| Cover | Dec. 19, 2022 |
| Document Type | 8-K |
| Amendment Flag | false |
| Document Period End Date | Dec. 19, 2022 |
| Entity File Number | 001-40743 |
| Entity Registrant Name | CENAQ Energy Corp. |
| Entity Central Index Key | 0001841425 |
| Entity Tax Identification Number | 85-1863331 |
| Entity Incorporation, State or Country Code | DE |
| Entity Address, Address Line One | 4550 Post Oak Place Dr. |
| Entity Address, Address Line Two | Suite 300 |
| Entity Address, City or Town | Houston |
| Entity Address, State or Province | TX |
| Entity Address, Postal Zip Code | 77027 |
| City Area Code | 713 |
| Local Phone Number | 820-6300 |
| Written Communications | false |
| Soliciting Material | false |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
| Entity Emerging Growth Company | true |
| Elected Not To Use the Extended Transition Period | false |
| Units, each consisting of one share of Class A common stock and three-quarters of one warrant | |
| Title of 12(b) Security | Units, each consisting of one share of Class A common stock and three-quarters of one warrant |
| Trading Symbol | CENQU |
| Security Exchange Name | NASDAQ |
| Class A common stock, par value $0.0001 per share | |
| Title of 12(b) Security | Class A common stock, par value $0.0001 per share |
| Trading Symbol | CENQ |
| Security Exchange Name | NASDAQ |
| Warrants, each whole warrant exercisable for one share of Class A common stock at an exercise price of $11.50 per share | |
| Title of 12(b) Security | Warrants, each whole warrant exercisable for one share of Class A common stock at an exercise price of $11.50 per share |
| Trading Symbol | CENQW |
| Security Exchange Name | NASDAQ |
