Proctor and gamble technology process assessment for bioenergy production

Hu, Hongqiang¹  Boardman, Richard Doin¹  Wright, Christopher Todd¹ 

[1] Idaho National Lab. (INL), Idaho Falls, ID (United States)

关键词: Anaerobic digestion;    Bioenergy;    Biomass;    combustion;    gasification;    Technological assessment;   

DOI  :  10.2172/1244641
RP-ID  :  INL/EXT--15-36869
PID  :  OSTI ID: 1244641

学科分类：燃料技术

美国|英语

来源: SciTech Connect

【 摘 要 】

P&G intends to replace as much as their current heat and power by renewable energy sources. For 2014, P&G???s total energy including electricity, natural gas and steam is approximately 1,540,000 MMBTU annually (Table 2). The biomass and wastes around P&G facility can be grouped into six categories (Figure 6): (1) Agriculture residue and grass, (2) Refuse (inorganic) solid material, (3) Food waste, (4) Organic waste stream, (5) livestock manure, (6) wastewater and sludge. The six feedstock sources can provide a total energy of 3,520,000 MMBTU per year (Table 10), among which the agriculture residue is the biggest fraction, about 67%, followed by livestock manures 27%. Therefore, the available energy sources around P&G facility are enough to meet their energy needs. These energy feedstocks would be treated by two processes: anaerobic digestion for biogas subsequently for heat and power and thermochemical process (combustion, pyrolysis and gasification) for heat and power (Figure 8 and 9). For AD, a one-stage complete mixing digester is preferable; and fluidized bed reactors are favorable for thermochemical process.