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Method and apparatus are provided for collecting reaction product solids entrained in a gaseous outflow from a reaction situs, wherein the gaseous outflow includes a condensable vapor. A condensate is formed of the condensable vapor on static mixer surfaces within a static mixer heat exchanger. The

Method and apparatus are provided for collecting reaction product solids entrained in a gaseous outflow from a reaction situs, wherein the gaseous outflow includes a condensable vapor. A condensate is formed of the condensable vapor on static mixer surfaces within a static mixer heat exchanger. The entrained reaction product solids are captured in the condensate which can be collected for further processing, such as return to the reaction situs. In production of silicon imide, optionally integrated into a production process for making silicon nitride caramic, wherein reactant feed gas comprising silicon halide and substantially inert carrier gas is reacted with liquid ammonia in a reaction vessel, silicon imide reaction product solids entrained in a gaseous outflow comprising residual carrier gas and vaporized ammonia can be captured by forming a condensate of the ammonia vapor on static mixer surfaces of a static mixer heat exchanger.

대표청구항 ▼

A method for collecting solids entrained in a gaseous outflow from a reaction situs during a reaction, the gaseous outflow exiting the reaction situs at an exit temperature and comprising a vapor condensable at a condensation temperature below the exit temperature, the method comprising: directing t

A method for collecting solids entrained in a gaseous outflow from a reaction situs during a reaction, the gaseous outflow exiting the reaction situs at an exit temperature and comprising a vapor condensable at a condensation temperature below the exit temperature, the method comprising: directing the gaseous outflow to an inlet of a static mixer heat exchanger having (a) a cooling chamber defining a flow path between the inlet and an outlet, (b) static mixer surfaces in the flow path for forming a condensate of the condensable vapor, and (c) cooling means for maintaining the static mixer surfaces at a temperature not greater than the condensation temperature; and operating the cooling means to cool the static mixer surfaces to form a condensate of the condensable vapor on the static mixer surfaces, capturing solids from the gaseous outflow in the condensate.