Answer to Question #160410 in Physical Chemistry for deepak

Question

In the following MCQ, identify the correct option and justify.

With reference to auxiliary injection in blast furnace, identify the correct statement(s).

a. Steam injection promotes indirect reduction in the blast furnace

b. Oil injection is usually coupled with oxygen enrichment

c. Replacement ratio for PCI is greater than 1

d. Use of high blast temperature results in lower productivity

Answer 1

b. Oil injection is usually coupled with oxygen enrichment

(b) is one of the answers as illustrated by (Song et la., 2020).

Song, L., Xiaojie, L., Qing, L., Xusheng, Z., & Yana, Q. (2020). Study on the Appropriate Production Parameters of a Gas-injection Blast Furnace. High Temperature Materials And Processes, 39(1), 10-25. https://doi.org/10.1515/htmp-2020-0005

d. Use of high blast temperature results in lower productivity

(d) is another answer as explained in the journal (Babich & Senk, 2019).

Babich, A., & Senk, D. (2019). Coke Rate. Sciencedirect. Retrieved 4 February 2021, from https://www.sciencedirect.com/topics/engineering/coke-rate.