Ethylene-based polymer, LDPE, is made in a high pressure polymerization process to comprising at least the step of polymerizing a reaction mixture comprising ethylene, using a reactor configuration comprising (A) at least two reaction zones, a first reaction zone (reaction zone 1) and an i reaction zone (reaction zone i where i>2), (B) at least two ethylene feed streams, each feed stream comprising a percentage of the total make-up ethylene fed to the polymerization process, in which a first ethylene feed stream is sent to reaction zone 1 and a second ethylene feed stream is sent to reaction zone i, and (C) a control system to control the percentage of the total make-up ethylene in the ethylene feed stream sent to reaction zone 1 and the percentage of the total make-up ethylene in the ethylene feed stream sent to reaction zone i.

An apparatus to decompose a hydrocarbon reactant into a gaseous product and a solid product includes a reactor volume, a reservoir of liquid material, a plurality of nozzles connected to the reservoir of liquid material, the plurality of nozzles configured to distribute the liquid material into the reactor volume from the reservoir as a liquid mist, a gas inlet connected to a hydrocarbon gas source to receive hydrocarbon gas reactant, a distributor connected to the inlet to distribute the hydrocarbon gas reactant into the reactor volume, a heat source located adjacent the reactor volume configured to heat the reactor volume, a separator to separate the solid product from the liquid material, a re-circulation path connected between the reactor volume and the reservoir to re-circulate the liquid material from the reactor volume to the reservoir, a gas outlet connected to the reactor volume configured to outlet hydrogen gas from the reactor volume, and at least one filter connected to the gas outlet to remove entrained solid product from the hydrogen gas.

A high pressure polymerization, as described herein, to form an ethylene-based polymer, comprising the following steps: polymerizing a reaction mixture comprising ethylene, using a reactor system comprising at least three ethylene-based feed streams and a reactor configuration that comprises at least four reaction zones, and at least one of the following a) through c), is met: (a) up to 100 wt % of the ethylene stream to the first zone comes from a high pressure recycle, and/or up to 100 wt % of the last ethylene stream to a zone comes from the output from a Primary compressor system; and/or (b) up to 100 wt % of the ethylene stream to first zone comes from the output from a Primary compressor system, and/or up to 100 wt % of the last ethylene stream to a zone comes from a high pressure recycle; and/or (c) the ethylene stream to the first zone, and/or the last ethylene stream to a zone, each comprises a controlled composition; and wherein each ethylene stream to a zone receives an output from two or more cylinders of the last compressor stage of a Hyper compressor system.

A portable electric powered or pneumatic powered paint system designed to worn in a typical workman's tool belt and thus accompany the painter as he moves from wall to wall and room to room without the restriction of electrical cords plugged into wall outlets or air hoses connected to an air compressor. The electrically powered embodiment of the invention consists of a paint reservoir, an electric paint pump, a power pack of two or more 18 Volt batteries, a paint applicator and associated paint supply tubing for transfer of paint from the reservoir to the paint applicator. The pneumatic embodiment of the invention replaces the electric paint pump and battery power pack with a pressurized air bottle and pressure regulator. Both embodiments of the invention provide the painter with a self-contained powered painting system.

A method to decompose a hydrocarbon reactant into a gaseous product and a solid product includes generating a mist of a liquid material within a reactor volume, heating the reactor volume, introducing a hydrocarbon reactant into the reactor volume to produce a solid product and a gaseous product, separating the solid product from the liquid material, removing the solid product and gaseous product from the reactor volume, and recirculating the liquid material be re-introduced to the reactor volume.

A process is described for the synthesis of methanol comprising the steps of: (i) passing a first synthesis gas mixture comprising a make-up gas through a first synthesis reactor containing a cooled methanol synthesis catalyst to form a first product gas stream, (ii) recovering methanol from the first product gas stream thereby forming a first methanol-depleted gas mixture, (iii) combining the first methanol-depleted gas mixture with a loop recycle gas stream to form a second synthesis gas mixture, (iv) passing the second synthesis gas mixture through a second synthesis reactor containing a cooled methanol synthesis catalyst to form a second product gas stream, (v) recovering methanol from the second product gas stream thereby forming a second methanol-depleted gas mixture, and (vi) using at least part of the second methanol-depleted gas mixture as the loop recycle gas stream, wherein the first synthesis reactor has a higher heat transfer per cubic meter of catalyst than the second synthesis reactor, none of the loop recycle gas stream is fed to the first synthesis gas mixture and the recycle ratio of the loop recycle gas stream to form the second synthesis gas mixture is in the range 1.1:1 to 6:1.

A process is described for the synthesis of methanol comprising the steps of: (i) passing a first synthesis gas mixture comprising a make-up gas through a first synthesis reactor containing a cooled methanol synthesis catalyst to form a first product gas stream, (ii) recovering methanol from the first product gas stream thereby forming a first methanol-depleted gas mixture, (iii) combining the first methanol-depleted gas mixture with a loop recycle gas stream to form a second synthesis gas mixture, (iv) passing the second synthesis gas mixture through a second synthesis reactor containing a cooled methanol synthesis catalyst to form a second product gas stream, (v) recovering methanol from the second product gas stream thereby forming a second methanol-depleted gas mixture, and (vi) using at least part of the second methanol-depleted gas mixture as the loop recycle gas stream, wherein the first synthesis reactor has a higher heat transfer per cubic metre of catalyst than the second synthesis reactor, none of the loop recycle gas stream is fed to the first synthesis gas mixture and the recycle ratio of the loop recycle gas stream to form the second synthesis gas mixture is in the range 1.1:1 to 6:1.

A portable electric (battery) powered paint system designed to worn in a typical workman's tool belt and thus accompany the painter as he moves from wall to wall and room to room without the restriction of electrical cords plugged into wall outlets. The invention consists of a paint reservoir, an electric paint pump, a power pack of two or more 18 Volt batteries, a paint applicator and associated paint supply tubing for transfer of paint from the reservoir to the paint applicator. The invention provides the painter with a self-contained powered painting system.

Ethylene-based polymer, LDPE, is made in a high pressure polymerization process to comprising at least the step of polymerizing a reaction mixture comprising ethylene, using a reactor configuration comprising (A) at least two reaction zones, a first reaction zone (reaction zone 1) and an i reaction zone (reaction zone i where i>2), (B) at least two ethylene feed streams, each feed stream comprising a percentage of the total make-up ethylene fed to the polymerization process, in which a first ethylene feed stream is sent to reaction zone 1 and a second ethylene feed stream is sent to reaction zone i, and (C) a control system to control the percentage of the total make-up ethylene in the ethylene feed stream sent to reaction zone 1 and the percentage of the total make-up ethylene in the ethylene feed stream sent to reaction zone i.

A portable electric (battery) powered paint system designed to worn in a typical workman's tool belt and thus accompany the painter as he moves from wall to wall and room to room without the restriction of electrical cords plugged into wall outlets. The invention consists of a paint reservoir, an electric paint pump, a power pack of two or more 18 Volt batteries, a paint applicator and associated paint supply tubing for transfer of paint from the reservoir to the paint applicator. The invention provides the painter with a self-contained powered painting system.