Abstract This study examines the integration of commercial liquid fuels production from biomass using the alcohol-to-jet pathway into a conventional kraft pulp mill operation. Mill assets including feed handling and supply chain infrastructure, power and recovery systems, and potential equipment retrofitting opportunities are utilized by a fuel production unit through lignocellulosic ethanol fermentation and alcohol-to-jet processing. Potential economic benefits of integrating the energy recovery system (recovery boiler) of the pulp mill with the biomass pretreatment systems are evaluated through energy and mass balances of the integrated facility. Process variations explored within this model include the use of hemicellulose pre-extraction or black liquor fractionation, modifications to digester operations and the scale of a mill retrofitting project. The production of liquid fuels is found to provide a relative reduction in energy use compared to pulp production. With the low energy costs provided by this design, maintaining a high yield throughout the conversion process and the reduction of capital costs offer the best opportunities for further improving economics. Although the economic viability of a realistic biorefinery is not directly evaluated in this study, the aim is to identify technical barriers and opportunities for development of integrated strategies for implementing proven biofuels production technologies.

中文翻译：

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纸浆厂与酒精-喷射转换技术的集成

摘要 本研究考察了将使用酒精喷射路径的生物质商业液体燃料生产整合到传统牛皮纸浆厂运营中的情况。燃料生产单位通过木质纤维素乙醇发酵和酒精-喷射加工利用工厂资产，包括饲料处理和供应链基础设施、电力和回收系统以及潜在的设备改造机会。将制浆厂的能量回收系统（回收锅炉）与生物质预处理系统集成的潜在经济效益通过集成设施的能量和质量平衡进行评估。该模型中探索的工艺变化包括使用半纤维素预提取或黑液分馏，消化池操作的修改和工厂改造项目的规模。发现与纸浆生产相比，液体燃料的生产提供了相对减少的能源使用。由于这种设计提供的低能源成本，在整个转化过程中保持高产量和降低资本成本为进一步提高经济性提供了最佳机会。虽然本研究没有直接评估现实生物精炼厂的经济可行性，但其目的是确定技术障碍和机会，以制定实施成熟生物燃料生产技术的综合战略。在整个转化过程中保持高产量和降低资本成本为进一步提高经济性提供了最佳机会。虽然本研究没有直接评估现实生物精炼厂的经济可行性，但目的是确定技术障碍和机会，以制定实施成熟生物燃料生产技术的综合战略。在整个转化过程中保持高产量和降低资本成本为进一步提高经济性提供了最佳机会。虽然本研究没有直接评估现实生物精炼厂的经济可行性，但其目的是确定技术障碍和机会，以制定实施成熟生物燃料生产技术的综合战略。