期刊
FUEL
卷 293, 期 -, 页码 -出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.fuel.2020.119960
关键词
Petroleum refining; Refinery modeling and integration; Co-processing in fluid catalytic cracking; Bio-oil from fast pyrolysis; Techno-economic analysis; Vacuum gasoil; Pine wood
资金
- U.S. Department of Energy (DOE) [DE-AC3608GO28308]
- U.S. Department of Energy Office of Energy Efficiency and Renewable Energy Bioenergy Technologies Office
- EERE International
NREL and Petrobras collaborated to assess the economic feasibility of co-processing bio-oils with fossil feedstocks in petroleum refinery unit operations. Experimental results showed potential for bio-oil co-processing to be economically attractive for petroleum refiners under certain conditions.
National Renewable Energy Laboratory (NREL) and Petrobras have worked closely to develop process models and analysis approaches to assess the economic feasibility of co-processing bio-oils (pyrolysis oils) with fossil feedstocks in petroleum refinery unit operations. Petrobras conducted co-processing experiments with pine-derived bio-oils and Brazilian vacuum gasoil (VGO) at typical operating conditions on their 200 kg/h demonstration-scale fluid catalytic cracking (FCC) unit. NREL evaluated the experimental yield data and developed novel modeling approaches to simulate and optimize co-processing scenarios. Within the uncertainties of measurements and the simplified refinery models used, the process modeling and techno-economic analysis (TEA) results identify conditions in which co-processing bio-oils could be economically feasible for the case of refiners purchasing VGO, expanding prior work demonstrating technical feasibility. TEA scenarios show a high potential for bio-oil co-processing to be economically attractive for petroleum refiners for benchmark crude oil prices at $70 (U.S. dollars) per barrel using up to 5 wt% bio-oil produced with typical fast pyrolysis technology (<= 400 t/d) fed with dried pine chips. For oil prices per barrel of $55-$60, up to 10 wt% bio-oil could be co-processed profitably if produced in pyrolysis plants performing at an nth-plant level, feeding 2,000 t/d with dried pine chip feedstocks producing bio-oil at $48-$56 per barrel from feedstock ranging from $99-$132 per t ($90-$120 per ton). Alternatively, low-price biomass feedstocks could make bio-oil co-processing viable at lower oil prices in both cases.
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