PROMOTION OF AROMATIZATION OF PARAFFINS WITH PRESSURE SWING REACTOR

变压反应器促进石蜡芳构化

• 批准号: 05453099
• 负责人: GOTO Shigeo
• 金额: $ 3.46万
• 依托单位: NAGOYA UNIVERSITY
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for General Scientific Research (B)
• 财政年份: 1993
• 资助国家: 日本
• 起止时间: 1993 至 1995
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-05453099/
• 关键词: PSA (pressure swing adsorption) reactor; Effective use of paraffins; dehydroaromatization; Chemical application of hydrogenstorage alloy; Reactor with periodic operation; Reaction and separation

1) ApparatusA coutinuous flow tubular reaction system was modified into a single column PSA (presure swing adosorption) type reactor. Cyclohexane, n-hexane and propane were selected as starting materials. Ananlysis of products were carried out with two sets of capillary G.C.Quick analysis of both aromatic and paraffinic products and precise analysis of each components enabled both the quick determination of activity under unsteady state reaction conditions and the precise quantitative analysis of all products at the same time.2) Model reactionAs a model reaction of typical dehydrogenation, dehydrogenation of cyclohexane was carried out. Under the presence of both Pt/Al203 and nickel containing hydrogen storage alloys, almost 100% conversion was obtained wich is far exceeded the equilibrium limitation. It is pointed out that the PSA operation is applicable to enhance the dehydrogenation. The catalyst was regenerated by reducing periodically the pressure of the reaction system.3) Dehydroaromatization of paraffinsAmong paraffinic compounds, n-hexane and propane were selected as a starting materials for the application to PSA reaction system with Zn-ZSM5 catalyst. Magnesium containing hydrogen storage alloys were effective for the reaction of n-hexane by removing hydrogen under reaction conditions Titanium and tantalum were also effective in the reaction of propane. In both cases, the reaction proceeded beyond the apparent equilibrium. PSA operation which regenerated hydrogen storage alloy periodically with purging gas was applicable for this reactor. The results of the reaction of n-hexane was published on the Sekiyu Gakkaishi.

1)将连续流管式反应系统改造成单柱变压吸附式反应器。选择环己烷、正己烷和丙烷作为起始原料。采用两套毛细管气相色谱仪对产物进行了分析，对芳烃和烷烃产物进行了快速分析，并对各组分进行了精确分析，实现了非稳态反应条件下活性的快速测定，同时对所有产物进行了精确的定量分析。2）模型反应作为典型脱氢反应的模型反应，进行了环己烷脱氢反应的研究。在Pt/Al_2 O_3和含镍贮氢合金的共同存在下，获得了几乎100%的转化率，远远超过了平衡极限。指出变压吸附操作是强化脱氢的可行方法。在烷烃类化合物中，以正己烷和丙烷为原料，采用Zn-ZSM-5催化剂进行PSA反应。含镁贮氢合金对正己烷的反应有较好的除氢效果，钛和钽对丙烷的反应也有较好的除氢效果。在这两种情况下，反应都超过了表观平衡。该反应器适合采用定期吹扫再生储氢合金的变压吸附操作。正己烷的反应结果发表在Sekiyu Gakkaishi上。

项目成果

後藤繁雄: "n-ヘキサンの脱水素芳香族化反応における水素吸蔵合金の促進効果" 石油学会誌. 38(印刷中). (1995)

Shigeo Goto：“储氢合金对正己烷脱氢芳构化反应的促进作用”，日本石油学会杂志 38（出版中）。

S.Goto.T.Tagawa and T.Oomiya: "Dehydrogenation of cyclohexane in a PSA reactor Using Hydrogen Storage Alloy" Kagaku Kogaku Ronbunshu. Vol.19, No.6. 978-983 (1993)

S.Goto.T.Takawa 和 T.Oomiya：“使用储氢合金在 PSA 反应器中进行环己烷脱氢” Kagaku Kogaku Ronbunshu。

後藤繁雄: "PSA反応器による水素吸蔵合金を用いたシクロヘキサンの脱水素" 化学工学論文集. 19. 978-983 (1993)

Shigeo Goto：“在 PSA 反应器中使用储氢合金进行环己烷脱氢”《化学工程杂志》19. 978-983 (1993)。

S.Goto.T.Tagawa and H.Ohgawara: "Promotion Effect of Hydrogen Storage Alloys on the Catalytic Dehydroaromatization of n-hexane" Sekiyu Gakkaisi. Vol.38, No.3. 167-172 (1995)

S.Goto.T.Takawa 和 H.Ohkawara：“储氢合金对正己烷催化脱氢芳构化的促进作用”Sekiyu Gakkaisi。

後藤繁雄: "n-ヘキサンの脱水素芳香族化反応における水素吸蔵合金の促進効果" 石油学会誌. 38. 167-172 (1995)

Shigeo Goto：“储氢合金对正己烷脱氢芳构化反应的促进作用”日本石油学会杂志 38. 167-172 (1995)。