Page 18 - IEAR1_60y_Book_of_Abstracts_UPD

6 Invited Talks

30 Nov FLOW STUDY USING RADIOTRACER Kr-79
11:00am
2
M.B. Santos a,1 , L. C. Veiga and M. Beninca 2
a
michel.bessa@tracerco.com
1
Tracerco do Brasil, Rio de Janeiro, Brazil
2 Braskem, São Paulo, Brazil

Flare is an equipment present in refineries and petrochemicals where the waste
gases of different processes of the plant are burned and thrown into the atmosphere.
The world’s interest in reducing air pollution and optimizing processes by eliminating
losses has been increasing over the years as this influences the company’s financial
performance and climate change. Worldwide we have over 130 billion cubic meters
of gas burned annually. An investigation was carried out in some process lines of a
petrochemical to evaluate which contribute in a more significant way to the flow of
the flare, in order to reduce them. Using the Tracerco Diagnostics T M Flow Study
technique, a radioactive tracer Kr-79 that faithfully follows the gas flow from the
pipes, was injected into the sections to be analyzed. Radiation detectors were placed
along the tubes. The gas velocity was calculated by detecting the movement of the
radioisotope inside the tubing, and therefore the flow of the fluid. In this way, it was
possible to verify which part of the process had the greatest contribution of gases
to a future reduction, thus reducing the burning and the material released into the
atmosphere.

This work was presented at COTEQ - Conferência sobre Tecnologia de Equipamentos 2017 (talk)

NEUTRONIC IRRADIATION APPLIED TO GEOCHRONOLOGY: FISSION
30 Nov TRACK ANALYSIS
2:00pm
A.R. Jelinek a
a
andrea.jelinek@ufrgs.br
Federal University of Rio Grande do Sul, Brazil

Fission-track analysis has developed into one of the most useful techniques used
throughout the geologic community to reconstruct the low-temperature thermal his-
tory of rocks over geological time. Applicable geological settings include orogenic
belts, rifted margins, faults, sedimentary basins, cratons, and mineral deposits. The
types of geologic problems that can be addressed include the timing and rates of
tectonic events, sedimentary basin evolution, the timing of hydrocarbon generation
and ore mineralization, the absolute age of volcanic deposits, the effects of major
climatic changes on the near-surface geothermal gradient, and long-term landscape
evolution (Donelick et al., 2005).
The spontaneous fission of a 238 U atom generates two smaller, strongly ionized
atoms, which repel each other in opposite directions, disturbing the electronic balance
of the atoms and leaving a structurally defective linear 100Å- (10nm-) wide zone in