Effect of Molecular Structure of C<sub>10</sub> Hydrocarbons on Production of Light Olefins in Catalytic Cracking
The effect of the molecular structure of feedstock on the cracking reaction of C10 hydrocarbons to ethylene and propylene over H-ZSM-5 zeolite was investigated. To better compare the effect of decane on the production of light olefins, the thermal cracking and catalytic cracking performance of decan...
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2023-06-01
|
| Series: | Catalysts |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2073-4344/13/6/1013 |
| _version_ | 1797595576929353728 |
|---|---|
| author | Lingyin Du Yueyang Han Youhao Xu |
| author_facet | Lingyin Du Yueyang Han Youhao Xu |
| author_sort | Lingyin Du |
| collection | DOAJ |
| description | The effect of the molecular structure of feedstock on the cracking reaction of C10 hydrocarbons to ethylene and propylene over H-ZSM-5 zeolite was investigated. To better compare the effect of decane on the production of light olefins, the thermal cracking and catalytic cracking performance of decane were first investigated. As a comparison, the thermal cracking and catalytic cracking of decane were studied by cracking over quartz sand and H-ZSM-5. Compared with the thermal cracking reaction over quartz sand, the catalytic cracking reaction of decane over H-ZSM-5 has a significantly higher conversion and light olefins selectivity, especially when the reaction temperature was lower than 600 °C. On this basis, the catalytic cracking reactions of decane and decene over H-ZSM-5 were further compared. It was found that decene with a double bond structure had high reactivity over H-ZSM-5 and was almost completely converted, and the product was mainly olefin. Compared with decane as feedstock, it has a lower methane yield and higher selectivity of light olefins. Therefore, decene was more suitable for the production of light olefins than decane. To this end, we designed a new light olefin production process. Through olefin cracking, the yield of light olefins in the product can be effectively improved, and the proportion of different light olefins such as ethylene, propylene and butene can be flexibly adjusted. |
| first_indexed | 2024-03-11T02:39:29Z |
| format | Article |
| id | doaj.art-1f34d1a97d534bf0968d1d2aaa030d02 |
| institution | Directory Open Access Journal |
| issn | 2073-4344 |
| language | English |
| last_indexed | 2024-03-11T02:39:29Z |
| publishDate | 2023-06-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Catalysts |
| spelling | doaj.art-1f34d1a97d534bf0968d1d2aaa030d022023-11-18T09:42:28ZengMDPI AGCatalysts2073-43442023-06-01136101310.3390/catal13061013Effect of Molecular Structure of C<sub>10</sub> Hydrocarbons on Production of Light Olefins in Catalytic CrackingLingyin Du0Yueyang Han1Youhao Xu2Research Institute of Petroleum Processing, Sinopec, Xueyuan Road No. 18, Beijing 100083, ChinaResearch Institute of Petroleum Processing, Sinopec, Xueyuan Road No. 18, Beijing 100083, ChinaResearch Institute of Petroleum Processing, Sinopec, Xueyuan Road No. 18, Beijing 100083, ChinaThe effect of the molecular structure of feedstock on the cracking reaction of C10 hydrocarbons to ethylene and propylene over H-ZSM-5 zeolite was investigated. To better compare the effect of decane on the production of light olefins, the thermal cracking and catalytic cracking performance of decane were first investigated. As a comparison, the thermal cracking and catalytic cracking of decane were studied by cracking over quartz sand and H-ZSM-5. Compared with the thermal cracking reaction over quartz sand, the catalytic cracking reaction of decane over H-ZSM-5 has a significantly higher conversion and light olefins selectivity, especially when the reaction temperature was lower than 600 °C. On this basis, the catalytic cracking reactions of decane and decene over H-ZSM-5 were further compared. It was found that decene with a double bond structure had high reactivity over H-ZSM-5 and was almost completely converted, and the product was mainly olefin. Compared with decane as feedstock, it has a lower methane yield and higher selectivity of light olefins. Therefore, decene was more suitable for the production of light olefins than decane. To this end, we designed a new light olefin production process. Through olefin cracking, the yield of light olefins in the product can be effectively improved, and the proportion of different light olefins such as ethylene, propylene and butene can be flexibly adjusted.https://www.mdpi.com/2073-4344/13/6/1013decanedecenecatalytic crackinglight olefinsmolecular structure |
| spellingShingle | Lingyin Du Yueyang Han Youhao Xu Effect of Molecular Structure of C<sub>10</sub> Hydrocarbons on Production of Light Olefins in Catalytic Cracking Catalysts decane decene catalytic cracking light olefins molecular structure |
| title | Effect of Molecular Structure of C<sub>10</sub> Hydrocarbons on Production of Light Olefins in Catalytic Cracking |
| title_full | Effect of Molecular Structure of C<sub>10</sub> Hydrocarbons on Production of Light Olefins in Catalytic Cracking |
| title_fullStr | Effect of Molecular Structure of C<sub>10</sub> Hydrocarbons on Production of Light Olefins in Catalytic Cracking |
| title_full_unstemmed | Effect of Molecular Structure of C<sub>10</sub> Hydrocarbons on Production of Light Olefins in Catalytic Cracking |
| title_short | Effect of Molecular Structure of C<sub>10</sub> Hydrocarbons on Production of Light Olefins in Catalytic Cracking |
| title_sort | effect of molecular structure of c sub 10 sub hydrocarbons on production of light olefins in catalytic cracking |
| topic | decane decene catalytic cracking light olefins molecular structure |
| url | https://www.mdpi.com/2073-4344/13/6/1013 |
| work_keys_str_mv | AT lingyindu effectofmolecularstructureofcsub10subhydrocarbonsonproductionoflightolefinsincatalyticcracking AT yueyanghan effectofmolecularstructureofcsub10subhydrocarbonsonproductionoflightolefinsincatalyticcracking AT youhaoxu effectofmolecularstructureofcsub10subhydrocarbonsonproductionoflightolefinsincatalyticcracking |