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第 39 卷第 4 期                             精   细   化   工                                  Vol.39, No.4
             2022 年 4 月                              FINE CHEMICALS                                  Apr.  2022


              催化与分离提纯技术
                        蒽醌法双氧水钯催化剂的制备及工业应用



                                                                                 *
                            沈   冲,杨盟飞,冯   彬,张   哲,白立光 ,赵晓东
                                    (黎明化工研究设计院有限责任公司,河南  洛阳  471000)


                 摘要:以铝溶胶、丙烯酸-丙烯酰胺共聚物(AA/AM)、六亚甲基四胺为原料,采用油柱成型法制备氧化铝球形
                 颗粒,并使用浸渍法得到 Pd/Al 2 O 3 催化剂。将 Pd/Al 2 O 3 用于 2-乙基蒽醌催化加氢反应。使用 N 2 吸附-脱附、XRD、
                 TEM、CO 脉冲滴定对催化剂结构进行了表征,考察了 AA/AM 对催化剂结构的影响。结果表明,AA/AM 的加
                 入没有改变催化剂的晶体结构,但会增加催化剂比表面积和孔径,同时使催化剂表面 Pd 粒子的尺寸减小,Pd
                 的分散度增大。与未改性的催化剂 APC-Q-1S 相比,添加 AA/AM 的改性催化剂 LDHA-1 在实验室反应器中的
                 活性由 12.5 g/L 增加至 14.5 g/L,在过氧化氢产能(以 100% H 2 O 2 计,下同)为 10 kg/d 的模型实验装置和 2000
                 t/a 的工业生产装置中的时空产率分别提升 77.0%和 70.0%;在过氧化氢产能为 55000 t/a 的工业生产装置中,时
                 空产率可达 8.55 kg H 2 O 2 /(kg cat·d),显著高于现有工业用催化剂〔≤6.14 kg H 2 O 2 /(kg cat·d)〕。
                 关键词:Pd/Al 2 O 3 催化剂;比表面积;孔径;2-乙基蒽醌加氢;过氧化氢;工业应用;催化技术
                 中图分类号:TQ123.6;TQ426      文献标识码:A      文章编号:1003-5214 (2022) 04-0746-07



                         Preparation and application of palladium-based catalyst for
                         producing hydrogen peroxide through anthraquinone route


                                                                                    *
                    SHEN Chong, YANG Mengfei, FENG Bin, ZHANG Zhe, BAI Liguang , ZHAO Xiaodong
                      (Liming Research and Design Institute of Chemical Industry Co., Ltd., Luoyang 471000, Henan, China)

                 Abstract:  Alumina spherical granules were synthesized  via oil-drop method  using alumina sol, acrylic
                 acid-acrylamide copolymer (AA/AM) and hexamethylenetetramine as raw materials. Then Pd/Al 2O 3
                 catalyst was prepared by wet impregnation for the catalytic hydrogenation of 2-ethylanthraquinone. The
                 catalyst was characterized by N 2 adsorption-desorption, XRD, TEM and CO pulse titration. The effect of
                 AA/AM on the structure of the catalyst was studied. The result showed that the addition of AA/AM did not
                 change the crystal structure of the catalyst, but increased specific surface area and pore size. Meanwhile, the
                 addition of AA/AM decreased the size of Pd particles on the catalyst surface and increased the dispersion of
                 Pd. Compared with those of unmodified APC-Q-1S, the catalytic activity of LDHA-1 catalyst modified by
                 AA/AM in a laboratory reactor increased from 12.5 to 14.5 g/L, and the space-time yields of LDHA-1 in a
                 model plant with hydrogen peroxide capacity (on the basis of 100% H 2O 2, the same below) of 10 kg/d and
                 in an industrial plant with  hydrogen peroxide capacity of  2000 t/a increased  by 77.0% and  70.0%,
                 respectively. The space-time yield in the industrial plant with hydrogen peroxide capacity of 55000 t/a was
                 up to 8.55 kg H 2 O 2 / (kg cat·d), significantly higher than those of commercial catalysts [≤6.14 kg H 2 O 2 /(kg cat·d)].
                 Key words: Pd/Al 2O 3  catalyst; specific surface area;  pore size;  hydrogenation of  2-ethylanthraquinone;
                 hydrogen peroxide; industrial application; catalysis technology


                 过氧化氢,俗称“双氧水”,广泛用于化学品合                         该过程多使用 Pd/Al 2 O 3 催化剂     [1-2] 。随着以过氧化氢
            成、造纸、污水处理、纺织等领域。工业上使用蒽                             为原料合成己内酰胺和环氧丙烷绿色工艺的成熟,
                                                                                                 [3]
            醌法生产过氧化氢,蒽醌加氢是其中的关键工序,                             过氧化氢生产装置产能急需大幅提升 ,而现有催

                 收稿日期:2021-09-15;  定用日期:2021-11-25; DOI: 10.13550/j.jxhg.20210937
                 基金项目:河南省重大科技专项(创新示范专项,79819);洛阳市科技重大专项(1901027A)
                 作者简介:沈   冲(1983—),男,高级工程师,E-mail:412239108@qq.com。联系人:白立光(1983—),男,高级工程师,E-mail:
                 bailiguang@sciences.chemchina.com。
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