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Table 3 Analysis of water-soluble aqueous phase co-products (ACP)

From: Oleaginous yeast platform for producing biofuels via co-solvent hydrothermal liquefaction

HTL experimental conditions and reactor type

N and P, expressed in mg L−1

 

NVR, %

TOC, mg L−1

NO3 and NO2

NH3–N

KN

Total P

pH

Non-catalytic, 300 °C, 2-L Parr

0.10

659

1220

1254

3.74

16.28

4281

Catalytic, 300 °C, 2-L Parr

0.24

502

979

1335

3.92

10.34

4611

Non-catalytic, co-solvent 240 °C, 2-chamber

0.20

521

927

1722

3.83

1.46

5091

Catalytic, co-solvent 240 °C, 2-chamber

0.22

438

800

1794

4.11

1.26

5643

  1. All HTL runs were performed for 30 min residence time
  2. N nitrogen, KN Kjeldahl nitrogen, NVR non-volatile residue, TP total phosphorous, TOC total organic carbon