Pipeline natural gas heavy hydrocarbon removal unit

The utility model discloses a pipeline natural gas heavy hydrocarbon removal unit which mainly comprises a heavy hydrocarbon adsorber, a regenerative gas heater, a heavy hydrocarbon regenerative gas heat exchanger, a regenerative gas heavy hydrocarbon separation tank and a high-pressure energy saver. The heavy hydrocarbon adsorber is arranged at the downstream part of a molecular sieve dehydration unit, comprises two heavy hydrocarbon adsorption beds and is used for removing aromatic hydrocarbons, cycloalkanes and long-chain alkanes with more than 6 carbon atoms. According to the pipeline natural gas heavy hydrocarbon removal unit,'super-heavy' components in the pipeline natural gas are removed through physical adsorption, and other'secondary-heavy' components are removed through condensation and separation; and thus, efficient removal of heavy hydrocarbons is realized, the problem of possible accumulation of heavy hydrocarbons is solved, and the universality of the device is improved so that the device can be better adapted to the occasions with quick change of gas source components.