US 12,188,888 B2
Method and apparatus for evaluating hydrogen chloride evolution as a function of temperature
Flavio Cortinas Albuquerque, Petropolis (BR); Claudio Roberto Ribeiro Da Silva, Rio de Janeiro (BR); Nathalie Sanghikian, Rio de Janeiro (BR); and Mauricio Souza De Alencar, Rio de Janeiro (BR)
Assigned to PETROLEO BRASILEIRO S.A.—PETROBRAS, Rio de Janeiro (BR)
Filed by PETROLEO BRASILEIRO S.A.—PETROBRAS, Rio de Janeiro (BR)
Filed on May 13, 2021, as Appl. No. 17/319,470.
Claims priority of application No. 102020009844-6 (BR), filed on May 15, 2020.
Prior Publication US 2021/0356416 A1, Nov. 18, 2021
Int. Cl. G01N 25/48 (2006.01); B01L 3/00 (2006.01); B01L 3/08 (2006.01); B01L 7/00 (2006.01); B01L 9/04 (2006.01); G01N 27/416 (2006.01)
CPC G01N 25/4886 (2013.01) [B01L 3/08 (2013.01); B01L 3/561 (2013.01); B01L 7/00 (2013.01); B01L 9/04 (2013.01); G01N 25/482 (2013.01); G01N 27/4166 (2013.01); B01L 2200/12 (2013.01); B01L 2300/0645 (2013.01); B01L 2300/1805 (2013.01); B01L 2400/082 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method of constructing a system including a flask having a plurality of mouths for evaluating hydrogen chloride as a function of temperature, the method comprising:
providing a heating mantle on a lifting platform;
securing the flask on top of the heating mantle, wherein the flask includes paraffin oil;
adjusting a height of the lifting platform;
applying silicone grease to a portion of a stirring rod to facilitate passage of the stirring rod through a hole in a first connector, wherein a propeller is coupled on the stirring rod;
inserting the stirring rod through the hole in the first connector;
connecting the stirring rod to a stirring motor;
after the stirring rod is inserted through the hole in the first connector, inserting the first connector into a first mouth of the flask;
checking alignment of at least one of the heating mantle, the flask, the propeller, the stirring rod, or the stirring motor;
connecting a first end of a gas-dispersing tube to the flask;
fitting a hose to a second end of the gas-dispersing tube, wherein the hose is configured to allow inert gas to pass through the hose and the gas-dispersing tube into the flask;
wrapping a gas conducting tube with a first heating tape;
attaching the gas-conducting tube to the flask;
wrapping at least one of the plurality of mouths of the flask with a second heating tape;
electrically connecting the first heating tape and the second heating tape with a temperature control device;
attaching a first end of a Polytetrafluoroethylene (PTFE) hose to a second end of the gas-conducting tube;
connecting a second end of the PTFE hose with a separating funnel including a sintered glass tube;
providing the sintered glass tube of the separating funnel into a 250 ml beaker with a predetermined amount of deionized water; and
connecting a first temperature sensor to the flask such that a first end of the first temperature sensor touches the paraffin oil.