NOVELTY - A system for delivery of a target material and/or energy, comprises source to provide mixture containing the target material and non-target material; delivery conduit coupled to the source to receive the mixture from the source; and in-line extraction device radially positioned relative to the delivery conduit and selectively extract the target material and/or energy from the mixture in the delivery conduit and to supply the target material and/or energy to downstream facility.    USE - For delivery of a target material and/or energy (claimed).    ADVANTAGE - The system is efficient and provides cost-effective chemical delivery systems.    DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for the following:    (1) in-line extraction device for extracting target material from mixture in delivery conduit, comprising filter radially positioned relative to the delivery conduit, where the filter having first side in contact with the mixture in the delivery conduit and second side opposite the first side, where the filter selectively allow the target material to pass through the filter, and annular space on the second side of the filter and collects the target material passed through the filter and to supply the target material to downstream facility;    (2) delivering (M1) target material via a delivery conduit, involving supplying mixture containing the target material and at least one non-target material to the delivery conduit, selectively removing at least a portion of the target material from the mixture in the delivery conduit using in-line extraction device which having first side in contact with the mixture in the delivery conduit and second side opposite the first side, and collecting the target material removed by the in-line extraction device and supplying the collected target material to a downstream facility; and    (3) extracting target material from mixture in delivery conduit, involving selecting in-line extraction device having target permeability based on characteristic of the target material, selectively removing at least a portion of the target material from the mixture in the delivery conduit using the in-line extraction device having first side in contact with the mixture in the delivery conduit and second side opposite the first side, and collecting the target material removed by the in-line extraction device and supplying the collected target material to a downstream facility.