| Affected by the shortage and the rising price of petroleum resources, as well as the effect of global climate change, many countries are promoting the development and utilization of bioenergy with great exertion. Biofuel is an important content of renewable bioenergy. The second-generation biofuel, of which raw material is from non-staple crops such as corn straw, has significant advantages of regional adaptability, economy and environmental friendly, due to the extensive sources and low cost of raw materials, clean and environmental protection. Bioethanol can be an alternative of vehicle fuel, which causes strong interests of the countries who have large scales of automobile consumption or agricultural production, so its market potential is tremendous. Brazil, the United States, the European Union, etc., have been in the forefront of the world in the field of bioethanol development, providing a lot of valuable experience.In order to ensure a continuous supply of biofuel, it is essential to build an effective and stable biofuel supply chain network. However, in actual operation, in addition to the uncertainty factors such as the changes of supply, demand, and price which can bring operational risk to supply chain network, the failure events such as earthquake, hurricane, explosion, the strike and so on that could lead to disruption of the supply chain also exist commonly. Such failure events, although the occurrence probability is very small, but once happen, are likely to cause severe damage on the supply chain system. Therefore, in order to effectively deal with the complex risk environment, including general operational risk and disruption risk, it is necessary to be fully aware of the above risk factors at the beginning of the bioenergy supply chain network design, to make the supply chain network not only operate in normal condition effectively, but also have sufficient resiliency, that is the ability of a rapid return to normal supply, faced with the impact of the failure events.Based on the research of designing the resilient supply chain system, this paper constructs a bioethanol production supply chain mainly composed of biomass cultivation sites, bioethanol refineries and demand centres. Taking into consideration the operational risk of uncertainty of final product demand, as well as the disruption risk of the failures of biomass supply and refining facilities, this paper conducts a study for design and operation strategy of the bioenergy supply chain network under complex risk environment, mainly including the following research work:(1) Stating the background and significance of this paper, and giving the logic thinking, basic research content and structure framework of the full text.(2) Summarizing and reviewing the related literature, mainly including the related conception and research of bioenergy supply chain, the related theories and researches of supply chain risk and resilient supply chain network design under risk environment, network model solving method research and so on at home and abroad.(3) Building different bioenergy resilient supply chain network design model according to the different design objectives. This paper establishes an optimization model of bioenergy resilient supply chain networks faced with complex risk environment; And further, establishes the resilient supply chain network design model considering the best trade-off between the system service level and cost level.(4) Numerical experiment analysis, it proves the feasibility and validity of the model this paper proposed through the practical experiment, and it also proves the great practical application value to construct the bioenergy resilient supply chain network.(5) At the last, the paper summarizes the main views and indicates the defects as well as advices and expectations of the future work. |
