Page numbers followed by f and t indicate figures and tables, respectively.
- Abengoa Bioenergía, 535–536
- Acetic acid, 217
- acidity as, 392
- dark fermentation, 297
- impacts of pollutant, 265
- isopropenyl, 345
- molar fraction of, 273
- organic acid, 296
- production of, 295
- Acetobacterium woodii, 483
- Acetogenesis, AD process, 104
- Acetone, 16, 78
- Acetonitrile, 229, 278
- Acetotrophic methanogens, 104
- Acid/base zeolites, 231–232
- Acid catalyst(s), 60, 64, 68, 69
- with carbon base, 482–483
- heterogeneous, 465–469
- heteropoly acids (HPAs), 469
- ion exchange resin, 467–468
- mechanism, 466
- metal oxide/mixed metal oxide, 466–467
- sulfated catalyst, 468
- sulfonated carbon based catalyst, 468–469
- homogeneous, 60, 62t, 64, 453, 455–459
- mechanism, 456
- merits and demerits of, 455t
- process variables in, 457t-458t
- transesterification reaction, 229–230
- nature of, 352
- transesterification reaction, 453, 455–459
- Acidic ionic liquid catalyst, 243
- Acidic montmorillonite, 68
- Acidity, in fuel, 392
- Acidogenesis, 104
- Acidogenic digesters, 311
- Acid value of biodiesel, 18, 407
- AcoD. see Anaerobic co-Digestion (AcoD)
- Acoustic cavitation, 73
- Acrolein, 317, 344
- Acrylic acid, 210, 343
- Acrylic aldehyde, 344
- Activated carbon, 109
- Acyl acceptors, 70
- Acylated esters, 317
- AD. see Anaerobic digestion (AD)
- Adaptive laboratory evolution (ALE), 514
- Additives
- on AD. see Anaerobic digestion (AD)
- alkali, 106
- biological, 106–108
- carbon-based, 108–113
- activated carbon, 109
- biochar (BC), ...