The invention provides a process to form a composition comprising at least one ethylene-based polymer and at least one oil, said process comprising the following: polymerizing a mixture comprising ethylene, and optionally one or more comonomers, in a reactor system, comprising at least one reactor and at least one mixer, located downstream from the reactor, to form the ethylene-based polymer; and wherein the oil is added to the ethylene-based polymer upstream of the mixer. The invention also provides a reactor system for a process to form a composition comprising at least one ethylene-based polymer and at least one oil, said reactor system comprising at least one reactor, at least one mixer, and an oil feed into the ethylene-based polymer, and wherein the oil feed is located after the reactor and before the mixer.

Volatile compound emissions from a product that comprises a polymeric material may be reduced or eliminated from the product by heating the product in a subatmospheric pressure environment. The product may be heated in the subatmospheric pressure environment at a temperature sufficient to vaporize a volatile compound contained within the polymeric material such that vapors of the volatile compound are extracted or released from the product.

Volatile compound emissions from a product that comprises a polymeric material may be reduced or eliminated from the product by heating the product in a subatmospheric pressure environment. The product may be heated in the subatmospheric pressure environment at a temperature sufficient to vaporize a volatile compound contained within the polymeric material such that vapors of the volatile compound are extracted or released from the product.

A system for and method of, processing post-consumer and post-industrial waste streams, producing active ingredients for waste stream processing, processing aqueous waste streams, preparing and collecting a multi-purpose chemical precursor, removing phosphates, nitrates, heavy metals, and other contaminants from aqueous waste streams, collecting and processing a post-consumer and post-industrial product from aqueous waste streams, administering and positioning assets and processes associated with waste stream processing, and scheduling operations for sub-systems of the system.

Process for the purification of the solvent deriving from the production of an elastomeric blend comprising the following steps: .(a) optionally, subjecting said solvent to a pre-washing (2) in the presence of at least one acid or basic aqueous solution; .(b) feeding said solvent to a liquid-liquid separation column (7); .(c) feeding the stream leaving the head of said liquid-liquid separation column (7) to an azeotropic distillation column (21); .(d) feeding the stream withdrawn laterally (side-withdrawal) from said azeotropic distillation column (21) to an adsorption section (34a/b); Said process allows to obtain a polymer grade solvent having a quality suitable for being used indifferently and contemporaneously in various types of production plants of elastomeric (co)polymers, i.e. in plants wherein an anionic (co)polymerization is carried out, and also in plants wherein a Ziegler-Natta (co)polymerization is carried out.

Process for the purification of the solvent deriving from the production of an elastomeric blend comprising the following steps: .(a) optionally, subjecting said solvent to a pre-washing (2) in the presence of at least one acid or basic aqueous solution; .(b) feeding said solvent to a liquid-liquid separation column (7); .(c) feeding the stream leaving the head of said liquid-liquid separation column (7) to an azeotropic distillation column (21); .(d) feeding the stream withdrawn laterally (side-withdrawal) from said azeotropic distillation column (21) to an adsorption section (34a/b); Said process allows to obtain a polymer grade solvent having a quality suitable for being used indifferently and contemporaneously in various types of production plants of elastomeric (co)polymers, i.e. in plants wherein an anionic (co)polymerization is carried out, and also in plants wherein a Ziegler-Natta (co)polymerization is carried out.

Disclosed herein is a system for recovering olefins from a vent stream comprising an absorber; and a stripper; where the absorber and the stripper are in a recycle loop; and where the absorber is operative to treat a vent stream with a solvent to remove more than 99 wt % of a halogenated by-product contained in the vent stream and to recover 90 to 95 wt % of olefin molecules present in the vent stream; and where the stripper is operative to remove more than 99 wt % of the halogenated by-products present in the solvent; and where the solvent is recycled to the absorber.

Disclosed herein is a system for recovering olefins from a vent stream comprising an absorber; and a stripper; where the absorber and the stripper are in a recycle loop; and where the absorber is operative to treat a vent stream with a solvent to remove more than 99 wt % of a halogenated by-product contained in the vent stream and to recover 90 to 95 wt % of olefin molecules present in the vent stream; and where the stripper is operative to remove more than 99 wt % of the halogenated by-products present in the solvent; and where the solvent is recycled to the absorber.

A process for separating components of a reactor off gas is provided. A related reactor system is also provided. The reactor system may include a high pressure tubular reactor and/or an autoclave reactor and may be used for the production polyolefin polymers.

A process for separating components of a reactor off gas is provided. A related reactor system is also provided. The reactor system may include a high pressure tubular reactor and/or an autoclave reactor and may be used for the production polyolefin polymers.