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Process Designs for Converting Propylene Glycol to Acrylic Acid via Lactic Acid and Allyl Alcohol
Industrial & Engineering Chemistry Research ( IF 3.8 ) Pub Date : 2020-01-09 , DOI: 10.1021/acs.iecr.9b04334 M. M. Buitelaar 1 , E. van Daatselaar 1 , D. G. van Teijlingen 1 , H. I. Stokvis 1 , J. D. Wendt 1 , R. J. De Sousa Ribeiro 1 , A. M. M. Brooks 1 , E. C. Kamphuis 1 , S. Lopez Montoya 1 , J. C. van Putten 1 , A. G. J. van der Ham 1 , H. van den Berg 1 , J.-P. Lange 1, 2
Industrial & Engineering Chemistry Research ( IF 3.8 ) Pub Date : 2020-01-09 , DOI: 10.1021/acs.iecr.9b04334 M. M. Buitelaar 1 , E. van Daatselaar 1 , D. G. van Teijlingen 1 , H. I. Stokvis 1 , J. D. Wendt 1 , R. J. De Sousa Ribeiro 1 , A. M. M. Brooks 1 , E. C. Kamphuis 1 , S. Lopez Montoya 1 , J. C. van Putten 1 , A. G. J. van der Ham 1 , H. van den Berg 1 , J.-P. Lange 1, 2
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The chemical industry is currently facing the challenge of developing biobased production processes suitable for a more sustainable chemical industry. Acrylic acid produced from monopropylene glycol is a good candidate to become a cost-competitive and sustainable platform chemical. The propylene glycol price is expected to drop due to the expected abundance of propylene glycol as a sugar hydrogenolysis byproduct, which is required to make the conversion to acrylic acid cost-competitive. Two different processes for the conversion of propylene glycol to acrylic acid are evaluated in this work, either by (1) low temperature oxidation of propylene glycol to lactic acid and high temperature dehydration to acrylic acid or by (2) high temperature dehydration of propylene glycol to allyl alcohol and further high temperature oxidation to acrylic acid. Liquid–liquid extraction was found to be a key operation in both production processes. At similar overall yields, the allyl alcohol route appears inherently favored, as a result of the opportunity to integrate the reaction heat available at high temperature. To conclude, the price of propylene glycol has to drop by 45–55% to make the biobased production of acrylic acid from propylene glycol economically feasible.
中文翻译：
通过乳酸和烯丙醇将丙二醇转化为丙烯酸的工艺设计
化学工业目前正面临开发适用于更具可持续性化学工业的生物基生产工艺的挑战。由单丙二醇生产的丙烯酸是成为具有成本竞争力和可持续性的平台化学品的良好选择。预计丙二醇价格会下降，这是因为预计会有大量的丙二醇作为糖氢解副产物，这使转化为丙烯酸具有成本竞争力。在这项工作中，评估了两种不同的方法将丙二醇转化为丙烯酸的方法：（1）丙二醇的低温氧化为乳酸，高温脱水为丙烯酸，或（2）丙二醇的高温脱水生成烯丙醇，进一步高温氧化成丙烯酸。发现液-液萃取是这两个生产过程中的关键操作。由于有机会整合在高温下可利用的反应热，因此烯丙醇路线以总收率相似的方式固有地受到青睐。总而言之，丙二醇的价格必须下降45-55％，才能使丙二醇生物基丙烯酸的生产在经济上可行。
更新日期：2020-01-09
中文翻译：
通过乳酸和烯丙醇将丙二醇转化为丙烯酸的工艺设计
化学工业目前正面临开发适用于更具可持续性化学工业的生物基生产工艺的挑战。由单丙二醇生产的丙烯酸是成为具有成本竞争力和可持续性的平台化学品的良好选择。预计丙二醇价格会下降，这是因为预计会有大量的丙二醇作为糖氢解副产物，这使转化为丙烯酸具有成本竞争力。在这项工作中，评估了两种不同的方法将丙二醇转化为丙烯酸的方法：（1）丙二醇的低温氧化为乳酸，高温脱水为丙烯酸，或（2）丙二醇的高温脱水生成烯丙醇，进一步高温氧化成丙烯酸。发现液-液萃取是这两个生产过程中的关键操作。由于有机会整合在高温下可利用的反应热，因此烯丙醇路线以总收率相似的方式固有地受到青睐。总而言之，丙二醇的价格必须下降45-55％，才能使丙二醇生物基丙烯酸的生产在经济上可行。
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