The system is provided for generating a mixed methane gas feed stream using at least one source of biogas and an alternate source of methane gas. The system includes a biogas subsystem, a control device for the methane gas from the at least one alternate source of methane gas, and a vertically-extending gas mixing vessel. A method of controlling a methane gas mass flow rate of a mixed methane gas feed stream is also disclosed. The proposed concept is particularly well adapted for situations where an uninterrupted and relatively constant input of methane gas is required to ensure an optimum operation of, for instance, a LMG production plant.

The present disclosure discloses a process for the continuous manufacture of a liquid pharmaceutical composition, the process comprising providing a mixing unit, feeding a therapeutic agent and a liquid vehicle to the mixing unit, operating the latter thereby mixing the agent and the vehicle into a liquid pharmaceutical composition, discharging the composition into a holding unit.

Compositions and methods are provided for a system in which liquid carbon dioxide, or a mixture of liquid and gaseous carbon dioxide, is converted to solid carbon dioxide by exiting an orifice at a sufficient pressure drop, e.g., for delivery of carbon dioxide to a concrete mixture in a mixer.

We disclose an apparatus (2) for supplying a particulate material (4) at a target mass flow rate, the apparatus comprising an entrainment region (6) configured to entrain the particulate material (4) in a gas or gas mixture flowing through the entrainment region (6), a cross-sectional area of at least a part of the entrainment region being adjustable based on the particulate material (4) and a supply device (8) configured to supply the particulate material (4) to the entrainment region (6) at approximately or at the target mass flow rate.

A batching system involves a vessel, a mixer, a pump, and an optical sensor, wherein the vessel, the mixer, the pump and the optical sensor are coupled together by piping so as to form a circuit within which materials will re-circulate while being mixed by the mixer until at least one reading from the optical sensor indicates that the materials are fully mixed. An associated batching method involves introducing into a vessel, via gravity feed through mass flow meters, multiple materials to be mixed, repeatedly circulating the materials through a mixer, a pump, a spectroscope and the vessel until a reading from the optical sensor indicates that the multiple materials are fully mixed, and once the multiple materials are fully mixed, dispensing the fully mixed materials into at least one package container using an articulated arm.

Compositions and methods are provided for a system in which liquid carbon dioxide, or a mixture of liquid and gaseous carbon dioxide, is converted to solid carbon dioxide by exiting an orifice at a sufficient pressure drop, e.g., for delivery of carbon dioxide to a concrete mixture in a mixer.