Hydrothermal degradation of polymers derived from plants

Hydrothermal carbonization of biomass waste under low temperature condition

“…The results were presented in Table 2 and Figure 2, showed that both reaction temperature and holding time period, have influenced the properties of hydrochar mass yield, energy yield and high heating value. [11,12]. From Figure 2 also shows the effect of reaction time and temperature on the mass yield of different feedstock during HTC.…”

“…Reactor, equipped with electrical heater and agitator, was made from stainless steel SS-304 as shown in insert in Figure 1. To analyze the effect of operating condition on feedstock, the experiments were performed at the different holding time period (30 and 60 minutes), feed to water ratio 1:3, 1:5, 1:10, and reaction temperatures (190,210, and 230 o C) as MATEC Web of Conferences 154, 01025 (2018) https://doi.org/10.1051/matecconf/201815401025 ICET4SD 2017 subcritical temperature for hydrolysis starts at 180 o C [11]. Nitrogen gas was passed through the reactor for 5-10 min to ensure oxygen free in the system.…”

Morphological and structural differences between glucose, cellulose and lignocellulosic biomass derived hydrothermal carbons

“…However, such a process involves the presence of strong acid catalysts or harsher processing conditions [27] [34][35][36][37]. When cellulose is hydrothermally treated in the absence of any additional catalysts and under mild processing conditions, its structure stays practically unaffected 21 below 180 o C. Above this temperature the cellulosic substrate generates an HTC material that possesses a well-developed aromatic nature (peak at 125-129 ppm) since the early stages of the reaction.…”

Pretreatments to Enhance the Digestibility of Wheat Straw

“…Wet oxidation operates with water and requires the addition of oxygen. When oxygen is omitted, the process is essentially a hydrothermal pretreatment [46]. -149 µm (1,000).…”