System for the production of molten salt used as a heat transfer medium for a pyrolysis system

A continuous liquefaction and filtration system for treatment of plastic waste, comprising:

• a first device configured to melt and filter solid waste plastic material;
• and
• a system for production of molten salt in fluid communication with the first device, the system having a preparation tank configured to melt a raw salt to form a molten salt, and a bubbler system in fluid communication with the preparation tank, the bubbler system configured to maintain a vacuum condition within the preparation tank and to remove gas from the preparation tank, wherein the system is further configured according to a member selected from a group consisting of:
• (a) the bubbler system includes a ring water vacuum pump and a bubbler, the ring water vacuum pump configured to pump gas from the preparation tank, to mix the gas with water to form a solution, and to pump the solution to the bubbler;
• (b) the bubbler system includes a vacuum pump and a bubbler, the bubbler including a pressure sensor, a temperature sensor, a pH sensor, and a neutralization system in communication with the pH sensor;
• and
• (c) the preparation tank includes a pressure sensor, a temperature sensor, and a level sensor, the level sensor configured to monitor for a predetermined level of bubbles in the preparation tank.

A method for producing molten salt, comprising:

• providing a system having a preparation tank configured to melt a raw salt to form a molten salt, and a bubbler system in fluid communication with the preparation tank, the bubbler system configured to maintain a vacuum condition within the preparation tank and to remove gas from the preparation tank, wherein the system is further configured according to a member selected from a group consisting of:
• (a) the bubbler system includes a ring water vacuum pump and a bubbler, the ring water vacuum pump configured to pump gas from the preparation tank, to mix the gas with water to form a solution, and to pump the solution to the bubbler;
• (b) the bubbler system includes a vacuum pump and a bubbler, the bubbler including a pressure sensor, a temperature sensor, a pH sensor, and a neutralization system in communication with the pH sensor;
• and
• (c) the preparation tank includes a pressure sensor, a temperature sensor, and a level sensor, the level sensor configured to monitor for a predetermined level of bubbles in the preparation tank;
• inserting the raw salt into the preparation tank;
• heating the raw salt to form the molten salt;
• filtering the molten salt;
• and
• storing the molten salt.