The Synthesis of Renewable Hydrocarbons from Vegetable Oil Feedstock In The Presence Of Ni-Supported Catalysts

Proceedings of the 5th World Congress on New Technologies Pub Date : 2019-08-01 DOI:10.11159/ICERT19.117

K. Malins

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引用次数: 1

Abstract

The effects of commercial Ni65%/SiO2-Al2O3 and prepared Ni10%/SiO2-Al2O3-135I Ni-supported catalysts and their amount (1.5-10%) on hydrocarbon production from rapeseed oil/it fatty acid (RO/RFA, weight ratio 1/1) feedstock were investigated. The textural properties of catalysts were characterized by N2 sorption analysis and active metal loading by XRF. The activity of catalysts was evaluated by minimum oxygen removal reaction time determined from pressure-time profiles at studied operating temperature 340 oC and initial H2 pressure of 100 bar. GC analysis of obtained hydrocarbon mixtures was used for determination of dominant hydrocarbon n-pentadecane, n-hexadecane, n-heptadecane and n-octadecane composition. Both catalyst have proper activity for complete conversion of RO/RFA into marketable hydrocarbon mixture with high yield (76.1%-83.2%), calorific value (47.20-47.24 MJ/kg) and energy recovery (ER) (90.7%-99.1%) produced at residence time ~35-52 min. Ni65%/SiO2Al2O3 has higher activity, but Ni10%/SiO2-Al2O3-135I deliver elevated yield of hydrocarbons. Both catalysts with different selectivity have a potential for practical application in hydrotreated vegetable oil production processes.

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镍负载催化剂催化植物油合成可再生碳氢化合物的研究

研究了Ni65%/SiO2-Al2O3工业催化剂和制备的Ni10%/SiO2-Al2O3- 135i ni负载催化剂及其用量(1.5 ~ 10%)对菜籽油/it脂肪酸(RO/RFA，重量比为1/1)产烃的影响。通过N2吸附分析和XRF负载活性金属表征催化剂的结构特性。在研究的操作温度为340℃，初始H2压力为100 bar时，通过压力-时间曲线确定最小脱氧反应时间来评价催化剂的活性。用气相色谱法测定了所制混合物中优势烃正十五烷、正十六烷、正十七烷和正十八烷的组成。两种催化剂均具有良好的活性，可将RO/RFA完全转化为可销售的烃类混合物，在35 ~ 52 min的停留时间内产生较高的产率(76.1% ~ 83.2%)、热值(47.20 ~ 47.24 MJ/kg)和能量回收率(ER)(90.7% ~ 99.1%)。Ni65%/SiO2Al2O3具有较高的活性，但Ni10%/SiO2-Al2O3-135I具有较高的烃类收率。这两种催化剂具有不同的选择性，在加氢植物油生产过程中具有实际应用的潜力。

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来源期刊

Proceedings of the 5th World Congress on New Technologies

CiteScore

0.10

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0.00%

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