| 摘要 |
A method for hydrothermal liquefaction of biomass, wherein the biomass supplied by pumps from a tank is provided to a reactor, in which the biomass is heated to obtain reactor products in the form of volatile, liquid and solid fractions, which are separated in a separator. The biomass (200) supplied from the tank (110) is pressurized in pumps (120) to a pressure from 220 atm. to 250 atm., after which it is preliminarily heated in a heat exchanger (130) to a temperature of at least 374 - 400°C by the thermal energy of the reactor (140) products and next the preheated biomass is reheated in the reactor (140) using microwave radiation emitted by generators (150) with a frequency from 900 MHz to 4 GHz through radiators (143) of polarised waves, wherein the radiation directions are perpendicular with respect to the directions of the neighbouring radiators (143A,143B), and the width (a) of the radiator slot is smaller than half of the radiation wavelength (lambda) emitted from the generators (150), and wherein the reflections of electromagnetic wave supplied to the radiators (143) are measured using reflectometers (151) placed between the radiators (143) and the generators (150), and wherein the temperature of the biomass inside the reactor (140) is measured using temperature sensors (141) and a controller (152), and wherein based on the measurements of the temperature sensors (141) and reflectometers (151), the power of radiation generated by the generators (150) is adjusted to retain the biomass inside the reactor at the temperature of 374°C to 400°C. |
