was...

Every day, the United States alone uses or imports about 42 million pounds of synthetic chemicals. There are more than 84 000 compounds approved for commercial use in the United States, most of which have never been tested for toxicity. A 2011 policy statement issued by the American Academy of Pediatrics acknowledges that the large quantities of chemicals that enter commerce could be harmful to...

The current study explores co-pyrolysis of sugarcane bagasse, and thermocol waste in a semi-batch reactor to evaluate the influence temperature, blending ratio on yield products, reaction time, thereby characterize maximum liquid product. properties product (bio-oil), solid (bio-char) obtained from thermal bagasse: bio-oil were investigated for physicochemical characterizations. compositional a...

In the case of development and utilization of bio-oils, a quantitative chemical characterization is necessary to evaluate its actual desired characteristics for downstream production. This paper describes an analytical approach for the determination of families of lightweight chemicals from bio-oils by using GC-MS techniques. And on this basis, new explorations in the field of influence factors...