Process Engineering Department, University of Stellenbosch, Banghoek Road, Stellenbosch Central, Stellenbosch 7599, South Africa.
Process Engineering Department, University of Stellenbosch, Banghoek Road, Stellenbosch Central, Stellenbosch 7599, South Africa.
Bioresour Technol. 2018 Aug;262:159-168. doi: 10.1016/j.biortech.2018.04.075. Epub 2018 Apr 21.
Itaconic acid has economic potential as a commodity biochemical for the sugar industry, but its production is limited due to high production costs. Using cheaper and alternative lignocellulosic feedstocks together with achieving higher product titres have been identified as potential strategies for viable IA production. Consequently the use of sugarcane bagasse and trash for the production of itaconic acid (IA) and electricity have been investigated for an integrated biorefinery, where the production facility is annexed to an existing sugar mill and new combined heat and power (CHP) plant. Three IA biorefinery scenarios were designed and simulated in Aspen Plus®. Subsequent economic analyses indicated that cheaper feedstocks reduced the IA production cost from 1565.5 US$/t for glucose to 616.5 US$/t, but coal supplementation was required to sufficiently lower the production cost to 604.3 US$/t for a competitive IA selling price of 1740 US$/t, compared to the market price of 1800 US$/t.
衣康酸具有作为商品生物化学物质在糖业中的经济潜力，但由于生产成本高，其产量受到限制。使用更便宜和替代的木质纤维素原料，并实现更高的产品产率，已被确定为可行的 IA 生产的潜在策略。因此，已经研究了利用甘蔗渣和废料生产衣康酸（IA）和电力的综合生物精炼厂，其中生产设施附属于现有的糖厂和新的热电联产（CHP）工厂。在 Aspen Plus®中设计和模拟了三个 IA 生物精炼厂方案。随后的经济分析表明，较便宜的原料将 IA 的生产成本从葡萄糖的 1565.5 美元/吨降低到 616.5 美元/吨，但需要补充煤炭，才能将生产成本降低到 604.3 美元/吨，以达到 1740 美元/吨的有竞争力的 IA 销售价格，而不是 1800 美元/吨的市场价格。
